Citroën C5 2
Weaknesses, engine ratings and buying advice
The Citroën C5 II (2008–2017) is the last proper French executive car — the one with Hydractive III+ hydropneumatic suspension that makes every other car in the segment feel like it was assembled on a trampoline. That suspension is simultaneously the defining reason to buy a C5 and the defining reason most people shouldn’t.
Here’s the deal: Hydractive III+ uses nitrogen-filled spheres instead of conventional springs and dampers. When they’re fresh, the ride quality is other-worldly — long-distance comfort that makes a Mercedes E-Class feel agricultural. When the spheres lose their gas charge (and they all do, typically every 80,000–120,000 km), the car progressively turns into a pogo stick. Sphere replacement for all seven units runs $1,500–3,500 at a specialist. The hydraulic pump, pressure accumulator, and fluid are additional wear items. Budget $350–900 for the pump alone. Neglected Hydractive cars develop diagonal lean, fail to self-level, and ultimately destroy the suspension struts. If the car sits unevenly after standing overnight, the spheres are done.
Engine choice matters enormously. The DW10-150 2.0 HDi (110 kW) is the engine to buy — PSA’s workhorse diesel, torquey, economical at 5.5–6.5 L/100 km, proven to 300,000+ km with timing belt changes every 160,000 km. Reliable in ways that make the rest of the car look fragile. The UHZ 3.0 HDi V6 diesel (177 kW) is a genuinely refined unit — smooth, effortless, but maintenance costs are nearly double (timing belt access alone is an engine-out job on some variants). Only buy one with full dealer history.
Avoid the EP6-THP 1.6 turbo petrol. The timing chain stretches, the thermostat housing cracks, the turbo oil feed line cokes up, and when the chain skips a tooth the engine is scrap. This is a PSA-wide problem (Peugeot 207/308, MINI Cooper S), not C5-specific, but in a heavy executive car the 1.6 is working harder and fails sooner. The ES9 3.0 V6 petrol is rare, thirsty (12–14 L/100 km), and exists mainly as a curiosity.
DPF issues plague all diesels on short-trip duty — forced regeneration cycles push unburnt fuel into the oil, diluting it. Oil level rises visibly on the dipstick. Regular motorway runs are mandatory for any C5 diesel.
Test-drive checklist: Park the car for 30 minutes, then check ride height — does it sit level or lean to one side? Drive over speed bumps at 30 km/h — harsh thumping = dead spheres. Cold start the diesel — excessive smoke or rattle = injector or DPF trouble. Check the hydraulic fluid level and colour (should be green LDS, not brown). Test all electrical functions — the C5’s electronics are complex and age poorly.
2026 market: 2.0 HDi from $3,500–6,500. 3.0 V6 HDi $5,500–11,000. EP6 petrol $3,000–5,000 (cheap for a reason). Insider pick: DW10-150 2.0 HDi, 2010+, with documented sphere replacement — the car Citroën should still be making. Fresh spheres transform the experience. Without documentation of sphere service, walk away regardless of price.
211 PS
C5 · Benzin
The French king of cruisers
Legendary!140–211 PS
1.6L THP Benzin
7 weaknesses
Stay Away!Body Variants
The Citroën C5 2 is available as Sedan and Wagon — choose your body type for specific insurance data:
Generations
Engine Overview
The Citroën C5 2 is available with 10 engine variants — from 126 to 241 hp.
Top diesel (133 kW) with SCR catalytic converter and AdBlue for Euro 6 compliance. Very punchy with high torque, usually paired with the EAT8 automatic. Ideal for heavy SUVs and long-distance vehicles. Timing belt replacement with water pump should be planned every 160,000 km. Injectors, VGT turbocharger and AdBlue system (NOx sensor, pump) are the main wear items. Oil changes strictly per specification.
- !! AdBlue/SCR system — tank and pump failure from 80,000 km
BlueHDi engines with SCR urea injection suffer from faulty AdBlue tanks and pumps, especially in winter. The faulty tank unit (pump and sensor integrated) cannot be replaced separately — cost €1,000–2,000. Engine will not start after failure.
Symptoms: AdBlue warning light, engine warning light, start lockout after countdown warning, fault codes. - !! Timing belt — interference engine requiring special tooling from 100,000 km
The BlueHDi DW10F variant is an interference engine. Timing belt replacement requires specific PSA special tools (NTN-SNR kit). Incorrect installation leads to engine damage. Interval: 5 years or 100,000 km.
Symptoms: Sudden engine stall, metallic noises, no restart on snap. - !! DPF — regeneration failure and oil dilution from 100,000 km
BlueHDi DPF regenerates actively via post-injection. With insufficient running time, unburnt fuel passes into the engine oil (oil dilution). Regular oil level checks and motorway drives for regeneration are mandatory.
Symptoms: DPF warning light, oil level rising, engine warning light, strong diesel smell in oil.
+ 3 more engine weaknesses + vehicle weaknesses
Mid-range output of the 2.0 HDi (93 kW) with good torque and sufficient pull for midsize cars and SUVs. Belt-driven timing with a 240,000 km or 10-year interval — always replace the water pump at the same time. Injectors and the variable-geometry turbocharger are the typical wear items. DPF regeneration is problematic on short trips. With regular maintenance, a reliable long-distance engine.
- !! Timing belt — interference engine with high damage risk from 100,000 km
Interference engine: timing belt snap causes piston-to-valve contact and total engine destruction. Recommended interval 80,000–120,000 km/5 years. C4-specific: tight packaging in some configurations makes visual belt inspection difficult.
Symptoms: Sudden engine stall, no restart, metallic noise on snap. - !! Common rail injectors — wear and leakage from 120,000 km
Injectors lose sealing rings and develop leaks or internal wear with elevated return flow. Rail pressure drop leads to starting difficulties. Poor diesel quality significantly accelerates needle erosion.
Symptoms: Rough idle, cold-start difficulties, increased fuel consumption, soot smell. - !! Turbocharger — bearing failure from oil starvation from 150,000 km
Turbo bearings fail from oil starvation with excessively long oil change intervals or incorrect oil specification. Carbon build-up from EGR exhaust gases can block the turbine side and trigger geometry faults.
Symptoms: Power drop, whistling noise, blue exhaust, oil in the intake area.
+ 3 more engine weaknesses + vehicle weaknesses
Punchy variant of the 2.0 HDi (100 kW) with VGT turbocharger and high torque. Good pull and sufficient power even for heavier vehicles. Timing belt replacement with water pump every 240,000 km or 10 years is mandatory. Injectors, turbocharger and EGR valve are the known wear items. DPF is problematic on short trips. Overall a proven long-distance diesel with high potential.
- !! Timing belt — interference engine, high risk of engine damage from 100,000 km
Interference engine: timing belt snap causes valve-to-piston contact. Early failures documented from 60,000 km. Repair after snap: €2,000–6,000. Always check for proof of belt kit replacement at purchase.
Symptoms: Sudden engine stall without warning, no restart, metallic noise. - !! Common rail injectors — leakage and wear from 120,000 km
Injectors develop internal leaks from worn sealing elements. Bosch system: excessive fuel return flow reduces rail pressure. Low-quality fuel accelerates wear. Replacement should be done as a set.
Symptoms: Starting difficulties, rough idle, engine warning light, increased fuel consumption. - !! Dual-mass flywheel — premature wear from 80,000 km from 90,000 km
The DMF on the DW10BTED4 frequently wears from 80,000–100,000 km. Excessive play can damage the clutch disc and cause secondary costs. Replacement only makes sense together with a clutch kit.
Symptoms: Vibrations when pulling away, hammering noise at idle, gear change problems.
+ 3 more engine weaknesses + vehicle weaknesses
Strongest variant of the 2.0 HDi (120 kW) with high torque and effortless pulling power. Usually paired with an automatic gearbox, with high thermal stress from the power output. Timing belt replacement with water pump no later than every 160,000 km. Injectors, variable-geometry turbocharger and high-pressure pump are the typical cost items. With complete service history, a comfortable long-distance engine.
- !! Timing belt — interference engine, very strict maintenance required from 90,000 km
High-output variant with interference engine. Under higher engine load a belt snap immediately causes valve contact. Premature wear possible from 60,000–80,000 km. Workshop costs after engine damage: €3,000–6,000.
Symptoms: Sudden engine stall, no restart, metallic noise on snap. - !! Turbocharger — early failures under high load from 100,000 km
The more heavily loaded turbocharger in the 163 hp version tends to earlier bearing wear with insufficient oil change intervals. First weaknesses often from 60,000–80,000 km. Check turbo oil feed lines for sludge.
Symptoms: Power loss, whistling/rattling noises from the turbo, blue exhaust, warning light. - !! FAP/DPF — regeneration failure from 120,000 km
Eolys additive-based FAP system only regenerates adequately on motorway driving. Failed regenerations translate into oil dilution. Frequent short trips lead to premature filter replacement.
Symptoms: FAP warning light, power reduction, significantly increased fuel consumption, diesel smell in oil.
+ 3 more engine weaknesses + vehicle weaknesses
Stronger 150 hp variant (110 kW) of the 2.0 HDi or BlueHDi. Punchy and strong on torque, ideal for heavier vehicles and long-distance driving. From 2014 onwards available as BlueHDi with SCR catalytic converter and AdBlue. Timing belt replacement with water pump should be planned every 160,000 km. Injectors and turbocharger are the main wear items. AdBlue system is an additional failure source on BlueHDi versions.
- !! Timing belt — interference engine from 100,000 km
Interference engine: timing belt snap leads to piston-to-valve collision. Manufacturer recommends 80,000–120,000 km or 5 years. Used C5 II vehicles frequently lack complete service records. Having the kit on hand saves time at the workshop.
Symptoms: Sudden engine stall, no restart, metallic rumbling. - !! DPF/FAP — clogging from short-trip use from 120,000 km
PSA FAP system with Eolys additive: the particulate filter only regenerates at sufficient temperature (motorway driving). Short-trip use prevents complete regeneration and the filter clogs. Failed regeneration attempts increase oil dilution.
Symptoms: FAP warning light, power reduction, increased fuel consumption, limp mode. - !! Turbocharger — bearing damage from carbon from 130,000 km
The VNT turbo suffers from carbon build-up from the EGR system. Vanes lock up, bearings wear from insufficient oil supply with extended change intervals. Repair costs €500–1,500.
Symptoms: Whistling noise under acceleration, power loss, blue exhaust, oil in the intake hose.
+ 3 more engine weaknesses + vehicle weaknesses
Large PSA four-cylinder diesel (2.2 L, 120-150 kW) in various output levels. Punchy and strong on torque with excellent mid-range pull, but rarer than the 2.0 HDi. Belt-driven timing with a complex replacement procedure — in the V-arrangement it is elaborate and expensive (EUR 1,200+). Variable-geometry turbocharger and injectors are the main wear items. With good care, a refined long-distance engine with 300,000 km potential.
- !! Sequential bi-turbo system — wear and failures from 120,000 km
The DW12 uses two turbos in a parallel sequential arrangement. The small turbo works alone up to 1,400 rpm; both operate from 2,500 rpm. Seizure or bearing wear in one turbo causes uncontrolled boost pressure. Complex and expensive to repair.
Symptoms: Power loss, whistling/rattling noises, smoke, fault code. - !! FAP/DPF — difficult regeneration, known weak point from 100,000 km
The 2.2 HDi with EOLYS-based FAP is considered particularly susceptible to DPF problems. Lack of motorway driving leads to blockage. Regeneration failure increases oil dilution. Some mechanics fundamentally advise against this engine for short-trip drivers.
Symptoms: FAP warning light, power loss, limp mode, strong fuel smell in oil. - !! Head gasket — cracks at high mileage from 200,000 km
Under high mileage and thermal stress, DW12 cylinder heads can develop cracks. Known among mechanics as a problematic engine. In isolated cases, a complete engine swap from 2.2 to 2.0 HDi has been performed.
Symptoms: Coolant loss, mayonnaise in oil, overheating, white exhaust smoke.
+ 3 more engine weaknesses + vehicle weaknesses
First PSA V6 diesel (2.7 L, 150 kW) with bi-turbo charging and 24-valve technology. Originating from the Ford-PSA cooperation, very smooth-running and powerful with a sequential bi-turbo setup. Available exclusively with an automatic gearbox. Timing belt replacement is elaborate and expensive (EUR 1,500+). Turbochargers and injectors are the biggest cost traps. Complex and maintenance-intensive — only recommended as a used purchase with a complete service history.
- !! Oil starvation bearing damage from 160,000 km
The UHN can suffer oil starvation due to clogged passages.
Symptoms: Knocking, oil pressure warning - !! Oil pump rotor wears from 150,000 km
The UHN oil pump rotor wears at high mileages.
Symptoms: Dropping oil pressure at operating temp - !! Twin-turbo oil supply disrupted, bearing wear from 150,000 km
Both turbochargers of the 2.7 HDi V6 receive insufficient lubrication due to oil sludge. Sludge blocks the oil strainer in the supply line. Typical after long oil change intervals or predominantly short-trip operation.
Symptoms: Whistling from one or both turbos, blue smoke, increased oil consumption above 0.5 L/1000 km, noticeable power loss in the upper rev range.
+ 3 more engine weaknesses + vehicle weaknesses
PSA V6 diesel (3.0 L, 177 kW) with bi-turbo and enormous torque. An imposing powertrain for the luxury segment, smooth-running and effortless. Available exclusively with an automatic gearbox. Timing belt replacement is extremely elaborate and expensive due to the V-engine layout. Turbochargers, injectors and high-pressure pump are the main wear items. Complex and costly to maintain — only consider well-documented examples.
- !! Crankshaft bearing failure from 180,000 km
The UHZ engine can suffer severe crankshaft bearing damage with insufficient oil pressure.
Symptoms: Knocking from engine block, oil pressure warning light - !! Twin-turbo bearings wear from oil sludge from 150,000 km
The 3.0 HDi V6 has two turbochargers that suffer bearing damage from oil sludge caused by infrequent oil changes or short-trip driving. When one turbo fails, power loss and high oil consumption result.
Symptoms: Whistling turbo noise, heavy blue smoke from exhaust, noticeable power loss especially in the upper rev range, increased oil consumption. - !! Timing chain stretches, camshaft sprocket slips from 200,000 km
The timing chain of the 3.0 HDi V6 (UHZ) stretches at higher mileages. In rare cases the camshaft sprocket spins on its taper, causing immediate engine failure. Timing tools are required for adjustment work.
Symptoms: Rattling from the timing area on cold start, rough idle, engine warning light with camshaft fault, in the worst case abrupt engine failure.
+ 3 more engine weaknesses + vehicle weaknesses
The EP6DT/EP6CDT (Prince THP) is the most problematic engine from the PSA-BMW cooperation. Timing chain wear, high oil consumption, and VVT solenoid failures occurred on a large scale; camshaft sprocket slipping was only resolved from 2012 with harder gears. Short oil change intervals (max. 10,000 km) and quality 5W-30 engine oils are mandatory.
- !! Timing chain stretch and camshaft sprocket slippage from 80,000 km
The THP engine suffered severely from timing chain stretch caused by the weak single-row tensioner, combined with camshaft sprockets slipping on the shaft. This leads to uncontrolled valve timing loss and can cause piston-to-valve contact. PSA improved the sprockets from model year 2012 onwards.
Symptoms: Rattle on start-up, power loss, rough idle, check engine light P0011/P0012, in the worst case engine damage without warning - !! Extreme oil consumption from piston ring and valve stem seal wear from 80,000 km
THP engines frequently consume 1–3 litres of oil per 1,000 km from around 80,000 km, in extreme cases up to 4 l/1,000 km. Causes are worn exhaust valve stem seals and piston rings worn from soot deposits.
Symptoms: Very frequent oil top-ups, blue or white smoke from exhaust, black deposits on spark plugs, oil smell in engine bay - !! Turbocharger failure due to oil supply problems from 100,000 km
The THP turbocharger suffers from insufficient oil supply, especially when the oil level drops too low or the oil degrades from excessively long change intervals. Oil coke from the crankcase also blocks the oil feed line to the turbo.
Symptoms: Whistling or rattling turbo noise, blue smoke under full load, power drop, measurable boost pressure loss
+ 4 more engine weaknesses + vehicle weaknesses
PSA V6 naturally aspirated engine (3.0 L, 155 kW) with 24 valves and belt-driven timing. Smooth-running and solid with good power delivery, but high fuel consumption (12-15 L/100 km). Timing belt replacement is elaborate and expensive (EUR 1,000+) due to the V-arrangement with limited access. Oil cooler gasket and crankshaft position sensor are known wear items. On the used market, only purchase with a complete service history.
- !! Timing belt — complex replacement on V6 from 120,000 km
The ES9 3.0 V6 has a timing belt whose replacement is very labour-intensive due to the V6 architecture. The belt also drives the camshafts of both cylinder banks. Neglected intervals lead to total engine damage on failure.
Symptoms: On failure: immediate engine shutdown, metallic hammering from the engine, bent valves, no compression - !! Pencil coil failure from 80,000 km
The slim pencil coils on the V6 are prone to wear, especially the factory-fitted original types. A coil failure causes misfires in individual cylinders and rough running.
Symptoms: Engine stumbling, misfire warning light, rough running at certain revs, power loss - !! Camshaft cover oil leak from 100,000 km
Sealing rings and gaskets on the V6 camshaft cover become brittle and start leaking. Oil can drip onto hot engine components and in the worst case cause an engine fire.
Symptoms: Oil spots in the engine bay, burning smell, visible oil traces on the cam cover
+ 3 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Hydractive 3+ suspension: spheres and cylinders leaking The optional Hydractive 3+ suspension (standard on Exclusive trim) in the C5 II starts leaking at spheres and cylinders from around 80,000 km. A 'Suspension defective' message appears and the car limits top speed to 90 km/h. Symptoms: Suspension defective message, 90 km/h speed limit, vehicle does not rise to normal ride height, very hard suspension from 100,000 km | High | |
| Wheel bearings wear prematurely C5 II wheel bearings wear prematurely, especially at the rear. From 70,000-100,000 km drivers report speed-dependent humming. Symptoms: Humming at speed, noise changes in corners, play at wheel, MOT wheel bearing failure from 90,000 km | Low |
Alternatives
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Known Problems and Issues +
A total of 68 weaknesses have been documented for the Citroën C5 2 (2008–2017) — 61 engine-related and 7 vehicle-related. 6 problem engines: EP6-THP (1.6L THP), DW10-136 (2.0L HDi 136), DW10-150 (2.0L HDi/BlueHDi 150), DW10-163 (2.0L HDi 163), UHZ (3.0L HDi V6), UHN (2.7L HDi V6). Typical issues affect Suspension, Steering, Gearbox, Electronics.
C5 (DW10-136, 2008–2017) — Stay Away!: Timing belt — interference engine, high risk of engine damage, Common rail injectors — leakage and wear, Dual-mass flywheel — premature wear from 80,000 km. Power: 136–140 PS.
C5 (DW10-150, 2008–2017) — Stay Away!: Timing belt — interference engine, DPF/FAP — clogging from short-trip use, Turbocharger — bearing damage from carbon. Power: 150 PS.
C5 (DW12, 2008–2012) — Be Careful: Sequential bi-turbo system — wear and failures, FAP/DPF — difficult regeneration, known weak point, Head gasket — cracks at high mileage. Power: 163–170 PS.
C5 (DW12, 2008–2012) — Be Careful: Sequential bi-turbo system — wear and failures, FAP/DPF — difficult regeneration, known weak point, Head gasket — cracks at high mileage. Power: 204 PS.
C5 (UHN, 2008–2009) — Stay Away!: Oil starvation bearing damage, Oil pump rotor wears, Twin-turbo oil supply disrupted, bearing wear. Power: 204 PS.
C5 (DW10-126, 2008–2012) — Be Careful: Timing belt — interference engine with high damage risk, Common rail injectors — wear and leakage, Turbocharger — bearing failure from oil starvation. Power: 126 PS.
C5 (DW10-163, 2009–2017) — Stay Away!: Timing belt — interference engine, very strict maintenance required, Turbocharger — early failures under high load, FAP/DPF — regeneration failure. Power: 163 PS.
C5 (UHZ, 2009–2010) — Stay Away!: Crankshaft bearing failure, Twin-turbo bearings wear from oil sludge, Timing chain stretches, camshaft sprocket slips. Power: 241 PS.
C5 (DW10-BlueHDi180, 2015–2017) — Be Careful: AdBlue/SCR system — tank and pump failure, Timing belt — interference engine requiring special tooling, DPF — regeneration failure and oil dilution. Power: 181 PS.
C5 (EP6-THP, 2008–2017) — Stay Away!: Timing chain stretch and camshaft sprocket slippage, Extreme oil consumption from piston ring and valve stem seal wear, Turbocharger failure due to oil supply problems. Power: 150–156 PS.
C5 (ES9, 2008–2017) — Be Careful: Timing belt — complex replacement on V6, Pencil coil failure, Camshaft cover oil leak. Power: 211 PS.
What to watch out for with the Citroën C5? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Citroën C5 2 have? +
What should I look for when buying a used Citroën C5 2? +
Which engine is recommended? +
Which Citroën C5 2 engine is the most fun? +
Is the Citroën C5 2 worth buying used? +
What horsepower variants are available for the Citroën C5 2? +
Last updated: February 2026 · All information without guarantee