Injector wear
usually 150,000–250,000 km · Medium risk
Signs: Rough idle, smoke
Fix: Replace injectors
€600–1,400
Common faults, service intervals and costs
Mercedes-Benz Citan (W420)
2021–now
2
engines covered
10
known faults
2
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Mercedes-Benz Citan (W420) has been built since 2021.
For this generation we cover 2 engines and 10 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Crankshaft bearing wear: it usually appears at 180,000–280,000 km and costs €1,500–3,000 to fix.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.5 dCi (K9K) | Diesel | Belt · 120,000 km / every 72 mo | 5W-30 · Renault RN0720 (DPF) / RN0710 · ~4.5 L · every 10,000 km |
| 1.3 TCe / DIG-T (H5H / M282) | Petrol | Chain | 0W-20 / 5W-30 · Renault RN17 / MB 229.5 · ~4.8 L · every 15,000 km |
Faults by engine
1.5 dCi (K9K)
Crankshaft bearing wear
usually 180,000–280,000 km · High risk
Signs: Knock under load; worse on older engines
Fix: Keep oil changes at 10,000 km
€1,500–3,000
EGR / DPF
usually 120,000–200,000 km · Medium risk
Signs: Limp mode
Fix: Clean or replace
€250–1,200
1.3 TCe / DIG-T (H5H / M282)
Ignition coils / spark plugs
usually 80,000–150,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil and plugs
€100–300
Water pump
usually 100,000–160,000 km · Medium risk
Signs: Coolant loss
Fix: Replace pump
€250–500
Catalytic converter
usually 180,000–260,000 km · Medium risk
Signs: Rattle, efficiency code
Fix: Replace
€500–1,500
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Dual-mass flywheel
usually 150,000–220,000 km · Medium risk
Signs: Rattle at idle, vibration pulling away
Fix: Replace with clutch
€700–1,400
Dual-clutch (dry, 7-sp)
Mechatronic unit (7-speed dry DCT)
usually 60,000–150,000 km · High risk
Signs: Flashing gear indicator, no drive
Fix: Repair or replace mechatronic
€1,200–2,500
Clutch pack judder
usually 80,000–160,000 km · Medium risk
Signs: Judder pulling away
Fix: Replace clutch pack
€800–1,500
Scheduled service
Intervals and typical prices for the 1.5 dCi (K9K) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 10,000 km or every 12 months | €70–150 |
| DPF health check (soot / ash load)Emissions | every 20,000 km | €0–60 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Fuel filterFuel | every 30,000 km or every 24 months | €40–110 |
| Glow plugsEngine | every 100,000 km | €120–300 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Timing belt kit + water pumpEngine | every 120,000 km or every 72 months | €450–900 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Most common engine versions in the EU
New cars of this generation registered in the EU, Iceland and Norway 2010–2025: 27,329, of which 52 in Croatia. The share shows how common each version is.
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 1.5 dCi (K9K)1.5 (1,461 cm³) · 85 kW (116 hp) · Diesel | 42.3 % | 2022–2025 | 145 g/km | 5.6 L |
| 1.5 dCi (K9K)1.5 (1,461 cm³) · 70 kW (95 hp) · Diesel | 28.7 % | 2022–2025 | 140 g/km | 5.3 L |
| 1.3 TCe / DIG-T (H5H / M282)1.3 (1,332 cm³) · 96 kW (131 hp) · Petrol | 24.6 % | 2022–2025 | 156 g/km | 6.9 L |
| 1.3 TCe / DIG-T (H5H / M282)1.3 (1,332 cm³) · 75 kW (102 hp) · Petrol | 4.2 % | 2022–2025 | 156 g/km | 6.8 L |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (2). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Gearbox Replace clutch assembly04/04/2026 · R/2026/120
- Electronics / software Initialisation of Central Control Unit02/09/2025 · R/2025/332
Common questions
Does the Mercedes-Benz Citan (W420) have a timing chain or a timing belt?
1.5 dCi (K9K): belt · 120,000 km / every 72 mo; 1.3 TCe / DIG-T (H5H / M282): chain.
What are the known problems with the Mercedes-Benz Citan (W420)?
The faults with the highest risk: crankshaft bearing wear (180,000–280,000 km, €1,500–3,000); mechatronic unit (7-speed dry DCT) (60,000–150,000 km, €1,200–2,500); catalytic converter (180,000–260,000 km, €500–1,500); clutch pack judder (80,000–160,000 km, €800–1,500). The full list by engine is on this page.
What should you check when buying a used Mercedes-Benz Citan (W420)?
Before you buy, ask an authorised dealer to check by VIN that the recalls have been done (2 have been published for this model). If the engine has a timing belt, ask for the invoice for its replacement: with no proof, assume it has not been done. On the test drive, watch for these signs: knock under load; flashing gear indicator, no drive. The full checklist is in the guide to buying a used car.
Other generations
Models with the same engines
These models share engines with this car, so they share some of its faults too.
Nissan Qashqai (J11) 2013–2021Mercedes-Benz A-Class (W177) 2018–Dacia Duster II 2017–2024Renault Kadjar 2015–2022Renault Captur II 2019–Nissan Qashqai (J12) 2021–Mercedes-Benz CLA (C118) 2019–Renault Clio V 2019–
Other Mercedes-Benz models
Mercedes-Benz C-Class (W206) 2021–Mercedes-Benz EQA (H243) 2021–Mercedes-Benz EQB (X243) 2021–Mercedes-Benz EQS (V297) 2021–Mercedes-Benz EQE (V295) 2022–Mercedes-Benz GLA (H247) 2020–Mercedes-Benz GLC (X254) 2022–Mercedes-Benz S-Class (W223) 2020–Mercedes-Benz E-Class (W214) 2023–Mercedes-Benz EQC (N293) 2019–2024
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026