Independent Mercedes-Benz Specialist · Oldbury
Independent Mercedes-Benz diesel specialist in Oldbury serving Birmingham and the West Midlands. We work on the engines Mercedes garages know best — OM651 and OM642 — and the AdBlue / SCR systems that cause the most trouble in the field.
Independent garage — no manufacturer affiliation.
Diesel Automotive is an independent garage and is not affiliated with Audi, BMW, Mercedes-Benz, Land Rover, Range Rover, Volkswagen, Ford, Vauxhall, Renault, Peugeot, Citroën, Fiat, Iveco, Jaguar, Volvo, MINI, Porsche or any vehicle manufacturer.
The Mercedes diesel range is one of our specialisms. Common engines we may see include the OM651 four-cylinder (C, E, GLA, Vito, Sprinter) and the OM642 V6 (E, ML, GL, Sprinter). The AdBlue system on these cars is sensitive — pump location is vulnerable, the heater is undersized, and crystallisation is common.
We carry out independent Mercedes diagnostics, AdBlue / SCR repairs, DPF cleaning, EGR work, OM651 timing chain replacement and engine reconditioning where suitable. Sprinter diesel work — see our Mercedes Sprinter Specialist page.
AdBlue work on Mercedes diesels is a major part of what we do. We diagnose using manufacturer-level tools, fix the underlying fault and clear the countdown. We do not delete AdBlue systems.
Yes — independent diesel specialist work on Mercedes-Benz. Diagnostics, DPF, AdBlue, EGR, turbos, timing components and engine work where suitable.
Yes. Manufacturer-protocol diagnostics — soot load, ash mass, differential pressure and underlying cause analysis before any spend. We diagnose first, then offer forced regeneration, off-car cleaning or replacement. We do not delete DPFs.
Yes. NOx sensor faults, AdBlue pump and heater issues, injector blockage and countdown clearing once the underlying fault is fixed. We do not delete AdBlue systems.
Yes. Cylinder head overhaul, head gasket repairs, full engine reconditioning where the bottom end is recoverable. We strip and inspect first then quote in writing.
Yes — clutch and dual mass flywheel replacement is routine. We inspect the DMF before recommending replacement, so you don't pay for parts you don't need.
The Mercedes AdBlue system has a vulnerable pump location, an undersized heater and is sensitive to crystallisation. None of that is your fault — it's a design issue we see weekly. Fix the underlying fault (NOx sensor, pump, heater or injector) and the countdown clears.
Yes — see our dedicated Mercedes Sprinter Specialist page for the full service. Subject to bay access for larger vans.
No. Diesel Automotive is an independent garage and is not affiliated with or approved by the manufacturer. We provide independent diesel diagnostics and repair services.
Send us your registration, symptoms and any fault codes or photos. We'll advise the sensible next step and quote properly.