Compare Mercedes OM642 Repair & Engine Prices UK
Compare Mercedes OM642 Repair and Replacement Prices Key takeaway: For most UK owners of an OM642-powered Mercedes, repairing the known faults early is far cheaper than replacing the engine. Oil cooler seals (£350–£600), swirl flaps (£250–£500) and DPF work (£800–£1,500) cost a fraction of a fitted replacement engine (£3,500–£5,500). Replacement only makes financial sense when repair costs approach 50% of the car's value or the engine has secondary damage. Who this guide is for: UK drivers of Mercedes models with the 3.0 V6 OM642 diesel who have a fault, a quote or a repair-or-replace decision to make, and want to compare prices fairly before committing. Compare engine prices and repair costs together, because on the OM642 the two decisions are linked. · Oil cooler seals: £350–£600 · Swirl flap repair: £250–£500 · DPF replacement: £800–£1,500 ...