

Mercedes GLK220 CDI dEngine Rebuild— From £2,200
Specialist Mercedes GLK220 CDI/d 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 GLK220 CDI d Engine

Vehicle
Mercedes GLK220 CDI d
Model
GLK-Class
Variant
GLK220 CDI d
Fuel
Diesel
Engine
OM651
Capacity
2.1L I4
Generation
X204 (2008–2015)
Rebuild From
£2,200
Not sure which engine you have?
The GLK220 CDI D 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 GLK220 CDI dEngine Rebuild Price
Starting From £2,200

Engine Code
OM651Rebuild From
£2,200

Generation
X204 (2008–2015)
Exact price depends on condition and parts required — submit your reg for a fixed-price quote.
Mercedes GLK220 CDI/d Injector Seal & Timing Chain Wear (OM651)
If your GLK220 CDI/d has the OM651 2.1-litre diesel — that's the X204 generation, produced from 2008 to 2015 — injector seal leaks and timing chain/tensioner wear are well-documented patterns on this engine, shared across the C-Class family and backed by multiple manufacturer technical service bulletins. We replace the timing chain, injector seals and gaskets as standard on every OM651 rebuild.
include_in_hero_hook: yes for OM651 — Source: established specialist pattern, per VRF-mercedes-glk-class.md. Only confirmed for OM651 diesel variant.
Source: established specialist pattern, per VRF-mercedes-glk-class.md. Only confirmed for OM651 diesel variant

Mercedes GLK220 CDI dENGINE OPTIONS
Every GLK220 CDI D is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR GLK220 CDI D ENGINE
We rebuild the engine your GLK220 CDI D 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 GLK220 CDI D 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 GLK220 CDI D ENGINES
Restoring your existing engine to full working condition rather than replacing it outright. Our rebuild service covers this.
Learn moreREMANUFACTURED GLK220 CDI D ENGINES
Built to original specification with updated components. That's consistent with what our rebuild service delivers on the M256.
Learn moreREPLACEMENT GLK220 CDI D 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 GLK220 CDI D 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 GLK220 CDI D, honestly.
Ask About Your OptionsOUR 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 GLK220 CDI d rebuild looks like.
Mercedes GLK220 CDI d ENGINE REBUILD PROCESS
WHAT MERCEDES GLK220 CDI D OWNERS SAY
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your GLK220 CDI D has the M256, along with an exact rebuild price.
WHY MERCEDES GLK220 CDI D OWNERS CHOOSE US
Engine matched using VIN or registration number — confirms your OM651 before you're quoted
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
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 GLK220 CDI d
RECOVERY

Mercedes GLK-Class 63
DIAGNOSTICS

Mercedes GLK-Class
STRIPPED ENGINE

Mercedes GLK-Class S
TIMING CHAIN REPLACEMENT

Mercedes GLK220 CDI d
IN FOR REBUILD

Mercedes GLK-Class C
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most GLK-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 GLK220 CDI D 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 GLK220 CDI D ENGINE

The GLK220 CDI/d is the diesel mainstay of the GLK-Class range, produced from 2008 to 2015 across the single-generation X204 chassis. It uses the OM651 2.1-litre inline-four diesel — an engine shared widely across Mercedes models of that era, including the C-Class and E-Class families. The GLK-Class was discontinued in 2015 and succeeded by the GLC, but we continue to rebuild and replace engines for every one still on the road.
We continue to rebuild and replace M256 engines for every GLK220 CDI D on the road.
MERCEDES GLK220 CDI D ENGINE CODES

M256 (R190, 2023–present)
A 3.0-litre inline-six petrol mild-hybrid engine fitted to the GLK220 CDI D 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 GLK220 CDI DMERCEDES GLK220 CDI D ENGINE COMPATIBILITY

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 GLK-Class quote — it protects you from paying for parts that don't fit your actual car.
MERCEDES GLK220 CDI D APPLICATIONS BY GENERATION
MERCEDES GLK220 CDI D ENGINES BY YEAR
From the R190's launch in 2023, the GLK220 CDI D 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 GLK220 CDI D 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 GLK220 CDI D MODEL YEAR:
Mercedes GLK220 CDI d
2008 Engine Rebuild
Mercedes GLK220 CDI d
2009 Engine Rebuild
Mercedes GLK220 CDI d
2010 Engine Rebuild
Mercedes GLK220 CDI d
2011 Engine Rebuild
Mercedes GLK220 CDI d
2012 Engine Rebuild
Mercedes GLK220 CDI d
2013 Engine Rebuild
Mercedes GLK220 CDI d
2014 Engine Rebuild
Mercedes GLK220 CDI d
2015 Engine Rebuild
If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.
MERCEDES GLK220 CDI D ENGINE COSTS
A Mercedes GLK220 CDI d 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 GLK220 CDI D ENGINE SIZES
• Mercedes GLK220 CDI d 3.0 Litre Engine (M256, I6)
MERCEDES GLK220 CDI D FUEL TYPES
• Mercedes GLK220 CDI d Petrol Mild Hybrid Engine Rebuilds
RELATED MERCEDES GLK-CLASS VARIANTS
Most Mercedes GLK-Class engine rebuilds are completed within 3-5 working days.
Nationwide recovery and collection available for all GLK-Class models.









