Mercedes Benz Citan 108/109/110/111/112 CDI Engine ReplacementCompare Prices & Get Quotes

Short summary: A rebuilt OM607 engine for the Citan 108-112 CDI costs £1,200-£3,200 supply-only, depending on variant and power output. Supply-and-fit adds £300-£600 labour. Prices vary by variant, engine code, and specialist location across the UK network.

• Citan 108/109/110 CDI (OM607.951 K9K608, 75-95hp): rebuilt unit £1,600-£2,900; used engine from £800
• Citan 111 CDI (OM607.951 LA K9K628, 110hp): rebuilt unit £1,800-£3,200; used engine from £900
• Citan 112 CDI (OM607.951, 116hp): rebuilt unit £2,000-£3,400; used engine from £1,000
• OM607 timing chain replacement (labour only): £1,000-£1,500 at specialist
• 12-month unlimited mileage warranty included on all reconditioned units

Short summary: A rattling noise on cold start is the classic warning sign on the OM607 engine. The timing chain tensioner can lose hydraulic pressure, allowing chain slack and guide wear. If ignored, it can lead to catastrophic engine failure and significant commercial downtime.

• Rattling noise on cold start lasting 1-3 seconds - earliest warning sign
• Check engine light with timing correlation codes
• Metallic debris in the engine oil (severe cases)
• If caught early, timing chain replacement costs £1,000-£1,500 at specialist

Short summary: White smoke from the exhaust, coolant loss, and overheating are the classic warning signs on the OM607 engine. The EGR cooler can crack internally (documented Mercedes TSB fault), allowing coolant to enter the exhaust stream.

• Thick white smoke from the exhaust
• Coolant loss without visible external leaks
• Engine overheating or temperature gauge fluctuation
• If caught early, EGR cooler replacement costs £450-£750 at specialist

Short summary: The OM607 is fundamentally a robust and reliable commercial diesel engine - 150,000+ mile examples are common. However, it has predictable weak points: timing chain stretch from approximately 60,000 miles, EGR cooler cracking (TSB documented), and turbo actuator failure. All are manageable with the right maintenance schedule and proactive attention.

• OM607 is fundamentally robust with good fuel economy (60+ mpg)
• Timing chain stretch is the most critical failure point - early intervention is key
• EGR cooler cracking and DPF issues are common on high-mileage vehicles
• Regular oil changes with Mercedes-spec low-SAPS oil are essential

Short summary: Properly maintained OM607 engines routinely reach 150,000-200,000 miles before major work. Timing chain issues typically appear between 60,000-100,000 miles.

• OM607 (Citan 108-112 CDI): 150,000-200,000 miles with regular servicing
• Timing chain inspection recommended from 60,000 miles
• Service interval is 10,000 miles or 12 months - use Mercedes-spec low-SAPS oil
• Late oil changes accelerate timing chain wear and EGR cooler degradation

Short summary: Yes, if the Citan is otherwise in good condition with no structural rust or major transmission faults. A rebuilt OM607 costs £1,200-£3,200 - far less than replacing a £3,000-£10,000 vehicle. Commercial operators typically save £10,000+ versus purchasing a new Citan van.

• Citan 108-112 CDI values: £3,000-£10,000 depending on year, mileage and condition
• Rebuilt engine with upgraded components fixes original weak points
• Supply & fit typically £1,500-£3,800 depending on engine code
• New engine includes 12-month unlimited mileage warranty
• 80,000-120,000 additional miles typically achievable from a rebuilt engine