Mercedes-Benz E-Klasse W211
Weaknesses, engine ratings and buying advice
The W211 E-Class (2003–2009) was Mercedes' most technically ambitious E-Class — and that's exactly what became its downfall. SBC brakes, Airmatic air suspension, and SAM electronics make the W211 the most maintenance-intensive in its class. But after 20 years, the wheat has separated from the chaff.
Engine choice: The OM642 3.0 V6 CDI in the E 280/E 320 CDI is the recommendation — torquey, refined, 300,000+ km with care. The OM646/OM647 (E 200/E 220/E 270 CDI) are frugal long-distance diesels. The M272 V6 (E 350) is the pleasant petrol. Avoid: Early M271 Kompressor petrols (timing chain issues past 200,000 km). E 500 V8 — five-figure running costs.
The SBC debacle: The electro-hydraulic SBC brake system (Sensotronic Brake Control) was recall reason #1. Mercedes extended the warranty to 25 years / unlimited mileage — a 2003 W211 is still covered in 2026. Still: SBC warning light on test drive = immediately clarify warranty status. Airmatic air suspension fails on virtually every W211 eventually — compressor and air springs are the most expensive wear items ($1,100–3,850). SAM control unit fails from water ingress.
Test-drive checklist: Rear corner sags → Airmatic. SBC warning light? Dashboard error messages → SAM. Cold start rattle on M271 → timing chain.
2026 market: E 200/E 220 CDI from $3,300–6,600. E 280/E 320 CDI well-kept $5,500–11,000. AMG E 55/E 63 from $16,500.
Insider pick: E 280 CDI (OM642, facelift 2006–2009) without Airmatic — after the SBC debacle, the W211 from 2006 became one of the most solid diesel saloons ever built.
514 PS
AMG E 63 · Benzin
Business V8 — 525 hp in an Executive Saloon
Fun to Drive!457–525 PS
6.2L V8 AMG Benzin
10 weaknesses
Stay Away!Body Variants
The Mercedes-Benz E-Klasse W211 is available as Sedan and T-Modell — choose your body type for specific insurance data:
Generations
Engine Overview
The Mercedes-Benz E-Klasse W211 is available with 15 engine variants — from 95 to 525 hp. 3 variants had engine changes — the model year is crucial.
Development of the OM611. Economical and reliable; known weakness is the crankshaft damper. Check belt tensioner.
- !! Dual-Mass Flywheel — Rivets Shear from 170,000 km
On the OM646, all 8mm rivets in the DMF can shear. The resulting imbalance damages the clutch disc and crankshaft position sensor. Repair approximately €2,000.
Symptoms: Clutch shudder when engaging after cold start, vibrations when pulling away, loud rattling or clattering at part load - !! Injectors Coked — Elevated Return Quantities from 180,000 km
OM646 injectors wear internally through deposits; elevated return quantities cause rough running and power loss. EGR coking aggravates the problem.
Symptoms: Hard starting (especially cold), hesitation under acceleration, rough idle, dark exhaust plume - !! Wrong Belt Tensioner Fitted — Risk of Mix-Up from 150,000 km
The OM646 exists in variants with and without an alternator freewheel. Belt tensioners are not interchangeable. Workshops frequently confuse the two types.
Symptoms: Belt flutter at the alternator area, squealing noises, alternator damage, belt snap
+ 3 more engine weaknesses + vehicle weaknesses
Development of the OM611. Economical and reliable; known weakness is the crankshaft damper. Check belt tensioner.
- !! Dual-Mass Flywheel — Rivets Shear from 170,000 km
On the OM646, all 8mm rivets in the DMF can shear. The resulting imbalance damages the clutch disc and crankshaft position sensor. Repair approximately €2,000.
Symptoms: Clutch shudder when engaging after cold start, vibrations when pulling away, loud rattling or clattering at part load - !! Injectors Coked — Elevated Return Quantities from 180,000 km
OM646 injectors wear internally through deposits; elevated return quantities cause rough running and power loss. EGR coking aggravates the problem.
Symptoms: Hard starting (especially cold), hesitation under acceleration, rough idle, dark exhaust plume - !! Wrong Belt Tensioner Fitted — Risk of Mix-Up from 150,000 km
The OM646 exists in variants with and without an alternator freewheel. Belt tensioners are not interchangeable. Workshops frequently confuse the two types.
Symptoms: Belt flutter at the alternator area, squealing noises, alternator damage, belt snap
+ 3 more engine weaknesses + vehicle weaknesses
Five-cylinder CDI, successor to the OM612. Stronger mid-class diesel; injector problems possible at higher mileages.
- !! Serial Injector Failure — All 5 Cylinders Affected from 180,000 km
On the OM647 (5-cylinder engine) injectors frequently fail together. A Mercedes internal bulletin required replacement of all injectors. Single-injector repair leads to subsequent failures.
Symptoms: Hard starting (10–20 attempts), hesitant throttle response, rough running - !! Crankshaft Sensor Failure — Breakdown Risk from 150,000 km
The crankshaft position sensor fails without warning and prevents engine start or causes sudden engine cut-out while driving.
Symptoms: Engine won't start, engine dies while driving, fault code P0335/P0336 - !! Dual-Mass Flywheel — High Torque Stresses the DMF from 160,000 km
The five-cylinder torque of the OM647 stresses the DMF heavily. LUK recommends preventive replacement from 150,000 km during clutch work. Secondary damage to the clutch and gearbox is possible.
Symptoms: Rattling and clattering at warm idle, judder when pulling away and changing gear, vibrations that transfer through the vehicle, noise disappears when clutch is depressed
+ 3 more engine weaknesses + vehicle weaknesses
Development of the OM613 R6-CDI. Powerful six-cylinder diesel, complex and maintenance-intensive. Check common rail system.
- !! High-Pressure Pump — Common Rail Pressure Dropping from 250,000 km
The Bosch high-pressure pump can cause rail pressure drop at high mileage. Difficult starting and erratic injection behaviour follow.
Symptoms: Hard starting (especially cold), engine only starts after several attempts, hesitation under load - !! CDI Injector Failure from 150,000 km
The OM648 uses Bosch high-pressure injectors that tend to leak at high mileages. A faulty injector leads to poor combustion and increased soot production.
Symptoms: Rough idle, black smoke, power loss, frequent DPF regeneration, rising oil level - !! Turbocharger Bearing Failure from 180,000 km
The OM648 turbocharger suffers bearing damage from insufficient oil supply or contaminated oil. Faulty oil return lines and blocked oil drillings contribute to the damage.
Symptoms: Whistling or rattling from the turbo area, blue smoke under acceleration, oil loss at the turbo
+ 5 more engine weaknesses + vehicle weaknesses
V6 diesel with common rail and piezo injectors. Powerful and refined. Known for blocked oil coolers, swirl flap failure and EGR problems. High mileages possible with good maintenance.
- !! Oil Cooler Gaskets Leaking — Oil and Coolant Loss from 120,000 km
The best-known problem of the OM642: the oil cooler gaskets in the V-section of the engine fail. Oil leaks into the coolant or externally. Particularly prone on vehicles built up to 2009.
Symptoms: Oil loss warning, oil spots under the left side of the vehicle, oil streaks visible on the belt tensioner - !! Swirl Flap Linkage Breaks — Plastic Joint Fails from 100,000 km
The plastic linkages of the swirl flaps in the OM642 intake manifold break. Aluminium repair kits are available and more durable. In the event of complete failure there is a risk of debris entering the engine.
Symptoms: Engine warning light, fault codes for intake flap/swirl flap, power loss particularly at low rpm - !! Injector Seal Leaking — Soot Deposits and Diesel in Oil from 120,000 km
Piezo injectors seal poorly from heat, diesel enters the engine oil. Oil loses lubrication properties, tar-like residue around injectors is the typical telltale sign.
Symptoms: Rough idle, increased fuel consumption, knocking noises, oil level rising due to diesel contamination, engine oil smells of diesel
+ 4 more engine weaknesses + vehicle weaknesses
Development of the OM613 R6-CDI. Powerful six-cylinder diesel, complex and maintenance-intensive. Check common rail system.
- !! High-Pressure Pump — Common Rail Pressure Dropping from 250,000 km
The Bosch high-pressure pump can cause rail pressure drop at high mileage. Difficult starting and erratic injection behaviour follow.
Symptoms: Hard starting (especially cold), engine only starts after several attempts, hesitation under load - !! CDI Injector Failure from 150,000 km
The OM648 uses Bosch high-pressure injectors that tend to leak at high mileages. A faulty injector leads to poor combustion and increased soot production.
Symptoms: Rough idle, black smoke, power loss, frequent DPF regeneration, rising oil level - !! Turbocharger Bearing Failure from 180,000 km
The OM648 turbocharger suffers bearing damage from insufficient oil supply or contaminated oil. Faulty oil return lines and blocked oil drillings contribute to the damage.
Symptoms: Whistling or rattling from the turbo area, blue smoke under acceleration, oil loss at the turbo
+ 5 more engine weaknesses + vehicle weaknesses
V6 diesel with common rail and piezo injectors. Powerful and refined. Known for blocked oil coolers, swirl flap failure and EGR problems. High mileages possible with good maintenance.
- !! Oil Cooler Gaskets Leaking — Oil and Coolant Loss from 120,000 km
The best-known problem of the OM642: the oil cooler gaskets in the V-section of the engine fail. Oil leaks into the coolant or externally. Particularly prone on vehicles built up to 2009.
Symptoms: Oil loss warning, oil spots under the left side of the vehicle, oil streaks visible on the belt tensioner - !! Swirl Flap Linkage Breaks — Plastic Joint Fails from 100,000 km
The plastic linkages of the swirl flaps in the OM642 intake manifold break. Aluminium repair kits are available and more durable. In the event of complete failure there is a risk of debris entering the engine.
Symptoms: Engine warning light, fault codes for intake flap/swirl flap, power loss particularly at low rpm - !! Injector Seal Leaking — Soot Deposits and Diesel in Oil from 120,000 km
Piezo injectors seal poorly from heat, diesel enters the engine oil. Oil loses lubrication properties, tar-like residue around injectors is the typical telltale sign.
Symptoms: Rough idle, increased fuel consumption, knocking noises, oil level rising due to diesel contamination, engine oil smells of diesel
+ 4 more engine weaknesses + vehicle weaknesses
Mercedes' first V8 diesel in automotive history — world premiere in 2000. Common rail at 1,350 bar, two turbos in tandem, 4.0 litres. Result: 570 Nm from 1,600 rpm, a character that no petrol engine of that class could match in composure at the time. Maintenance-intensive. Timing chain and tensioners are due around 150,000 km — not optional, mandatory. The right-hand turbocharger is the known weakness and will need replacing sooner or later. Injectors and high-pressure pump dislike poor-quality fuel. Oil every 10,000 km, Mercedes approval 229.51 or better — the engine does not forgive cutting corners on lubricant. With thorough maintenance 300,000 km is realistic. None of this is cheap, but anyone who buys a V8 diesel budgets for it.
- !! Timing chain and tensioner worn from 160,000 km
Timing chain stretches from around 150,000 km; chain tensioner and guides wear. Cold-start rattling is a typical early warning. Left untreated, chain jump and total engine failure threaten.
Symptoms: Metallic rattling on cold start that subsides after 3-5 seconds. With severe stretch also audible at operating temperature. - !! Bi-turbo failure (right turbocharger preferentially) from 100,000 km
The right turbocharger is the classic weak point of the OM628. Total failure of both turbos from around 90,000-100,000 km has been documented. Repair on the V8 diesel is correspondingly labour-intensive.
Symptoms: Significant power loss, blue or white smoke from exhaust, whistling noise under load. - !! Coolant loss through cylinder head from 200,000 km
Under extreme pressure loading, head gaskets fail. CO2 enters the cooling system; increased pressure pushes coolant out through the expansion tank. Engine removal required for repair.
Symptoms: Coolant warning light, coolant overflows from expansion tank, coolant level drops continuously.
+ 3 more engine weaknesses + vehicle weaknesses
Successor to the OM628, from 2005 with revised common rail injection at 1,600 bar and piezo injectors. Power output rose to up to 320 hp at 730 Nm — the gearbox hit its limits early, prompting Mercedes to recalibrate the NAG2 mapping during series production. Mechanically the OM629 shares most challenges with its predecessor but adds its own: the oil cooler in the V-area tends to leak at high mileages and additionally promotes EGR fouling of the intake tract. Cylinder heads come under extreme pressure during high-rpm full-load pulls — warped heads are not uncommon beyond 200,000 km. Piezo injectors demand clean fuel and short oil change intervals (10,000 km, 229.51 or 229.52). Anyone taking on this engine should budget for preventive oil cooler and seal replacement early on.
- !! Cylinder head warped -- coolant loss from 250,000 km
Warped cylinder heads allow combustion gases into the cooling system. Overpressure constantly pushes coolant out through the expansion tank. Engine runs at temperature, coolant level drops steadily -- replacement costs 5,000-16,000 EUR.
Symptoms: Coolant warning light despite stable engine temperature, coolant overflow from expansion tank, no visible external leak. - !! NAG2 transmission at torque limit from 120,000 km
The NAG2 automatic transmission is rated for approximately 700 Nm; the OM629 delivers up to 730 Nm. Early build years without shift module adaptation showed driveshaft failures and gearbox problems. Later revised.
Symptoms: Shift jerks, gearbox fault messages, missed shifts, vibration on pull-away. - !! Oil Cooler Leak in V-Section from 180,000 km
The oil cooler sits at the lowest point in the V-section of the engine and seals with rubber gaskets. At high mileages oil seeps out, pools in the V and drips down. Repair takes approximately 2 days.
Symptoms: Oil spots under the vehicle, oil mist in the V-section of the engine bay, elevated oil consumption.
+ 3 more engine weaknesses + vehicle weaknesses
6.2-litre naturally aspirated V8, hand-built in Affalterbach to the 'One Man, One Engine' principle. 457–525 hp without any forced induction, rev limit at 7,200 rpm. The sound defines an era: a deep, bass-heavy rumble at 3,000 rpm, a scream above 5,000 that recalls American V8 racing engines. Throttle response is immediate — no turbo lag, no hesitation, every throttle command is executed instantly. Critical issue number one: camshafts wear out through inadequate cold-start lubrication with the factory 0W-40 oil. Switch to Ravenol 5W-40 RCS, let the engine idle for 10 seconds after a cold start, stay below 3,000 rpm until fully warm. Head bolt corrosion on engine numbers below 060658 (up to approx. 2010) — check without fail. Star Technical Bulletin 05.20/20b documents the tappet problem officially. Parts availability is becoming increasingly difficult — hydraulic tappets A1560500225 sometimes not available for months. Maintain the M156 properly and you have one of the most emotional V8s of the last 30 years.
- !! Head Bolt Corrosion — Coolant in Combustion Chamber from 50,000 km
All M156 up to engine number 060658 affected: head bolts corrode through coolant contact at the bolt head, in worst case break off. Coolant enters the combustion chamber — engine damage. Mercedes fitted improved bolts from approx. 2010 (20x A1560160769 + 4x N000000005754, approx. 108 EUR net). Preventive replacement strongly recommended.
Symptoms: Coolant loss without visible leak, white smoke from exhaust, oil-coolant mixture, check engine light, misfires on individual cylinders. - !! Camshaft Wear — Cold-Start Lubrication Deficit from 60,000 km
Main problem of the M156: the factory 0W-40 oil drains from the camshafts at standstill; at cold start the lobes run briefly dry. Wear deteriorates exponentially. Camshaft regrinding (TechnoCam and others) as a cheaper alternative to new parts — 50% saving. Always replace the 32 hydraulic tappets (INA A1560500225) at the same time.
Symptoms: Metallic ticking on cold start that disappears after 30–60 seconds, rough idle, power loss in the upper rev range. Remove valve cover and check lobe tips for wear. - !! Camshaft Adjuster — Locking Plate Wears Out from 70,000 km
The fit of the locking plate in the camshaft adjuster widens over time — the adjuster slips, timing shifts. Clattering on cold start is the first symptom. Reinforced locking plates (300–1,000 EUR for 4 pieces) as a permanent solution. Bearing cap torque 10 Nm, adjuster 45 Nm + 90°.
Symptoms: Rattling/clattering on cold start for 2–10 seconds, disappears after oil pressure build-up. With advanced wear: also audible when warm, rough idle, shifted timing, power loss.
+ 7 more engine weaknesses + vehicle weaknesses
Compact four-cylinder with mechanical supercharger. Known for timing chain stretch from approx. 100,000 km. Supercharger magnetic clutch can fail. Manual gearbox rare.
- !! Timing Chain Stretches Prematurely from 85,000 km
The simplex timing chain on the M271 is the most well-known wear issue: it can stretch before 100,000 km. In advanced stages it skips teeth and causes engine damage.
Symptoms: Rattling on cold start (diesel-like noise), camshaft fault codes, check engine light, in extreme cases engine damage - !! Camshaft Adjuster Leaks — Oil in Wiring Harness from 120,000 km
The camshaft adjuster solenoids develop leaks. The wiring harness absorbs oil by capillary action, which migrates as far as the engine ECU and damages it.
Symptoms: CEL with P0010/P0015, oil traces at camshaft connectors, in worst case ECU failure - !! Camshaft Adjuster Leaks Oil into Connector from 100,000 km
The camshaft adjuster seals on the M271 become porous and allow oil into the electrical connectors. The result is fault codes and check engine light.
Symptoms: Check engine light, camshaft adjuster fault codes, rough running, oil in adjuster connector
+ 3 more engine weaknesses + vehicle weaknesses
Three-valve V6 with individual ignition coils. Smooth and strong. Typical weak points: crankcase breather and intake manifold flaps. High mileages achievable.
- !! Camshaft Adjuster Leaks Oil into Wiring Harness from 130,000 km
The camshaft adjuster solenoid on the M112 develops a leak and draws oil by capillary action into the wiring harness. Oil can migrate as far as the engine ECU and destroy it.
Symptoms: Cold-start rattling that disappears after 1–2 seconds, camshaft adjuster fault code, oil traces at wiring connector, later ECU faults - !! Intake Manifold Vacuum Hose Breaks from 120,000 km
The vacuum hose for the variable intake manifold on the M112 becomes brittle and breaks. The swirl flaps stick. The hose is not available individually — the entire intake manifold is needed.
Symptoms: Power drop, slight hesitation at part throttle, engine runs but without full power - !! Valve Cover Gasket and Front Cover Gasket Leaking from 130,000 km
On the M112 V6 the valve cover gaskets become porous over time. Especially the rubber seals on the front cover between the timing cover and engine block fail on virtually all high-mileage M112 engines.
Symptoms: Oil spots on the floor, oil smell after driving, oily engine bay, dropping oil level
+ 4 more engine weaknesses + vehicle weaknesses
Four-valve V6 with variable valve timing. Smooth and powerful. Known for balance shaft wear (revision sprocket) on early build years. Balance shaft gear problem addressed by Mercedes with a recall.
- !! Balance Shaft Sprocket Wears Prematurely from 140,000 km
The plastic balance shaft sprocket on the M272 wears prematurely from the timing chain. The right cylinder bank goes out of timing. Affected up to end of October 2006.
Symptoms: Fault codes P0016/P0017 (camshaft right bank), chain rattling, rough running at idle, in extreme cases engine damage - !! Timing Chain Stretches and Damages Timing from 120,000 km
Alongside the balance shaft issue the M272 shows premature timing chain stretch. Chain wear on softer sprockets leads to timing deviations.
Symptoms: Chain noise especially on cold start, camshaft fault codes, rough running, engine irregularities - !! Camshaft Adjuster Leaks — Wiring Harness Contaminated from 90,000 km
Four camshaft adjuster solenoids (two per cylinder bank) develop leaks; oil creeps into the wiring harness as far as the ECU. Repair costs up to €1,700 documented.
Symptoms: CEL, oil traces at camshaft connectors, lambda sensor failure due to oil contamination, non-specific faults that recur
+ 3 more engine weaknesses + vehicle weaknesses
Three-valve V6 with individual ignition coils. Smooth and strong. Typical weak points: crankcase breather and intake manifold flaps. High mileages achievable.
- !! Camshaft Adjuster Leaks Oil into Wiring Harness from 130,000 km
The camshaft adjuster solenoid on the M112 develops a leak and draws oil by capillary action into the wiring harness. Oil can migrate as far as the engine ECU and destroy it.
Symptoms: Cold-start rattling that disappears after 1–2 seconds, camshaft adjuster fault code, oil traces at wiring connector, later ECU faults - !! Intake Manifold Vacuum Hose Breaks from 120,000 km
The vacuum hose for the variable intake manifold on the M112 becomes brittle and breaks. The swirl flaps stick. The hose is not available individually — the entire intake manifold is needed.
Symptoms: Power drop, slight hesitation at part throttle, engine runs but without full power - !! Valve Cover Gasket and Front Cover Gasket Leaking from 130,000 km
On the M112 V6 the valve cover gaskets become porous over time. Especially the rubber seals on the front cover between the timing cover and engine block fail on virtually all high-mileage M112 engines.
Symptoms: Oil spots on the floor, oil smell after driving, oily engine bay, dropping oil level
+ 4 more engine weaknesses + vehicle weaknesses
Four-valve V6 with variable valve timing. Smooth and powerful. Known for balance shaft wear (revision sprocket) on early build years. Balance shaft gear problem addressed by Mercedes with a recall.
- !! Balance Shaft Sprocket Wears Prematurely from 140,000 km
The plastic balance shaft sprocket on the M272 wears prematurely from the timing chain. The right cylinder bank goes out of timing. Affected up to end of October 2006.
Symptoms: Fault codes P0016/P0017 (camshaft right bank), chain rattling, rough running at idle, in extreme cases engine damage - !! Timing Chain Stretches and Damages Timing from 120,000 km
Alongside the balance shaft issue the M272 shows premature timing chain stretch. Chain wear on softer sprockets leads to timing deviations.
Symptoms: Chain noise especially on cold start, camshaft fault codes, rough running, engine irregularities - !! Camshaft Adjuster Leaks — Wiring Harness Contaminated from 90,000 km
Four camshaft adjuster solenoids (two per cylinder bank) develop leaks; oil creeps into the wiring harness as far as the ECU. Repair costs up to €1,700 documented.
Symptoms: CEL, oil traces at camshaft connectors, lambda sensor failure due to oil contamination, non-specific faults that recur
+ 3 more engine weaknesses + vehicle weaknesses
Naturally aspirated V8 in three displacements from 4.3 to 5.5 litres — old-school character with no turbo lag. Linear power delivery, deep rumble from 2,000 rpm building to a hoarse roar above 5,000. Peak torque at 3,000; beyond that it thins out — yet it's silky in part-throttle and surprisingly economical. Achilles heel is the seals: rear crankshaft oil seal practically universal above 150,000 km (gearbox removal required, 600–900 EUR), valve covers and oil filter housing seep with age. All cheap parts. The one critical point: the rubber damper on the crankshaft pulley hardens with age — when it fails the pulley machines into the sump. Replace preventively every 150,000 km. Oil changes every 10,000 km with 5W-40, 16 spark plugs every 60,000–80,000 km — then 400,000 km is realistic.
- !! Vibration Damper/Pulley — Rubber Hardens from 170,000 km
The rubber damper in the crankshaft pulley hardens with age and can eat into the sump — catastrophic consequential damage. Preventive replacement every 150,000 km strongly recommended.
Symptoms: Unusual vibrations at idle, in worst case metallic scraping from below. Often no prior warning — sudden failure. - !! Rear Crankshaft Seal Leaking from 150,000 km
The rear crankshaft seal is leaking on virtually all M113 engines above 150,000 km. Gearbox removal required — 600–900 EUR workshop costs. If oil creeps into the torque converter it becomes expensive.
Symptoms: Oil drops or oil film visible at the engine-gearbox interface, oil loss without any other apparent leak on the engine. - !! Engine Mounts Worn Prematurely from 90,000 km
Engine mounts can fail before 100,000 km. Practical test: finger between the stabiliser bar and front sump — no clearance means the mount is dead. Not visually checkable without removal.
Symptoms: Vibrations in interior especially at idle, dull rumbling on acceleration, in worst case contact between engine and bodywork.
+ 7 more engine weaknesses + vehicle weaknesses
Large-displacement naturally aspirated V8, second generation with variable valve timing on all four camshafts. Technically related to the M272 V6 — shares its known balance shaft sprocket problem on build years before 2007 (engine number below 088611). From that number the sprocket was made of hardened steel. Check early engines for fault codes P0016/P0017 and cold-start chain noise. The 5.5-litre with 285 kW is the typical variant; the 5.0-litre with 225–250 kW is somewhat more forgiving in heavier vehicles. The M278 BiTurbo successor is more efficient and more powerful, but sounds considerably less characterful — the M273 is the last true naturally aspirated V8 from Stuttgart. Pre-purchase: always check for camshaft adjuster leaks (oil in wiring harness) and thermostat fault P0128. Oil changes every 10,000 km with MB 229.5.
- !! Balance shaft sprocket — same weakness as M272 from 140,000 km
The M273 V8 shares the balance shaft sprocket issue with the M272 V6. The soft composite material of the sprocket wears down, causing timing chain rattle.
Symptoms: Fault codes P0016/P0017, chain rattling, rough idle, power loss - !! Camshaft Adjuster Leaking — Oil in Wiring Harness from 110,000 km
As with the similarly-designed M272, the solenoid valves leak. The V8 has 4 per bank — consequential costs are particularly high due to more solenoids. Oil migrates by capillary action all the way to the ECU.
Symptoms: Check engine light with camshaft fault codes P0014/P0015/P0021/P0025, lambda sensor failures, in extreme cases ECU failure - !! Valve cover gaskets leaking on both sides from 130,000 km
Like the M113, the valve cover gaskets on the M273 V8 become porous over time. With a V8 having two cylinder heads, the workload doubles.
Symptoms: Oil spots under the vehicle, oil smell after hard driving, oily engine bay
+ 6 more engine weaknesses + vehicle weaknesses
5.4-litre V8 with Eaton Lysholm twin-screw supercharger — the legendary 'Kompressor' AMG. 476–500 hp depending on model, 700+ Nm from 2,650 rpm. The sound is unmistakable: a deep V8 rumble overlaid with the characteristic supercharger whine under load — at full throttle a mechanical scream that's instantly addictive. Torque arrives like a wave: gently swelling then brutal. No turbo lag, no throttle delay — the supercharger delivers boost from idle. Tuning potential is enormous: a pulley swap (83 mm instead of 87 mm) adds 40–50 hp at the rear wheels, and the community has pushed the engine beyond 800+ hp. Critical maintenance points: supercharger magnetic clutch (check air gap 0.35–0.45 mm), charge air cooler pump (low-temperature circuit), rear crankshaft seal. Oil changes with 0W-40 every 10,000 km. Pre-2004 engines had more teething problems — noticeably more mature from 2004. One of the most robust AMG engines ever built when maintained properly.
- !! Supercharger Bearings — Wear at High Mileage from 120,000 km
The Eaton supercharger bearings wear after 100,000+ km — mechanical noise increases, in worst case the supercharger seizes. Check supercharger oil (120–130 ml) regularly. Replacement supercharger from 1,200 EUR, complete with installation 2,500–3,500 EUR.
Symptoms: Increasing mechanical whining/howling from the supercharger even at low rpm, metallic grinding under load, supercharger oil loss. - !! Cooling System — Hoses and Thermostat Age from 80,000 km
Coolant hoses become brittle after 10+ years and can burst without warning — particularly critical on a supercharged V8 with high heat rejection. Thermostat occasionally sticks open. Complete coolant hose set as prevention from 60,000 km recommended.
Symptoms: Coolant temperature rises above 100°C, coolant steam under the bonnet, coolant loss, sweet smell from vents. - !! Supercharger Magnetic Clutch — Wear and Slipping from 80,000 km
The Eaton supercharger magnetic clutch wears over time — friction material wears, supercharger sporadically fails to engage. Air gap (clearance) must be 0.35–0.45 mm; above 0.8 mm the clutch no longer engages reliably. Aftermarket pulley modifications worsen the problem if air gap is not correctly set.
Symptoms: Sporadic power loss at full throttle, supercharger does not engage (no supercharger whine audible), EPC fault message in instrument cluster, releasing and re-applying throttle helps briefly.
+ 6 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| AIRMATIC Air Reservoir and Compressor Failure AIRMATIC air suspension wears heavily. Air reservoir and compressor fail frequently. Replacement requires complete rear axle disassembly — very costly. Symptoms: Vehicle sags heavily at the rear after switching off, AIRMATIC fault message, vehicle fails to rise at start from 120,000 km | High | |
| Control arm and track rod end bearings worn Control arm and track rod end bearings develop play. A common MOT failure point. Regular cause for failed MOT inspection. Symptoms: Rumbling from the front, vehicle tracks poorly, MOT failure on suspension from 120,000 km | Medium |
Test Reports
TÜV Report 2024
MOT results sit in the middle range with known weaknesses at the rear axle.
2023-11ADAC Breakdown Statistics 2023
Older examples of the model series stand out with clusters of breakdowns at the starter, ignition lock and battery.
2023-04Top Reported Issues
Alternatives
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Known Problems and Issues +
A total of 124 weaknesses have been documented for the Mercedes-Benz E-Klasse W211 (2002–2009) — 120 engine-related and 4 vehicle-related. 8 problem engines: M271 (1.8L Kompressor), M272 (3.0-3.5L V6), M273 (5.0-5.5L V8), OM612 (2.7L 5-Zyl Diesel), OM642 (3.0L V6 Diesel), M156 (6.2L V8 AMG), OM613 (3.2L R6 CDI), OM629 (4.0L V8 CDI). Typical issues affect Suspension, Brakes, Electronics.
E-Klasse (OM611, 1998–2003) — Be Careful: Dual-Mass Flywheel Prematurely Worn, Injectors leaking -- seating face failure, Intake manifold flaps break off. Power: 95–102 PS.
E-Klasse (OM611, 1998–2003) — Be Careful: Dual-Mass Flywheel Prematurely Worn, Injectors leaking -- seating face failure, Intake manifold flaps break off. Power: 136–150 PS.
E-Klasse (OM612, 2000–2003) — Stay Away!: "Black Death" -- injector seal failure with tar formation, EGR cooler fails -- coolant in intake, Cylinder head crack -- coolant loss under load. Power: 163–177 PS.
E-Klasse (OM613, 2000–2003) — Stay Away!: Injector Sealing Washers Burnt In — Injectors Seized, Turbocharger Oil Supply Insufficient — Bearing Failure, Injector failure at high mileage. Power: 197–204 PS.
E-Klasse (OM646, 2002–2009) — Be Careful: Dual-Mass Flywheel — Rivets Shear, Injectors Coked — Elevated Return Quantities, Wrong Belt Tensioner Fitted — Risk of Mix-Up. Power: 136–143 PS.
E-Klasse (OM646, 2002–2009) — Be Careful: Dual-Mass Flywheel — Rivets Shear, Injectors Coked — Elevated Return Quantities, Wrong Belt Tensioner Fitted — Risk of Mix-Up. Power: 143–150 PS.
E-Klasse (OM647, 2002–2006) — Be Careful: Serial Injector Failure — All 5 Cylinders Affected, Crankshaft Sensor Failure — Breakdown Risk, Dual-Mass Flywheel — High Torque Stresses the DMF. Power: 170–177 PS.
E-Klasse (OM648, 2002–2006) — Be Careful: High-Pressure Pump — Common Rail Pressure Dropping, CDI Injector Failure, Turbocharger Bearing Failure. Power: 197–204 PS.
E-Klasse (OM648, 2002–2006) — Be Careful: High-Pressure Pump — Common Rail Pressure Dropping, CDI Injector Failure, Turbocharger Bearing Failure. Power: 177 PS.
E-Klasse (OM628, 2003–2006) — Be Careful: Timing chain and tensioner worn, Bi-turbo failure (right turbocharger preferentially), Coolant loss through cylinder head. Power: 260 PS.
E-Klasse (OM646, 2003–2006) — Be Careful: Dual-Mass Flywheel — Rivets Shear, Injectors Coked — Elevated Return Quantities, Wrong Belt Tensioner Fitted — Risk of Mix-Up. Power: 122 PS.
E-Klasse (OM642, 2005–2009) — Stay Away!: Oil Cooler Gaskets Leaking — Oil and Coolant Loss, Swirl Flap Linkage Breaks — Plastic Joint Fails, Injector Seal Leaking — Soot Deposits and Diesel in Oil. Power: 190 PS.
E-Klasse (OM642, 2005–2009) — Stay Away!: Oil Cooler Gaskets Leaking — Oil and Coolant Loss, Swirl Flap Linkage Breaks — Plastic Joint Fails, Injector Seal Leaking — Soot Deposits and Diesel in Oil. Power: 224–231 PS.
E-Klasse (OM629, 2005–2009) — Stay Away!: Cylinder head warped -- coolant loss, NAG2 transmission at torque limit, Oil Cooler Leak in V-Section. Power: 314 PS.
E-Klasse (OM646, 2006–2009) — Be Careful: Dual-Mass Flywheel — Rivets Shear, Injectors Coked — Elevated Return Quantities, Wrong Belt Tensioner Fitted — Risk of Mix-Up. Power: 163–170 PS.
E-Klasse (M111, 1995–2003) — Be Careful: Head Gasket Ages and Leaks, Supercharger Magnetic Clutch Fails, Ignition Coils Wear Out Due to Neglected Spark Plugs. Power: 136 PS.
E-Klasse (M112, 1996–2003) — Be Careful: Camshaft Adjuster Leaks Oil into Wiring Harness, Intake Manifold Vacuum Hose Breaks, Valve Cover Gasket and Front Cover Gasket Leaking. Power: 193–204 PS.
E-Klasse (M111, 1997–2003) — Be Careful: Head Gasket Ages and Leaks, Supercharger Magnetic Clutch Fails, Ignition Coils Wear Out Due to Neglected Spark Plugs. Power: 163 PS.
E-Klasse (M112, 1997–2003) — Be Careful: Camshaft Adjuster Leaks Oil into Wiring Harness, Intake Manifold Vacuum Hose Breaks, Valve Cover Gasket and Front Cover Gasket Leaking. Power: 163–170 PS.
E-Klasse (M112, 1997–2003) — Be Careful: Camshaft Adjuster Leaks Oil into Wiring Harness, Intake Manifold Vacuum Hose Breaks, Valve Cover Gasket and Front Cover Gasket Leaking. Power: 220–224 PS.
E-Klasse (M113, 1997–2003) — Be Careful: Vibration Damper/Pulley — Rubber Hardens, Rear Crankshaft Seal Leaking, Engine Mounts Worn Prematurely. Power: 279 PS.
E-Klasse (M113, 1997–2003) — Be Careful: Vibration Damper/Pulley — Rubber Hardens, Rear Crankshaft Seal Leaking, Engine Mounts Worn Prematurely. Power: 354 PS.
E-Klasse (M112, 2002–2006) — Be Careful: Camshaft Adjuster Leaks Oil into Wiring Harness, Intake Manifold Vacuum Hose Breaks, Valve Cover Gasket and Front Cover Gasket Leaking. Power: 170–177 PS.
E-Klasse (M112, 2002–2006) — Be Careful: Camshaft Adjuster Leaks Oil into Wiring Harness, Intake Manifold Vacuum Hose Breaks, Valve Cover Gasket and Front Cover Gasket Leaking. Power: 224 PS.
E-Klasse (M113, 2002–2006) — Be Careful: Vibration Damper/Pulley — Rubber Hardens, Rear Crankshaft Seal Leaking, Engine Mounts Worn Prematurely. Power: 306 PS.
E-Klasse (M271, 2002–2009) — Stay Away!: Timing Chain Stretches Prematurely, Camshaft Adjuster Leaks — Oil in Wiring Harness, Camshaft Adjuster Leaks Oil into Connector. Power: 163 PS.
E-Klasse (M113K, 2003–2006) — Be Careful: Supercharger Bearings — Wear at High Mileage, Cooling System — Hoses and Thermostat Age, Supercharger Magnetic Clutch — Wear and Slipping. Power: 476 PS.
E-Klasse (M272, 2005–2009) — Stay Away!: Balance Shaft Sprocket Wears Prematurely, Timing Chain Stretches and Damages Timing, Camshaft Adjuster Leaks — Wiring Harness Contaminated. Power: 231 PS.
E-Klasse (M272, 2005–2009) — Stay Away!: Balance Shaft Sprocket Wears Prematurely, Timing Chain Stretches and Damages Timing, Camshaft Adjuster Leaks — Wiring Harness Contaminated. Power: 272 PS.
E-Klasse (M273, 2006–2009) — Stay Away!: Balance shaft sprocket — same weakness as M272, Camshaft Adjuster Leaking — Oil in Wiring Harness, Valve cover gaskets leaking on both sides. Power: 388 PS.
E-Klasse (M156, 2006–2009) — Stay Away!: Head Bolt Corrosion — Coolant in Combustion Chamber, Camshaft Wear — Cold-Start Lubrication Deficit, Camshaft Adjuster — Locking Plate Wears Out. Power: 514 PS.
What to watch out for with the Mercedes-Benz E-Klasse? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Mercedes-Benz E-Klasse W211 have? +
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Which engine is recommended? +
Which Mercedes-Benz E-Klasse W211 engine is the most fun? +
Is the Mercedes-Benz E-Klasse W211 worth buying used? +
What horsepower variants are available for the Mercedes-Benz E-Klasse W211? +
Last updated: February 2026 · All information without guarantee