Mercedes M264 Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 2.0-litre turbocharged petrol engine fitted to modern Mercedes-Benz core models from 2017 onwards, including the C-Class, E-Class, and GLC. Reconditioned Mercedes M264 units are available from £3,500 , reflecting consistent specialist demand for this modern platform.
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Mercedes M264 - Specifications at a Glance
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Minimum 12-month warranty on reconditioned and rebuilt options
Which Mercedes Models Use the M264-
| Model | Generation/Chassis | Badge(s) | Years | Link |
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M264 is documented across 0 BMW applications spanning . Registration lookup confirms the exact suffix before quotes are sent.
Not sure which engine your car has- Enter your registration above - we'll confirm your exact M264 fitment before any quotes are sent.
Mercedes M264 Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
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All pricing guidance shown here is indicative.
Fitting a Mercedes M264 typically takes 10-14 hours at £65/hr (independent specialist rate) - confirm exact labour when comparing quotes.
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Mercedes M264 Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the M264, based on real-world data and verified failure patterns.
Real-world failure data and repair guidance from UK specialists.
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How to Confirm You Have the Mercedes M264
The M264 engine code is stamped directly onto the engine block, typically located on a machined pad near the oil filter housing or on the cylinder head. It is also clearly listed on your vehicle's V5C registration document under "Engine Number" and can be decoded from the full VIN via a Mercedes dealer or online checker. **Common Confusion Warning:** Owners frequently confuse the M264 with its predecessor, the M274, or the smaller M260. While they share a similar modular architecture, the M264 features a revised turbocharger setup, updated engine management software, and, in many applications, the integrated 48V ISG system. Fitting an M274 or M260 as a direct replacement will result in ECU incompatibility, wiring loom mismatches, and potential mounting issues.
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The M274 it replaced featured a similar modular architecture but lacked the integrated 48V mild-hybrid system and had different turbocharger mounting points.
The smaller displacement predecessor found in A-Class and CLA models, which shares some architectural DNA but is not a direct swap for the M264.
The latest evolution of this modular family, featuring further electrification and updated thermal management to address earlier cooling vulnerabilities.
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Buying a Replacement Mercedes M264 - What to Choose
Choosing the right replacement route depends on your budget, risk tolerance, and ownership goals. Here's a breakdown of your options.
Used:
Reconditioned:
Rebuilt:
Supply & Fit Line:
Vehicle Value Note:
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Engines Related to the Mercedes M264
Explore engines that are closely related to the Mercedes M264, including its predecessor, successor, and key family variants.
M274
The M274 it replaced featured a similar modular architecture but lacked the integrated 48V mild-hybrid system and had different turbocharger mounting points.
M270
The smaller displacement predecessor found in A-Class and CLA models, which shares some architectural DNA but is not a direct swap for the M264.
M254
The latest evolution of this modular family, featuring further electrification and updated thermal management to address earlier cooling vulnerabilities.
M260
The 1.3-litre variant of this modern modular family, suited for lighter compact models rather than the mid-size applications of the M264.
Mercedes M264Frequently Asked Questions
Question 1How much does a Mercedes M264 engine replacement cost in the UK-
A Mercedes M264 engine replacement typically costs between £3,500 and £6,000 for a reconditioned supply-only unit . Fitted costs generally add £650-£910 for independent specialist labour, and fully rebuilt units with upgraded components can reach £5,000-£8,000 supply-only.
Compare M264 engine replacement quotes from vetted UK specialists.Question 2What is the most common failure with the Mercedes M264 engine-
The most documented failure pattern for the M264 is cylinder head cracking, particularly in the valve bridge area, leading to internal coolant loss and misfires. Early warning signs include unexplained coolant drops and white exhaust smoke, and in 48V mild-hybrid models, Integrated Starter Generator (ISG) seal failures can also cause internal contamination.
Get quotes for a rebuilt M264 with these known weaknesses addressed.Question 3Which Mercedes models use the M264 engine-
The M264 is fitted to core Mercedes-Benz models from 2017 onwards, including the C-Class (W205), E-Class (W213), GLC (X253), and A-Class (W177). It powers badges ranging from the C200 and C300 to the GLC300 and E350, and you should always verify your exact fitment via registration lookup, as some markets or late-build models may use the newer M254.
Confirm your exact M264 fitment before requesting a quote.Question 4Should I buy a used or reconditioned Mercedes M264 engine-
A reconditioned Mercedes M264 is strongly recommended over a used unit due to the known cylinder head cracking and 48V ISG contamination risks. Used units carry a high risk of inheriting the same latent defects unless accompanied by stamped proof of preventative head replacement, whereas reconditioned units include updated cylinder heads and revised ISG seals, providing a reliable long-term solution.
View our reconditioned Mercedes M264 engine options with 12-month warranties.Question 5How do I know if my car has the M264 and not the M274 or M260-
The M264 engine code is stamped on the engine block near the oil filter housing and is listed on your V5C registration document. It is commonly confused with the older M274 or the smaller M260, but these are not direct interchange replacements due to ECU and wiring loom differences, and fitting the wrong revision will result in compatibility errors and potential mounting issues.
Enter your registration above to confirm your exact M264 engine code.Compare Mercedes M264 Engine Prices Today
Get a free, no-obligation comparison for your exact Mercedes M264 engine code and sub-code. Our registration lookup confirms your precise fitment before any quotes are sent, ensuring you receive accurate pricing for your specific vehicle. With reconditioned M264 units starting from an estimated £3,500, comparing specialist quotes takes just two minutes and could save you hundreds on your replacement.
Vetted UK specialists for M264 replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Nationwide delivery plus supply and fit availability
Secure enquiry - no spam. Quotes only from vetted UK engine specialists.
Secure enquiry - no spam. Quotes only from vetted UK engine specialists.
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