Citroën DS4 1
Weaknesses, engine ratings and buying advice
The Citroën DS4 (2011–2018) was the attempt to turn the C4 into a premium coupé with a hatchback — without Citroën having the brand image at the time to deliver on that promise. What remains is a visually distinctive car with good build quality that hardly anyone wants on the used market. And that is precisely the opportunity.
Engine choice: The DV6C (1.6 HDi/BlueHDi, 82–88 kW) is the most commonly fitted engine and a solid long-distance diesel. Timing belt rather than chain — replacement every 160,000 km or 10 years, cost 400–700 €. Injectors can start leaking from 150,000 km, replacement 300–600 € each. The DW10-150 (2.0 HDi/BlueHDi, 110–120 kW) brings significantly more composure and is technically mature — the better choice for the DS4 on long journeys.
Among the petrols, the notorious EP6-THP (1.6L Turbo, 120–147 kW) dominates. The problem list is long: timing chain stretch from 60,000 km (symptom: rattling on cold start, repair 1,200–2,000 €), oil consumption from defective valve stem seals, turbocharger damage from oil coking (1,500–2,500 €), and thermostat failures causing overheating. The EP6 was co-developed with BMW and caused trouble in both groups. In the DS4, parts availability is somewhat thin — few examples, low demand, therefore limited choice at breakers. The EP6-VTi (1.6L naturally aspirated, 88 kW) without turbo is significantly more reliable, but barely adequate for the DS4's weight.
The ETG6 gearbox (automated manual) is the dealbreaker. Jerky shifting in city traffic, clutch actuator wear from 60,000–80,000 km, repair 800–1,500 €. The conventional 6-speed manual works flawlessly — those offered a DS4 with ETG6 should negotiate the price down hard or walk away.
Vehicle weaknesses: The BSI (central control unit) causes the usual Citroën trouble — warning lights without cause, sporadic electrical failures. Often a reset or software update helps, sometimes the BSI must be replaced (400–900 €). Brake discs wear faster than average on the DS4 — MOT issues already at the second inspection. The electric power steering can have dropouts, felt as suddenly heavy steering. Underbody rust and ABS sensor corrosion appear on poorly maintained examples.
Test drive: Cold start: check EP6-THP for chain rattle. Check oil level — consumption between changes? ETG6 gearbox: three pull-away attempts, reverse gear, hill start. BSI: all warning lights briefly on after start, then all off? Steering: at low speed, check for heavy patches. Brakes: check discs for scoring, vibration when braking.
2026 market: DS4 with 1.6 HDi from 4,000–7,000 €. 2.0 HDi from 5,000–9,000 €. EP6-THP from 3,500–6,000 € (cheaper due to engine risk). Prices are low — the model is an insider tip for those seeking a distinctive hatchback with no concern for resale value.
Insider pick: DW10-150 2.0 BlueHDi with 6-speed manual, from 2015 (facelift) — the strongest diesel, no ETG6 risk, and with BlueHDi emissions standard no problem in environmental zones.
200 PS
DS4 · Benzin
Sprightly Picasso
Fun to Drive!140–211 PS
1.6L THP Benzin
7 weaknesses
Stay Away!Engine Overview
The Citroën DS4 1 is available with 6 engine variants — from 90 to 211 hp.
Stronger BlueHDi variant of the 1.6-litre diesel (88 kW) with SCR catalytic converter and AdBlue. Punchy and economical, often paired with the EAT6 automatic. Shares the typical DV6 weak points: turbocharger oil feed line, injector seals and EGR coking. The AdBlue system (NOx sensor, pump, dosing valve) is an additional failure source compared to the predecessor. Timing belt replacement per manufacturer schedule is essential.
- !! AdBlue tank sender faulty — start lockout from 80,000 km
Identical issue to the BlueHDi 100: the integrated level sensor in the urea tank fails and cannot be replaced individually. Without goodwill or warranty, tank replacement costs up to €1,200. Cold winters accelerate crystallisation problems.
Symptoms: Warning message 'Check AdBlue', countdown on instrument cluster, start lockout after several cycles - !! Turbocharger actuator faulty — boost pressure loss from 130,000 km
The electric turbo actuator on the BlueHDi 120 can fail and lock the turbocharger in one position. This results in permanent boost loss or excessive boost pressure. Repair often requires replacing the complete turbocharger.
Symptoms: Limp mode, weak acceleration, boost pressure faults P0234/P0299, turbo whistling noise - !! EGR system: valve and cooler contaminated from 90,000 km
On the BlueHDi-120, soot builds up intensively in the EGR valve and cooler. Technical reports list EGR damage among the five most common workshop jobs on this engine, alongside injector, FAP and turbo problems. Cleaning every 60,000 km prevents consequential damage.
Symptoms: Engine warning light, limp mode, increased consumption, hesitation at part load
+ 3 more engine weaknesses + vehicle weaknesses
Strongest variant of the 1.6 HDi (80 kW) with VGT turbocharger and more elaborate exhaust aftertreatment than the lower-output versions. The oil feed line to the turbocharger clogs with soot particles in the oil — regular oil changes every 15,000 km are mandatory. Injector seals and the EGR valve are further typical wear items. DPF is problematic on short trips. On long-distance duty, a punchy and economical everyday diesel.
- !! VNT turbocharger: vanes seized — most common failure from 120,000 km
On the 109 hp DV6, seized variable VNT vanes clogged by oil sludge is the single most documented failure. PSA has issued a technical service bulletin. Without oil changes every 10,000 km, the damage typically occurs before 150,000 km.
Symptoms: Sudden limp mode, loss of boost, whistling turbo noise, black smoke, faults P0234/P0299 - !! Injectors seized — cylinder head damage possible from 140,000 km
DV6-109 injectors seize in their bores with neglected servicing. Removal requires specialist tools and can take over 10 hours. In extreme cases the threaded bolt shears and the cylinder head must be replaced.
Symptoms: Smoky cold-start smell, misfires, black soot deposit at injector, knocking noise - !! EGR cooler leaking — coolant ingress from 120,000 km
The DV6-109 EGR cooler can become porous from thermal shock and let coolant into the intake tract. This leads to white smoke, coolant loss and in the worst case a hydraulic lock in the cylinder.
Symptoms: White smoke, sweet smell from exhaust, dropping coolant level, coolant smell in cabin
+ 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
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
The EP6 VTi (N12/EP6C) is the naturally aspirated variant of the Prince engine without direct injection, making it less susceptible to intake valve carbon build-up than the THP. The early production chain tensioner issue is known; PSA improved the tensioner from 2012. Regular oil changes every 10,000 km are mandatory.
- !! Timing chain rattle due to tensioner wear from 80,000 km
Early EP6 VTi engines (pre-2012) suffer from a weak hydraulic chain tensioner that rattles on cold starts. The single-row timing chain stretches when tensioner pressure drops, causing valve timing to shift. PSA documented oil leaks from the chain tensioner between April 2010 and April 2011.
Symptoms: Rattling or chattering from the timing chain area for several seconds after cold start, occasionally also at operating temperature when oil level is low - !! Chain tensioner failure — timing chain rattles from 100,000 km
The hydraulic chain tensioner on the EP6 VTi is a known weakness at PSA and BMW. The tensioner loses oil pressure when stationary, causing the chain to rattle on cold start and risk jumping a tooth.
Symptoms: Loud rattling on cold start that disappears after a few seconds, engine check light, camshaft position sensor fault code - !! Torn oil separator diaphragm in valve cover from 70,000 km
The oil separator (PCV diaphragm) in the EP6 valve cover tears and routes unfiltered oil into the intake tract. This leads to elevated oil consumption, coking of the intake valves and visible oil in the intake hose.
Symptoms: Elevated oil consumption without visible external leak, oil in intake hose, blue smoke after cold start, power loss from contaminated intake valves
+ 3 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| BSI control unit triggers false fault warnings The central BSI control unit in the DS4 I is prone to software faults that simultaneously trigger warning lights for ABS, ESP, ASR and the parking brake. The cause is often moisture in connectors or a weak 12V battery. Symptoms: Multiple warning lights simultaneously (ABS, ESP, ASR, parking brake), sporadic fault messages, vehicle will not start from 70,000 km | Medium |
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Known Problems and Issues +
A total of 44 weaknesses have been documented for the Citroën DS4 1 (2011–2018) — 37 engine-related and 7 vehicle-related. 6 problem engines: EP6-VTi (1.6L VTi), EP6-THP (1.6L THP), DV6-109 (1.6L HDi 109), DV6-BlueHDi120 (1.6L BlueHDi 120), DW10-150 (2.0L HDi/BlueHDi 150), DW10-163 (2.0L HDi 163). Typical issues affect Electronics, Steering, Gearbox, Rust.
DS4 (DV6-109, 2011–2018) — Stay Away!: VNT turbocharger: vanes seized — most common failure, Injectors seized — cylinder head damage possible, EGR cooler leaking — coolant ingress. Power: 111–116 PS.
DS4 (DW10-150, 2011–2018) — Stay Away!: Timing belt — interference engine, DPF/FAP — clogging from short-trip use, Turbocharger — bearing damage from carbon. Power: 150 PS.
DS4 (DW10-163, 2011–2018) — Stay Away!: Timing belt — interference engine, very strict maintenance required, Turbocharger — early failures under high load, FAP/DPF — regeneration failure. Power: 163 PS.
DS4 (DV6-BlueHDi120, 2015–2018) — Stay Away!: AdBlue tank sender faulty — start lockout, Turbocharger actuator faulty — boost pressure loss, EGR system: valve and cooler contaminated. Power: 114–120 PS.
DS4 (EP6-VTi, 2011–2018) — Stay Away!: Timing chain rattle due to tensioner wear, Chain tensioner failure — timing chain rattles, Torn oil separator diaphragm in valve cover. Power: 120 PS.
DS4 (EP6-THP, 2011–2018) — 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: 156–165 PS.
DS4 (EP6-THP, 2011–2018) — 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: 200 PS.
What to watch out for with the Citroën DS4? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee