Mercedes GLE300dEngine Rebuild— From £3,200
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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 GLE300d Engine
Vehicle
Mercedes GLE300d
Model
GLE-Class
Variant
GLE300d
Fuel
Diesel
Engine
OM642, OM654 or OM656
Capacity
2.0L–3.0L
Generation
W166 (2015–2019) · V167 (2019–present)
Rebuild From
£2,800
Not sure which engine you have?
The GLE300D 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 GLE300dEngine Rebuild Price
Starting From £2,800
Engine Code
M256Rebuild From
£3,200
Generation
R190 (2023–present)
Exact price depends on condition and parts required — submit your reg for a fixed-price quote.
Mercedes GLE300d Swirl Flap & Injector Wear (W166, OM642)
If your GLE300d is a pre-2019 model with the OM642 diesel V6 — that's the W166 generation — swirl flap and injector wear is a well-documented pattern on this engine, backed by multiple manufacturer technical service bulletins. We replace worn swirl flaps, injector seals and the timing chain as standard on every OM642 rebuild.
The newer V167 generation uses different engines — the OM654 or OM656 — which don't share this specific issue. They're a separate, more recent design, and while they may show their own wear patterns at higher mileage, nothing as consistently documented as the older engine's swirl flap pattern is confirmed for this application.
Source: established specialist pattern, multiple TSBs, per VRF-mercedes-gle-class.md. OM654 and OM656 explicitly excluded from this claim per VRF
Mercedes GLE300dENGINE OPTIONS
Every GLE300D is different. That's why we offer the right solution for your engine, your car and your budget.
REBUILDING YOUR GLE300D ENGINE
We rebuild the engine your GLE300D 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 GLE300D 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 GLE300D ENGINES
Restoring your existing engine to full working condition rather than replacing it outright. Our rebuild service covers this.
Learn moreREMANUFACTURED GLE300D ENGINES
Built to original specification with updated components. That's consistent with what our rebuild service delivers on the M256.
Learn moreREPLACEMENT GLE300D 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 GLE300D 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 GLE300D, 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 GLE300d rebuild looks like.
Mercedes GLE300d ENGINE REBUILD PROCESS
WHAT MERCEDES GLE300D OWNERS SAY
WE COVER YOUREXACT VEHICLE
Enter your registration below and we'll confirm your GLE300D has the M256, along with an exact rebuild price.
WHY MERCEDES GLE300D OWNERS CHOOSE US
Engine matched using VIN or registration number — confirms OM642 vs OM654 vs OM656 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 GLE300d
RECOVERY
Mercedes GLE-Class 63
DIAGNOSTICS
Mercedes GLE-Class
STRIPPED ENGINE
Mercedes GLE-Class S
TIMING CHAIN REPLACEMENT
Mercedes GLE300d
IN FOR REBUILD
Mercedes GLE-Class C
REBUILD IN PROGRESS
HOW IT WORKS
SEND YOURREGISTRATION
RECEIVE YOURFIXED-PRICE QUOTE
WE RECOVERYOUR CAR
REBUILD &REFIT
Most GLE-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 GLE300D 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 GLE300D ENGINE
The GLE300d has been part of the GLE-Class range since the model's renaming from M-Class in 2015, and across its two generations has used three different diesel engines — from the OM642 V6 through to today's OM656 inline-six. The full breakdown by engine code is below.
We continue to rebuild and replace M256 engines for every GLE300D on the road.
MERCEDES GLE300D ENGINE CODES
M256 (R190, 2023–present)
A 3.0-litre inline-six petrol mild-hybrid engine fitted to the GLE300D 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 GLE300DMERCEDES GLE300D ENGINE COMPATIBILITY
Because the GLE300d spans three distinct engines across two generations, fitting the wrong replacement — or assuming an OM642 part will work on a V167 car — risks a compatibility problem that's expensive to unpick. Before we quote or supply anything, we confirm: - Your exact engine code (OM642, OM654 or OM656) via registration or VIN - Your generation (W166 or V167) - Drivetrain and ancillary specification - Any electronics or ECU considerations specific to your exact build
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 GLE-Class quote — it protects you from paying for parts that don't fit your actual car.
MERCEDES GLE300D ENGINES BY YEAR
From the R190's launch in 2023, the GLE300D 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 GLE300D 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 GLE300D MODEL YEAR:
Mercedes GLE300d
2015 Engine Rebuild
Mercedes GLE300d
2016 Engine Rebuild
Mercedes GLE300d
2017 Engine Rebuild
Mercedes GLE300d
2018 Engine Rebuild
Mercedes GLE300d
2019 Engine Rebuild
Mercedes GLE300d
2020 Engine Rebuild
Mercedes GLE300d
2021 Engine Rebuild
Mercedes GLE300d
2022 Engine Rebuild
Mercedes GLE300d
2023 Engine Rebuild
Mercedes GLE300d
2024 Engine Rebuild
Mercedes GLE300d
2025 Engine Rebuild
Mercedes GLE300d
2026 Engine Rebuild
If your registration year isn't listed above, get in touch — we'll confirm availability directly against your reg.
MERCEDES GLE300D ENGINE COSTS
A Mercedes GLE300d engine rebuild starts from
£2,800
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 GLE300D ENGINE SIZES
• Mercedes GLE300d 3.0 Litre Engine (M256, I6)
MERCEDES GLE300D FUEL TYPES
• Mercedes GLE300d Petrol Mild Hybrid Engine Rebuilds
RELATED MERCEDES GLE-CLASS VARIANTS
Most Mercedes GLE-Class engine rebuilds are completed within 3-5 working days.
Nationwide recovery and collection available for all GLE-Class models.