KNOWN FAULTS · Mercedes-Benz

Known faults for the Mercedes-Benz Citan / Clase T (W415 / W420).

2012–2026 · Petrol / Diesel / Electric

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Engines: 1.2 / 1.3 (Petrol) · 1.5 CDI / d (Diesel) · eCitan (Electric)

Applies if: Weak points of this model from inspections, breakdown statistics and recalls; anything specific to one engine is stated in the sheet.

Turbo, 1.2 oil consumption and steering on the CitanKnown weak points

Engine / equipment: Mercedes Citan W415 and Citan / T-Class W420 (petrol, diesel and electric)
Period mentioned: 2012 onwards
Symptoms: W415: a turbo failing with mileage (noises, low power, warning light), oil consumption on the 1.2 turbo from about 100,000 km, steering column and box, rusty brakes and lines, interior rattles, an injection warning from a burnt fuel-pump connector; W420: a battery that cuts consumers with the engine off.
Possible cause described: The W415 1.2 turbo is the Renault engine with poorly designed piston rings according to the guide. A recall for cracks in the steering-column tube. For the W420 Mercedes is preparing a battery software update.
Check for the garage: Measure oil consumption (1.2); test the turbo; check the steering-column campaign by VIN.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Engines: 1.5 CDI / d (Diesel)

Renault 1.5 diesel (OM607/OM608) injectors, EGR and DPFInjection / EGR / DPF

Engine / equipment: OM607 and OM608 1.5 diesel of Renault origin (K9K): A 160/180 CDI and d, B 160/180, CLA 180 CDI and d, GLA 180 d, Citan
Period mentioned: 2012–2026
Symptoms: Smoke, hesitation or hard starting (injectors); unstable idle, power loss and engine light (EGR); particulate filter warning in town use; oil consumption.
Possible cause described: It is Renault's 1.5 dCi with Mercedes electronics. On the OM607 the injectors are the main weak point; the OM608 that replaced it in 2018 has fewer problems. The EGR builds up carbon, mostly between 60,000 and 100,000 km, and the particulate filter clogs on short trips.
Check for the garage: Identify the engine (OM607 until 2018, OM608 after), measure injector balance rates, check the EGR and particulate filter status and watch the oil level.
Cost cited in the source: Depends on the part (injectors, EGR or turbo); the sources consulted give no reliable figuresA rough figure from the original database, not an up-to-date quote.

Mileage cited in the database: 60,000–100,000 km. This is not a maintenance interval and does not predict a failure.