E Class Diesel Engines
from £1,500 to £4,500
Rebuilt units from £1,500 · Common codes: OM651, OM642, OM654, OM648
Get quotes from trusted UK Mercedes E Class engine specialists. Compare reconditioned & used engines for E200 to E63 AMG - M274/M264/M254/OM642 covered. Get a quote before it's too late.
E Class Diesel Engines
from £1,500 to £4,500
Rebuilt units from £1,500 · Common codes: OM651, OM642, OM654, OM648
E Class Petrol Engines
from £1,500 to £4,200
Rebuilt units from £1,500 · Common codes: M274, M276, M271, M112
E Class AMG Engines
from £4,500 to £12,000
Rebuilt units from £4,500 · Common codes: M156, M177, M113

Most replacements completed within 3-5 days.
The table below shows typical UK rebuilt engine costs across Mercedes Benz E Class variants, covering documented failure causes, chassis generations, engine codes, and fuel types based on current market data.


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Every engine code fitted to the Mercedes Benz E Class across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed diesel engine families across Mercedes Benz E Class variants.

OM651.924 - 2.1L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
Avg. rebuilt price
£1,200 - £2,800
Supply only
Technical specifications
Common failures
Not sure which engine code?

Mercedes Benz E Class OM651 Timing Chain Failure
Most affected vehicles
Mercedes Benz E Class E220 CDI, E220 BlueTEC, E250 CDI (2009-2016, OM651.924)
Failure mileage range
60,000 - 100,000 miles
Typical failure window
Root cause
The simplex timing chain sits at the rear of the engine, making replacement a gearbox-out job. Chain stretch occurs when oil change intervals exceed 15,000 miles, allowing guide wear and tensioner fatigue.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Timing Chain & Tensioner | £1,800 - £2,500 | £1,100 - £1,600 | Replacement of timing chain, tensioner, guides, and sprockets | 60,000-80,000 miles; only viable if caught before chain jumps |
| Major - Valvetrain Overhaul | £3,000 - £4,500 | £2,200 - £3,200 | Chain set plus replacement of damaged valves, lifters, and camshaft adjusters | 40,000-60,000 miles; requires head removal and specialist machining |
| Full Replacement - Rebuilt Engine | £5,000 - £7,000 | £2,800 - £4,200 | Supply & fit of rebuilt OM651 with upgraded timing components and bench testing | 100,000+ miles; upgraded parts address original design weakness |
Our recommendation
On an E220 CDI worth £2,500-£5,000, preventative chain replacement at a specialist is the clear value play if you hear cold-start rattle. If the chain has already jumped and bent valves, a rebuilt engine often costs less than a dealer-led valvetrain rebuild - and you get a fresh bottom end with warranty.
Compare rebuilt OM651 Mercedes Benz E Class engine prices
Every engine type is available through our UK network with typical price ranges based on your E Class variant, engine code and budget.
Compare Mercedes Benz E Class engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Mercedes Benz E Class within hours.

Every displacement fitted to the Mercedes Benz E Class across all UK generations is listed below, with compatible engine codes, production years, power outputs and common failure notes.
The smallest diesel option in the E Class range appeared in the W212 generation as an economy-focused entry point for fleet buyers. The OM626 1.6 CDI offered genuine 60+ mpg but was rarely specified on UK executive saloons, making replacement units less common than larger diesels.
Engine Code(s)
OM626
Compatible Models (UK)
E200 BlueTEC
Power output
Verified by registration
Common Failure Points
EGR valve clogging, DPF blockage from low-speed urban driving
Production Years: W212, 2013-2016
Get quotes for Mercedes Benz E Class 1.6L diesel engines
Choose your Mercedes Benz E Class engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early W210 diesel workhorses to the latest W213 plug-in hybrids.
Diesel dominated E Class sales across W211, W212 and W213 generations, with the OM651 2.1 and OM642 3.0 V6 accounting for over 70% of UK replacement enquiries due to timing chain and oil cooler failures.
Common Mercedes Benz E Class Diesel Engine Families
Found In
Known For
Typical Diesel Models
Diesel dominated E Class sales across W211, W212 and W213 generations, with the OM651 2.1 and OM642 3.0 V6 accounting for over 70% of UK replacement enquiries due to timing chain and oil cooler failures.
Common Mercedes Benz E Class Diesel Engine Families
Found In
Known For
Typical Diesel Models
Petrol E Class variants generate lower overall replacement volume than diesel but attract higher average order value, particularly for V6 M276 units and AMG models where owners demand specialist-grade rebuilds.
Common Mercedes Benz E Class Petrol Engine Families
Found In
Known For
Typical Petrol Models
The W213 E300e combined the M274 2.0 petrol engine with an electric motor and battery pack, offering low company car tax rates and electric-only city driving.
Mercedes Benz E Class PHEV Engine Codes
Found In
Important Notes
Not sure which fuel type your Mercedes Benz E Class has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Mercedes Benz E Class specialists.

This timeline covers every major Mercedes Benz E Class engine change from 1995 to the present, helping owners identify their exact power unit and compare rebuilt engine prices from UK specialists.
⚙Key Changes
▣Main Engines
OM606- 3.0 litre diesel (E300 Diesel)
OM611- 2.2 litre diesel (E220 CDI)
OM647- 2.7 litre diesel (E270 CDI)
M111- 2.0 litre petrol (E200)
M112- 2.8/3.2 litre V6 petrol (E240/E280/E320)
▰Popular Models
🔧Known For
Engine Codes Covered:
OM606OM611OM647M111M112M113