Mercedes ML270 CDIEngine Rebuild— From £2,200
Specialist Mercedes ML270 CDI engine rebuilds and replacements, with registration-based engine matching, nationwide recovery and a 12-month unlimited-mileage warranty
Rated Mercedes Engine Specialists — 1,800+ Engines Rebuilt
Specialist technicians with 10-15 years of experience
12 Month Unlimited-Mileage Warranty
Nationwide Recovery
Free Engine Matching by Registration
M256 Specialists
Your Mercedes ML270 CDI Engine
Vehicle
Mercedes ML270 CDI
Model
M-Class
Variant
ML270 CDI
Fuel
Diesel
Engine
OM612
Capacity
2.7L I5
Generation
W163 (1999–2005)
Rebuild From
£2,200
Not sure which engine you have?
The ML270 CDI uses the M256 3.0-litre inline-six mild-hybrid engine — enter your registration below and we'll confirm your exact spec before you get a quote.
DVLA & VIN verified
100% secure & private
No obligation quote
Mercedes ML270 CDIEngine Rebuild Price
Starting From £2,200
Engine Code
OM612Rebuild From
£2,200
Generation
W163 (1999–2005)
Exact price depends on condition and parts required — submit your reg for a fixed-price quote.
Mercedes ML270 CDI Oil Leaks & Coolant System Wear (M256 I6)
The M256 is a sophisticated 3.0-litre inline-six with an integrated starter-generator and electric auxiliary compressor — a more modern and efficient design than the older M276 V6. We replace timing chains, bearings, water pump and gaskets as standard on every M256 rebuild.
Because the ML270 CDI uses a completely different engine family from the V8 M178 fitted to the M-Class 63 and GT 63 S, parts and rebuild specifications don't cross over between them.
Source: Established M256 specialist pattern — timing chain, bearing and gasket wear across integrated-starter-generator inline-six units.
Mercedes ML270 CDIENGINE OPTIONS
Every ML270 CDI is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR ML270 CDI ENGINE
We rebuild the engine your ML270 CDI already has instead of selling you a used engine of unknown history — strip it down, pressure-test it, and replace every worn or damaged component (timing chains, bearings, water pump, gaskets) with updated OEM parts. Near-new performance with a 12-month unlimited-mileage warranty.
From £3,200RECONDITIONED ML270 CDI ENGINES
A full strip-down, inspection and replacement of worn parts rather than a straight swap. If that's what you're after, our rebuild service is exactly that.
Learn moreREFURBISHED ML270 CDI ENGINES
Restoring your existing engine to full working condition rather than replacing it outright. Our rebuild service covers this.
Learn moreREMANUFACTURED ML270 CDI ENGINES
Built to original specification with updated components. That's consistent with what our rebuild service delivers on the M256.
Learn moreREPLACEMENT ML270 CDI ENGINES
If your existing engine is beyond economical repair, we offer complete engine replacement and fitting – sourced and fitted by our team, with the same 12-month warranty.
Learn moreUSED ML270 CDI ENGINES
Matched low-mileage used engines for when time is critical. We source and fit these too, but most owners choose a rebuild once they understand the compatibility risks.
Learn moreNOT SURE WHICH OPTION IS RIGHT FOR YOU?
Enter your registration below and we'll confirm your M256 and talk you through the best solution for your ML270 CDI, honestly.
Ask About Your Options
OUR WORKSHOP
01RECOVERY COLLECTION
02M256 ENGINE STRIPPED FOR REBUILD INSPECTION
03VALVE COVERS & COOLANT COMPONENT WORK
04TECHNICIANS AT WORK
05ENGINE TESTING (RIG)
06COMPLETED & READY FOR REFIT
Real photos from our workshop — not stock imagery. This is what a genuine Mercedes ML270 CDI rebuild looks like.
Mercedes ML270 CDI ENGINE REBUILD PROCESS
WHAT MERCEDES ML270 CDI OWNERS SAY
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your ML270 CDI has the M256, along with an exact rebuild price.
WHY MERCEDES ML270 CDI OWNERS CHOOSE US
Engine matched using VIN or registration number
Genuine specialist workshop — not a broker
Specialist technicians with 10-15 years of experience
We don't swap your engine for an unknown used unit
Nationwide recovery, workshop rebuild
12 month unlimited-mileage warranty
All engine ancillaries serviced as part of the rebuild
Trade & public enquiries welcome
Dedicated advisor from quote to fit No widely-reported engine issue for this variant — we still recommend a full inspection before any long journey.
OUR MOST RECENTMERCEDES RECOVERIES & REBUILDS
Real vehicles brought into our workshop. Open bonnets, stripped blocks, and cars ready for collection — this is what genuine engine work looks like.
Mercedes ML270 CDI
RECOVERY
Mercedes M-Class 63
DIAGNOSTICS
Mercedes M-Class
STRIPPED ENGINE
Mercedes M-Class S
TIMING CHAIN REPLACEMENT
Mercedes ML270 CDI
IN FOR REBUILD
Mercedes M-Class C
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most M-Class models are recovered within a few hours of booking. Most rebuilds are completed within 3-5 working days.
Workshop slots fill up fast — book your recovery today.
LOOKING FOR A USED ORREPLACEMENT ENGINEINSTEAD?
We supply low-mileage, VIN-matched used units too, and offer full replacement and fitting. However, most ML270 CDI owners choose a rebuild once they realise it removes compatibility risk and works out more cost-effective over the life of the car.
Enter your reg below — we'll show you every option, honestly.
ABOUT THE MERCEDES ML270 CDI ENGINE
The ML270 CDI was introduced in 1999 as a diesel option for the first-generation M-Class. It uses the OM612 — a 2.7-litre five-cylinder diesel that was part of Mercedes' CDI (Common-rail Direct Injection) family. This engine was fitted throughout the W163 generation's production run, from 1999 until the M-Class was replaced by the W164 generation in 2005.
We continue to rebuild and replace M256 engines for every ML270 CDI on the road.
MERCEDES ML270 CDI ENGINE CODES
M256 (R190, 2023–present)
A 3.0-litre inline-six petrol mild-hybrid engine fitted to the ML270 CDI from 2023 to present. The M256 features an integrated starter-generator (ISG) and electric auxiliary compressor, making it a more modern and efficient design than the older M276 V6. We replace timing chains, bearings, water pump and gaskets as standard on every M256 rebuild.
Check Your M256 ML270 CDIMERCEDES ML270 CDI ENGINE COMPATIBILITY
The OM612 engine in the ML270 CDI is specific to the W163 generation M-Class. Before we quote or supply anything, we confirm:
Your exact engine code (M256) via registration or VIN
Your generation (R190)
Drivetrain and ancillary specification
Any electronics or ECU considerations specific to your exact build
This is why we always start with your registration rather than a generic M-Class quote — it protects you from paying for parts that don't fit your actual car.
MERCEDES ML270 CDI APPLICATIONS BY GENERATION
Generation
Chassis
Years
Engine Code
Fuel
MERCEDES ML270 CDI ENGINES BY YEAR
From the R190's launch in 2023, the ML270 CDI has used the M256 3.0-litre inline-six mild hybrid throughout. If you're unsure of your exact spec, we'll confirm it before you book.
The M256 has been fitted to every ML270 CDI since launch — if your registration year isn't listed above, get in touch and we'll confirm availability directly against your reg.
WE COVER EVERY MERCEDES ML270 CDI MODEL YEAR:
Mercedes ML270 CDI
1999 Engine Rebuild
Mercedes ML270 CDI
2000 Engine Rebuild
Mercedes ML270 CDI
2001 Engine Rebuild
Mercedes ML270 CDI
2002 Engine Rebuild
Mercedes ML270 CDI
2003 Engine Rebuild
Mercedes ML270 CDI
2004 Engine Rebuild
Mercedes ML270 CDI
2005 Engine Rebuild
If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.
MERCEDES ML270 CDI ENGINE COSTS
A Mercedes ML270 CDI engine rebuild starts from
£2,200
A full replacement engine and fitting service is also available. Exact pricing depends on the condition of your existing engine and the parts required — submit your registration for a fixed-price quote within 30 minutes.
12 MONTH
UNLIMITED-MILEAGE
WARRANTY
MERCEDES ML270 CDI ENGINE SIZES
• Mercedes ML270 CDI 3.0 Litre Engine (M256, I6)
MERCEDES ML270 CDI FUEL TYPES
• Mercedes ML270 CDI Petrol Mild Hybrid Engine Rebuilds
RELATED MERCEDES M-CLASS VARIANTS
Most Mercedes M-Class engine rebuilds are completed within 3-5 working days.
Nationwide recovery and collection available for all M-Class models.