Audi A5 F5
Weaknesses, engine ratings and buying advice
The Audi A5 F5 (2016–2024) on MLB-evo platform of A4 B9. Stiffer, lighter, more tech. Facelift 2019 with new MMI and 48V mild hybrid.
S-Tronic: Much better than predecessor, but oil change every 50,000–60,000 km remains mandatory. Mechatronics overhaul €1,800–5,000 if neglected.
AdBlue/SCR (diesel): All Euro 6 diesels — on failure, engine start lockout after 1,000 km. NOx sensor €200–600, tank complete up to €4,000.
Rear axle recall (2019–2021): Control arm nuts out of spec → check recall 42L1.
Virtual Cockpit: Flicker/blackout possible. Specialist from €500, new unit over €2,800.
LED Matrix headlights: Non-repairable, full replacement €1,500–5,000 per side.
Test drive: S-Tronic pull-away behaviour. AdBlue level (diesel). Test Virtual Cockpit. Rear axle recall status.
2026 market: Pre-facelift from €25,000–30,000. Facelift from €28,000–38,000. S5 from €40,000.
Insider pick: 40 TDI Sportback facelift from 2020, S-Tronic — after control arm improvement, with stainless exhaust.
450 PS
RS5 · Benzin
RS5 Coupé — same BiTurbo V6, better proportions
Fun to Drive!150 PS
1.4L TFSI Benzin
6 weaknesses
Good Choice450 PS
4.2L FSI V8 Benzin
9 weaknesses
Stay Away!Body Variants
The Audi A5 F5 is available as Coupé and Convertible — choose your body type for specific insurance data:
Generations
Engine Overview
The Audi A5 F5 is available with 13 engine variants — from 136 to 450 hp. 2 variants had engine changes — the model year is crucial.
EA288 with 110 kW for longitudinal installation in B9/F5. Identical basic technology to CRLB, adapted for the MLB platform. Reliable and economical.
- !! Camshaft Oil Seal Leaks onto Timing Belt from 120,000 km
Defective camshaft oil seal allows engine oil to run onto the timing belt. Oil destroys the belt rapidly — when the belt breaks, instant total engine loss results.
Symptoms: Oil film on timing belt cover, oil smell, with advanced damage belt noises, dropping oil level - !! Timing Belt: Interval NOT Maintenance-Free from 130,000 km
Timing belt is, contrary to earlier marketing claims, not maintenance-free. Recommended replacement every 120,000–150,000 km. On belt break: immediate engine damage with valve contact.
Symptoms: No warning on belt break — sudden engine stop - !! Turbocharger Bearing Damage from Oil Starvation from 180,000 km
Turbocharger bearings wear prematurely with neglected maintenance or poor oil quality. Do not shut engine off immediately after driving — turbo needs cooldown time.
Symptoms: Whistling or grinding noise from turbo area, blue exhaust cloud, power loss, oil in charge air hose
+ 2 more engine weaknesses + vehicle weaknesses
EA288 generation 2.0-litre diesel as successor to the EA189. Fundamentally more mature and reliable than its predecessor, but EGR valve and DPF are critical weak points with short-trip use. With correct service intervals, mileages over 300,000 km are realistic.
- !! Turbocharger Bearing Damage from 200,000 km
At high mileage or from DPF-related oil contamination, turbocharger bearings can wear. Typical BorgWarner turbo on the DETA shows problems from around 200,000 km.
Symptoms: Whistling or howling noises, power loss, blue smoke, oil in intake pipe, fault code P0299 - !! Camshaft Seal Leaks Oil onto Timing Belt from 120,000 km
A defective camshaft shaft seal allows oil to escape onto the timing belt, significantly shortening its service life. Detected too late, the belt breaks and causes engine damage.
Symptoms: Oil spots in the timing belt area, belt appears shiny/oily, whistling from the belt drive - !! Early Water Pump Failure from 60,000 km
Early EA288 engines up to production date September 2014 had a faulty water pump with a defective control valve (TPI 2041955). Coolant temperature rises to up to 130°C.
Symptoms: Coolant temperature exceeds 120°C, red temperature warning light, coolant loss with no visible external leak
+ 2 more engine weaknesses + vehicle weaknesses
EA288 evo for the facelift from 2019 with 100 kW. Twin-dosing emissions treatment for Euro 6d-TEMP. Most economical diesel in the B9 range.
- !! EGR Cooler Cracking and Coolant Ingress from 90,000 km
EGR cooler develops thermally induced hairline cracks. Coolant enters the intake tract — if ignored, hydrolock is possible. Repair cost at Audi workshops can reach €3,500.
Symptoms: Gradual coolant consumption with no external leak, white smoke, sweet smell, fault code P200200, limp mode. - !! Oil Pump Drive Belt in Wet-Belt System Vulnerable from 150,000 km
The wet belt also drives the oil pump. Abrasive soot in the oil (from EGR) accelerates belt wear. Belt failure causes immediate oil pressure loss and engine damage.
Symptoms: Engine warning light, oil pressure drop, loud knocking from the engine block on belt failure. No noticeable warning possible beforehand. - !! DPF Over-Saturation from Incomplete Regeneration from 120,000 km
High-performance TDI generates more exhaust particles. DPF regeneration requires extended driving. Short-trip use leads to oversaturation with secondary turbocharger damage from elevated back-pressure.
Symptoms: Warning indicator 'Particulate filter full', power reduction, increased fuel consumption, limp mode, rough idle.
+ 2 more engine weaknesses + vehicle weaknesses
V6 diesel with 160 kW and enormous torque. Excellent long-distance engine. Timing chain — watch the tensioner. Service AdBlue system regularly.
- !! Camshaft Seized — Material Defect from 80,000 km
Certain EA897 variants (3.0 TDI, 2014–2017) show a material defect on the camshafts. Cam lobe surfaces crack and valves no longer open correctly. Repair costs €3,500–20,000.
Symptoms: Ticking / knocking when cold, rough running, power loss, MIL, grinding noise in head - !! Timing Chain — 4 Chains, Gearbox Side, High Cost from 150,000 km
The 3.0 TDI CNHA uses four thin timing chains (one per cam bank, plus connector and oil pump chain), all on the gearbox side. Replacement costs €3,000–5,000 and requires 15–20 labour hours.
Symptoms: Rattling on cold start, camshaft control fault codes, oil pressure drop - ! EGR Valve Coked — Diesel Power Loss from 100,000 km
The EGR system on the 3.0 TDI CNHA cokes up with heavy urban use. A failed EGR valve and coked EGR cooler module cause power loss and elevated emissions. Cleaning or replacement required.
Symptoms: Power loss, black smoke, stumbling under acceleration, increased consumption
+ 2 more engine weaknesses + vehicle weaknesses
EA288 evo with 147 kW for B9 facelift. Twin-Dosing (dual SCR catalysts) for stricter emissions standards. Technically mature, high mileages expected.
- !! EGR cooler cracks and coolant loss from 100,000 km
EGR cooler develops hairline cracks — coolant enters the exhaust tract. Slow, silent coolant loss without visible leaks is the main symptom. Hydro-lock risk if left unaddressed.
Symptoms: Gradual coolant consumption, white smoke, sweet exhaust smell inside cabin, engine warning with fault code P200200. - !! Wet timing belt with sensitive water pump from 130,000 km
Wet-running timing belt runs in an oil bath. Water pump can fail before the official service interval and contaminate the belt. Recommendation: early combined replacement.
Symptoms: Whistling from engine bay, sudden overheating, coolant loss, belt fragments visible in oil at oil change. - !! DPF regeneration fails on short trips from 120,000 km
EA288 evo needs long-distance runs for complete DPF regeneration. Frequent incomplete regenerations lead to oversaturation. Consequential turbo damage from back-pressure is possible.
Symptoms: Warning 'particulate filter full', power reduction, increased consumption. Engine runs rough for a short time after idle phase.
+ 2 more engine weaknesses + vehicle weaknesses
The first diesel with an S badge in history — and that is not a marketing claim, it is a technical statement. The EA897 evo delivers 700 Nm across a wide band, and the electric compressor (EAV) closes the gap between throttle input and turbo boost build-up in under 250 milliseconds. The result is a diesel with no perceptible turbo lag — when powering out of corners or overtaking, the engine responds immediately because the EAV is already compressing air with up to 7 kW before the exhaust turbo gets up to speed. The 48V system carries not just the EAV but also the belt starter-generator for recuperation and coasting. On the maintenance side: camshaft fractures are the known catastrophic failure pattern of this EA897 generation. Check service history carefully before purchase and ask for evidence of completed TPI measures. Oil pressure drop at idle is by design due to the electronically controlled oil pump — not a fault, but worth noting if it shows up under load.
- !! Low oil pressure from variable oil pump from 150,000 km
The ECU-controlled oil pump reduces pressure at idle to approx. 1.0–1.4 bar. At high motorway oil temperatures with bearing wear, this pressure is insufficient — con-rod bearings seize from 150,000 km.
Symptoms: Oil pressure warning at idle or on country roads, knocking noises, in severe cases engine failure - !! Camshaft breakage (material defect) from 80,000 km
All 272-hp variants built before January 2017 contained faulty camshafts. Tooth flank noise and fractures are possible; Audi acknowledges the problem, goodwill depends on mileage.
Symptoms: Clattering or ticking from camshafts even after brief warm-up, rough running, in severe cases sudden engine stall - !! Timing chain drive worn (4-chain system) from 160,000 km
The EA897 uses four timing chains — one per cylinder bank, one connecting chain and one for the oil pump. All chains, tensioners and guides must be renewed together.
Symptoms: Rattling on cold start, metallic knock on throttle, engine light with camshaft faults
+ 2 more engine weaknesses + vehicle weaknesses
The first diesel with an S badge in history — and that is not a marketing claim, it is a technical statement. The EA897 evo delivers 700 Nm across a wide band, and the electric compressor (EAV) closes the gap between throttle input and turbo boost build-up in under 250 milliseconds. The result is a diesel with no perceptible turbo lag — when powering out of corners or overtaking, the engine responds immediately because the EAV is already compressing air with up to 7 kW before the exhaust turbo gets up to speed. The 48V system carries not just the EAV but also the belt starter-generator for recuperation and coasting. On the maintenance side: camshaft fractures are the known catastrophic failure pattern of this EA897 generation. Check service history carefully before purchase and ask for evidence of completed TPI measures. Oil pressure drop at idle is by design due to the electronically controlled oil pump — not a fault, but worth noting if it shows up under load.
- !! Low oil pressure from variable oil pump from 150,000 km
The ECU-controlled oil pump reduces pressure at idle to approx. 1.0–1.4 bar. At high motorway oil temperatures with bearing wear, this pressure is insufficient — con-rod bearings seize from 150,000 km.
Symptoms: Oil pressure warning at idle or on country roads, knocking noises, in severe cases engine failure - !! Camshaft breakage (material defect) from 80,000 km
All 272-hp variants built before January 2017 contained faulty camshafts. Tooth flank noise and fractures are possible; Audi acknowledges the problem, goodwill depends on mileage.
Symptoms: Clattering or ticking from camshafts even after brief warm-up, rough running, in severe cases sudden engine stall - !! Timing chain drive worn (4-chain system) from 160,000 km
The EA897 uses four timing chains — one per cylinder bank, one connecting chain and one for the oil pump. All chains, tensioners and guides must be renewed together.
Symptoms: Rattling on cold start, metallic knock on throttle, engine light with camshaft faults
+ 2 more engine weaknesses + vehicle weaknesses
Identical power output to CZEA (110 kW), different application for longitudinal installation. Same robust EA211 technology with cam belt.
- !! Timing belt — critical replacement interval from 160,000 km
The CZDA uses a timing belt rather than a chain. Manufacturer recommends replacement every 60,000 km. A snapped belt inevitably causes valve damage — engine failure is then unavoidable.
Symptoms: No prior warning — rupture occurs without announcement. Preventively: squealing or fluttering belt on cold start. - !! Camshaft adjuster leaking from 90,000 km
On the CZDA, the solenoid valve of the camshaft adjuster is prone to leaks and functional failure. Known weak point of the EA211 series, in some cases subject to recall.
Symptoms: Engine oil spots under vehicle (left engine side), engine warning light, EPC light, power drop on cold start, rough running noise. - !! Water pump — premature wear from 80,000 km
Premature water pump wear with regulator slide failure, especially in production years up to September 2014. Can lead to coolant temperatures above 130°C.
Symptoms: Coolant temperature warning light, overheating indication, coolant loss
+ 3 more engine weaknesses + vehicle weaknesses
EA888 Gen3B with improved piston design and strengthened timing chain over predecessors. Oil pump remains a structural weak point across the entire EA888 family. Significantly more reliable than Gen1/2 with correct oil change intervals and quality oil. Direct injection promotes intake valve carbon build-up at medium mileages.
- !! Oil pump — pressure deficit at idle from 80,000 km
The Gen3B variable oil pump delivers insufficient oil pressure at low rpm. Camshaft phaser rattling and premature chain wear result. Particularly problematic in short-trip urban driving.
Symptoms: Rattling/knocking after cold start, oil pressure warning at idle, camshaft phaser fault codes - !! Recall: belt starter-generator fire risk
Recalls 27H2/27H8 (2020): moisture ingress into the belt starter-generator (48V MHEV system) causes short circuits and overheating with fire risk. ~530,000 vehicles worldwide (A4, A5, A6, A7, Q5, production years 2017–2020). Audi advised against garage parking until repair.
Symptoms: Sequential electrical fault messages, vehicle shuts down, in worst case smoke / fire - !! Timing chain — cold-start rattle from pressure drop from 100,000 km
Early A4 B9 (2016–2017) with CYRB show cold-start rattling from chain tensioner oil pressure loss overnight. Oil pressure takes 2–3 seconds to build; tensioner does not tension the chain fast enough. Chain inspection recommended from ~100,000 km.
Symptoms: Brief rattling on cold start (2–5 sec), P0016/P0017 after extended standing, metallic clattering
+ 5 more engine weaknesses + vehicle weaknesses
EA888 Gen3B facelift with 140 kW. Particulate filter and WLTP optimisation standard. Proven technology with few known issues.
- !! Recall: Belt Starter Generator Fire Risk
Recall 27H2 (2020): moisture ingress into BSG causes short circuits and fire risk. Affects A4, A5, A6, A7, Q5 (production years 2017–2020) with 48V mild hybrid. ~530,000 vehicles worldwide, approx. 17,769 in Germany.
Symptoms: Electrical fault messages, vehicle breaks down, smoke development possible - !! Timing Chain Elongated from 100,000 km
DKZA timing chain stretches from ~100,000 km. Gen3B with revised tensioner, but fundamentally the same system as Gen3. Regular oil changes with quality oil substantially reduce wear.
Symptoms: Rattling on cold start, P0016/P0017, metallic chain noise - !! Combined Water Pump / Thermostat Housing Leaking from 80,000 km
Integrated plastic housing for water pump and thermostat cracks from ageing and thermal cycling. Coolant loss, typically from 60,000–100,000 km. Typical Gen3B issue.
Symptoms: Coolant loss, overtemperature indicator, coolant smell, weak heater
+ 4 more engine weaknesses + vehicle weaknesses
EA888 Gen3B with 150 kW and 48V mild hybrid. Belt starter-generator assists during launch and enables coasting. Technology is mature.
- !! Recall: Belt Starter Generator Fire Risk
Recall 27H2 (2020): BSG absorbs moisture, causing short circuits and fire risk. Affects A4, A5, A6, A7, Q5 with 48V mild hybrid, production years 2017–2020. Have replacement generator installed by dealer.
Symptoms: Electrical fault messages, vehicle breakdown, in extreme cases fire - !! Combined Cooling Housing Leaking from 80,000 km
Integrated water pump/thermostat housing made of plastic cracks from ageing. Coolant loss and overtemperature possible from ~60,000–100,000 km. Standard issue on all Gen3B engines.
Symptoms: Coolant loss, overtemperature warning, coolant smell, poor heater performance - !! Timing Chain Elongated from 110,000 km
Timing chain stretches from ~100,000 km. Gen3B with revised tensioner. Less thermal load on the 150 hp variant, but fundamentally the same chain system weakness.
Symptoms: Rattling on cold start, P0016/P0017 fault codes
+ 3 more engine weaknesses + vehicle weaknesses
EA888 Gen3B (265 PS) in the B9 facelift. Significantly improved oil consumption over Gen2, but electric water pump with plastic housing remains a known weak point. Direct injection causes intake valve carbon build-up. Recall 27H2 for belt starter-generator (fire risk) affects build years 2017–2020.
- !! Recall: 48V Belt Starter Generator Fire Risk
Recall 27H2/27H8 (2020): moisture ingress into the 48V BSG causes short circuits and fire risk. The 265 hp variant of the A4 B9 (45 TFSI) is one of the primary affected engines. ~530,000 vehicles worldwide. Audi advised against parking in garages.
Symptoms: Sequential electrical fault messages, vehicle comes to a standstill, smoke development possible - !! Oil Pump — Pressure Deficit at Idle from 80,000 km
Variable oil pump delivers insufficient oil pressure at low rpm. At 265 hp and high engine load, the risk of camshaft and chain wear is increased.
Symptoms: Ticking after cold start, oil pressure warning, camshaft phaser fault codes - !! 48V MHEV System Complexity — BSG Follow-Up Defects from 80,000 km
The 48V mild hybrid system with belt starter generator (BSG) and 48V lithium-ion battery adds an extra complexity layer. Beyond the recall, BSG bearings can wear and the 48V battery can deep-discharge. Warranty extended to 7 years per manufacturer.
Symptoms: Electrical fault messages, auto-stop function inoperative, comfort functions fail, 48V deep discharge
+ 4 more engine weaknesses + vehicle weaknesses
The 2.9 TFSI V6 BiTurbo was developed in collaboration with Porsche — related to the engine in the Boxster/Cayman GTS and Macan Turbo. Twin-scroll turbos in the hot-V, 450 PS and 600 Nm from 1,750 rpm. Central wear issue: rocker arm bearings in the cylinder head. Early batches (before GP1 production code, roughly up to mid-2019) had rocker arms with bearing rollers that were too small — risk of fracture, rollers falling into the sump. Improved from GP1 onwards. When buying an early RS4/RS5: check the production code. Preventive retrofit is possible — parts cost is manageable, but engine removal is required. Technical detail: the engine runs the Miller cycle with extra-long intake cam profiles and high compression — the turbos have to compensate for this thermodynamic trick, which makes their calibration more demanding. Direct injection at 250 bar injection pressure. Timing chain is quad-chain, all four camshafts chain-driven — keep on top of oil changes, longlife intervals are a bad idea here.
- !! Rocker Arm Bearing Roller Ejection from 60,000 km
In the 2.9 TFSI BiTurbo (DECA), rocker arm bearing rollers can fall out of the cylinder head and end up in the oil pan. Early production years (up to approx. 2019) are especially affected. A revised design with thicker bearing rollers was introduced. No official recall, but serious consequences are possible.
Symptoms: Knocking or rattling noises from the cylinder head, metal particles in the engine oil, sudden power loss, engine fault codes - !! Intake Valve Carbon Buildup — BiTurbo Direct Injection from 50,000 km
As a pure direct injector without port injection, the EA888 DECA builds pronounced soot deposits on the intake valves. Crankcase ventilation oil mist and EGR gases thermally bond to the valve heads. Cleaning from 40,000–60,000 km onwards is recommended.
Symptoms: Creeping power loss, stumbling under partial load, rougher idle, increased fuel consumption especially in city traffic - !! Elevated Oil Consumption — TFSI High-Performance Engine from 80,000 km
The 2.9 TFSI DECA shows elevated oil consumption with spirited driving due to high thermal loads and boost pressures. Coked piston rings worsen the problem. Regular oil level checks between service intervals are essential on the RS4/RS5 B9.
Symptoms: Dropping oil level between oil changes, occasional blue smoke under hard acceleration, light oil smell
+ 2 more engine weaknesses + vehicle weaknesses
The 2.9 TFSI V6 BiTurbo was developed in collaboration with Porsche — related to the engine in the Boxster/Cayman GTS and Macan Turbo. Twin-scroll turbos in the hot-V, 450 PS and 600 Nm from 1,750 rpm. Central wear issue: rocker arm bearings in the cylinder head. Early batches (before GP1 production code, roughly up to mid-2019) had rocker arms with bearing rollers that were too small — risk of fracture, rollers falling into the sump. Improved from GP1 onwards. When buying an early RS4/RS5: check the production code. Preventive retrofit is possible — parts cost is manageable, but engine removal is required. Technical detail: the engine runs the Miller cycle with extra-long intake cam profiles and high compression — the turbos have to compensate for this thermodynamic trick, which makes their calibration more demanding. Direct injection at 250 bar injection pressure. Timing chain is quad-chain, all four camshafts chain-driven — keep on top of oil changes, longlife intervals are a bad idea here.
- !! Rocker Arm Bearing Roller Ejection from 60,000 km
In the 2.9 TFSI BiTurbo (DECA), rocker arm bearing rollers can fall out of the cylinder head and end up in the oil pan. Early production years (up to approx. 2019) are especially affected. A revised design with thicker bearing rollers was introduced. No official recall, but serious consequences are possible.
Symptoms: Knocking or rattling noises from the cylinder head, metal particles in the engine oil, sudden power loss, engine fault codes - !! Intake Valve Carbon Buildup — BiTurbo Direct Injection from 50,000 km
As a pure direct injector without port injection, the EA888 DECA builds pronounced soot deposits on the intake valves. Crankcase ventilation oil mist and EGR gases thermally bond to the valve heads. Cleaning from 40,000–60,000 km onwards is recommended.
Symptoms: Creeping power loss, stumbling under partial load, rougher idle, increased fuel consumption especially in city traffic - !! Elevated Oil Consumption — TFSI High-Performance Engine from 80,000 km
The 2.9 TFSI DECA shows elevated oil consumption with spirited driving due to high thermal loads and boost pressures. Coked piston rings worsen the problem. Regular oil level checks between service intervals are essential on the RS4/RS5 B9.
Symptoms: Dropping oil level between oil changes, occasional blue smoke under hard acceleration, light oil smell
+ 2 more engine weaknesses + vehicle weaknesses
With the B9 generation Audi swapped the supercharger for a twin-scroll turbo — and built in a character compromise. The EA839 runs the Miller cycle with late intake valve closing and 11.2:1 compression, making it more efficient on paper than its predecessor. In practice: a broader rev band (500 Nm from 1,300 to 4,500 rpm), but the immediate supercharger feel is gone. The turbo sits in the hot-V between the cylinder banks — keeping the engine bay compact, but demanding thermally. Known weak points: the oil filter housing in the hot section tends to leak, and the thermostat shares its housing with the water pump — if one fails, both usually get replaced. Misfire on cylinder 6 starts appearing around 100,000 km, often from aged spark plugs or faulty ignition coils. The timing chain sits on the engine side, not the gearbox side — a genuine advantage over some contemporaries.
- !! Rocker Arm Roller Failure (GP0 Production)
Early CWGD units with P-code GP0 (up to production date 06.08.2018) have poor-quality rocker arm rollers. The small bearing rollers can fall out and end up in the oil sump — camshaft and piston damage possible.
Symptoms: Combustion misfire, engine fault light, rough running, clattering noise from cylinder head. - !! Water Pump Internal Failure with Coolant in Vacuum System from 80,000 km
The EA839 water pump is vacuum-controlled. On internal failure, coolant enters the vacuum system and spreads to further engine components. The old 4-bolt pulley is the prime suspect — identifiable if original pump still fitted.
Symptoms: Coolant warning light, coolant loss without external leakage, P0299 (boost pressure too low), 'drivetrain fault', 12V battery no longer charging. - !! 48V Mild Hybrid System Fault (from 2019 Facelift)
The belt starter-generator (BSG) and the 48V battery can fail, especially on vehicles before 2021 without the protective cover over the control unit. Diagnosis and calibration required after replacement.
Symptoms: '48V system fault' in display, start-stop disabled, no recuperation, rough or delayed starting, limp mode.
+ 5 more engine weaknesses + vehicle weaknesses
With the B9 generation Audi swapped the supercharger for a twin-scroll turbo — and built in a character compromise. The EA839 runs the Miller cycle with late intake valve closing and 11.2:1 compression, making it more efficient on paper than its predecessor. In practice: a broader rev band (500 Nm from 1,300 to 4,500 rpm), but the immediate supercharger feel is gone. The turbo sits in the hot-V between the cylinder banks — keeping the engine bay compact, but demanding thermally. Known weak points: the oil filter housing in the hot section tends to leak, and the thermostat shares its housing with the water pump — if one fails, both usually get replaced. Misfire on cylinder 6 starts appearing around 100,000 km, often from aged spark plugs or faulty ignition coils. The timing chain sits on the engine side, not the gearbox side — a genuine advantage over some contemporaries.
- !! Rocker Arm Roller Failure (GP0 Production)
Early CWGD units with P-code GP0 (up to production date 06.08.2018) have poor-quality rocker arm rollers. The small bearing rollers can fall out and end up in the oil sump — camshaft and piston damage possible.
Symptoms: Combustion misfire, engine fault light, rough running, clattering noise from cylinder head. - !! Water Pump Internal Failure with Coolant in Vacuum System from 80,000 km
The EA839 water pump is vacuum-controlled. On internal failure, coolant enters the vacuum system and spreads to further engine components. The old 4-bolt pulley is the prime suspect — identifiable if original pump still fitted.
Symptoms: Coolant warning light, coolant loss without external leakage, P0299 (boost pressure too low), 'drivetrain fault', 12V battery no longer charging. - !! 48V Mild Hybrid System Fault (from 2019 Facelift)
The belt starter-generator (BSG) and the 48V battery can fail, especially on vehicles before 2021 without the protective cover over the control unit. Diagnosis and calibration required after replacement.
Symptoms: '48V system fault' in display, start-stop disabled, no recuperation, rough or delayed starting, limp mode.
+ 5 more engine weaknesses + vehicle weaknesses
With the B9 generation Audi swapped the supercharger for a twin-scroll turbo — and built in a character compromise. The EA839 runs the Miller cycle with late intake valve closing and 11.2:1 compression, making it more efficient on paper than its predecessor. In practice: a broader rev band (500 Nm from 1,300 to 4,500 rpm), but the immediate supercharger feel is gone. The turbo sits in the hot-V between the cylinder banks — keeping the engine bay compact, but demanding thermally. Known weak points: the oil filter housing in the hot section tends to leak, and the thermostat shares its housing with the water pump — if one fails, both usually get replaced. Misfire on cylinder 6 starts appearing around 100,000 km, often from aged spark plugs or faulty ignition coils. The timing chain sits on the engine side, not the gearbox side — a genuine advantage over some contemporaries.
- !! Rocker Arm Roller Failure (GP0 Production)
Early CWGD units with P-code GP0 (up to production date 06.08.2018) have poor-quality rocker arm rollers. The small bearing rollers can fall out and end up in the oil sump — camshaft and piston damage possible.
Symptoms: Combustion misfire, engine fault light, rough running, clattering noise from cylinder head. - !! Water Pump Internal Failure with Coolant in Vacuum System from 80,000 km
The EA839 water pump is vacuum-controlled. On internal failure, coolant enters the vacuum system and spreads to further engine components. The old 4-bolt pulley is the prime suspect — identifiable if original pump still fitted.
Symptoms: Coolant warning light, coolant loss without external leakage, P0299 (boost pressure too low), 'drivetrain fault', 12V battery no longer charging. - !! 48V Mild Hybrid System Fault (from 2019 Facelift)
The belt starter-generator (BSG) and the 48V battery can fail, especially on vehicles before 2021 without the protective cover over the control unit. Diagnosis and calibration required after replacement.
Symptoms: '48V system fault' in display, start-stop disabled, no recuperation, rough or delayed starting, limp mode.
+ 5 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Recall: Electric Water Pump Fire Risk (2.0 TFSI) Around 1.16 million vehicles with 2.0 TFSI (model years 2012–2017) were recalled. The electric auxiliary water pump can overheat, cause a short circuit and in extreme cases start a fire. Symptoms: Engine temperature check warning, unexplained coolant loss, smoke in worst case | Low | |
| Recall: rear axle control arm nuts out of spec Control arm nuts on rear axle in 2019–2021 builds may not meet torque specification. If nut fails: uncontrolled rear axle movement. Recall 42L1, free repair. Symptoms: No warning — preventive recall. Clunking from rear as possible late symptom. | Low | |
| AdBlue/SCR system — engine lockout on failure (diesel) All Euro 6 diesels have SCR. On failure, engine start lockout after ~1,000 km. NOx sensor €200–600, urea pump €1,000–1,500, AdBlue tank complete up to €4,000. Symptoms: AdBlue warning, countdown to engine lockout, NOx sensor/dosing valve fault code from 80,000 km | High |
Test Reports
Vehicle inspection (HU)
Few defects, good results for the age bracket
2024Top Reported Issues
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Known Problems and Issues +
A total of 114 weaknesses have been documented for the Audi A5 F5 (2016–2023) — 99 engine-related and 15 vehicle-related. One problem engine: CFSA (4.2L FSI V8). Typical issues affect Other, Gearbox, Electronics, Body. Considered reliable: CZDA (1.4L TFSI).
A5 (DFGA, 2016–2019) — Be Careful: Camshaft Oil Seal Leaks onto Timing Belt, Timing Belt: Interval NOT Maintenance-Free, Turbocharger Bearing Damage from Oil Starvation. Power: 150 PS.
A5 (DETA, 2016–2019) — Be Careful: Turbocharger Bearing Damage, Camshaft Seal Leaks Oil onto Timing Belt, Early Water Pump Failure. Power: 190 PS.
A5 (CNHA, 2016–2019) — Be Careful: Camshaft Seized — Material Defect, Timing Chain — 4 Chains, Gearbox Side, High Cost, EGR Valve Coked — Diesel Power Loss. Power: 218 PS.
A5 (DKGE, 2019–2024) — Be Careful: EGR Cooler Cracking and Coolant Ingress, Oil Pump Drive Belt in Wet-Belt System Vulnerable, DPF Over-Saturation from Incomplete Regeneration. Power: 136 PS.
A5 (CDMD, 2010–2017) — Be Careful: Internal Intercooler Leaking, Chain Tensioner Rattle on Cold Start, Coolant Pump Failure. Power: 272 PS.
A5 (CFSA, 2010–2017) — Stay Away!: Timing Chain on Gearbox Side — Most Expensive RS4/RS5 Problem, Con Rod Bearings at High RPM — RS4/RS5 Revs to 8,250 rpm, Camshaft Adjusters — Heavily Stressed at High RPM. Power: 450 PS.
A5 (CNCD, 2012–2017) — Be Careful: Oil Pump Delivers Insufficient Pressure at Idle, Chain Stretch and Tensioner Failure, Hydraulic Chain Tensioners Lose Oil Pressure. Power: 224–230 PS.
A5 (CYRB, 2016–2019) — Be Careful: Oil pump — pressure deficit at idle, Recall: belt starter-generator fire risk, Timing chain — cold-start rattle from pressure drop. Power: 190 PS.
A5 (CWGD, 2016–2018) — Be Careful: Rocker Arm Roller Failure (GP0 Production), Water Pump Internal Failure with Coolant in Vacuum System, 48V Mild Hybrid System Fault (from 2019 Facelift). Power: 354 PS.
A5 (DECA, 2017–2024) — Be Careful: Rocker Arm Bearing Roller Ejection, Intake Valve Carbon Buildup — BiTurbo Direct Injection, Elevated Oil Consumption — TFSI High-Performance Engine. Power: 450 PS.
A5 (CWGD, 2016–2023) — Be Careful: Rocker Arm Roller Failure (GP0 Production), Water Pump Internal Failure with Coolant in Vacuum System, 48V Mild Hybrid System Fault (from 2019 Facelift). Power: 354 PS.
A5 (DKZA, 2019–2023) — Be Careful: Recall: Belt Starter Generator Fire Risk, Timing Chain Elongated, Combined Water Pump / Thermostat Housing Leaking. Power: 190 PS.
A5 (DKYA, 2020–2023) — Be Careful: Recall: Belt Starter Generator Fire Risk, Combined Cooling Housing Leaking, Timing Chain Elongated. Power: 204 PS.
A5 (DKWB, 2020–2023) — Be Careful: Recall: 48V Belt Starter Generator Fire Risk, Oil Pump — Pressure Deficit at Idle, 48V MHEV System Complexity — BSG Follow-Up Defects. Power: 245–252 PS.
A5 (DTUA, 2019–2023) — Be Careful: EGR cooler cracks and coolant loss, Wet timing belt with sensitive water pump, DPF regeneration fails on short trips. Power: 204 PS.
A5 (DTPA, 2019–2024) — Be Careful: Low oil pressure from variable oil pump, Camshaft breakage (material defect), Timing chain drive worn (4-chain system). Power: 341–347 PS.
What to watch out for with the Audi A5? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Audi A5 F5 have? +
What should I look for when buying a used Audi A5 F5? +
Which engine is recommended? +
Which Audi A5 F5 engine is the most reliable? +
Which Audi A5 F5 engine is the most fun? +
Is the Audi A5 F5 worth buying used? +
What horsepower variants are available for the Audi A5 F5? +
Last updated: February 2026 · All information without guarantee