Mercedes M133 Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 2.0-litre turbocharged inline-4 petrol engine fitted to high-performance Mercedes-AMG compact models from 2013 to 2019, including the A45, CLA45, and GLA45. Reconditioned Mercedes M133 units are typically available from £8,000 , reflecting the specialist nature of AMG engine replacement and consistent demand for this high-performance platform.
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Mercedes M133 - Specifications at a Glance
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Minimum 12-month warranty on reconditioned and rebuilt options
Which Mercedes Models Use the M133-
| Model | Generation/Chassis | Badge(s) | Years | Link |
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M133 is documented across 0 BMW applications spanning . Registration lookup confirms the exact suffix before quotes are sent.
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Mercedes M133 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 M133 typically takes 12-16 hours at £65/hr (independent specialist rate) - confirm exact labour when comparing quotes, as the AMG-specific turbo plumbing and thermal management components require careful access planning.
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Mercedes M133 Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the M133, based on real-world data and verified failure patterns.
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How to Confirm You Have the Mercedes M133
The M133.980 engine code is stamped directly onto a machined pad on the engine block, typically located near the oil filter housing or the bell housing. It is also clearly listed on your vehicle's V5C registration document under "Engine Number" and can be decoded from the full VIN. **Common Confusion Warning:** Owners frequently confuse the M133 with other Mercedes 2.0-litre engines: - **M139**: The direct 2.0L AMG successor introduced in 2019. While similar in displacement, the M139 features a completely different block architecture, revised turbo sizing, and updated engine management, making it incompatible as a direct swap. - **M270** and **M274**: The standard 2.0L turbocharged engines found in non-AMG models. These lack the M133's forged internals, AMG-specific turbocharger, and high-performance ECU mapping. Fitting an M139, M270, or M274 as a direct replacement will result in severe ECU, wiring loom, and exhaust manifold incompatibilities.
Not 100% sure- Enter your registration above - we'll confirm your exact M133 fitment before any quotes are sent.
The M133.980 engine code is stamped directly onto a machined pad on the engine block, typically located near the oil filter housing or the bell housing. It is also clearly listed on your vehicle's V5C registration document under "Engine Number" and can be decoded from the full VIN.
- **M139**: The direct 2.0L AMG successor introduced in 2019. While similar in displacement, the M139 features a completely different block architecture, revised turbo sizing, and updated engine management, making it incompatible as a direct swap.
- **M270** and **M274**: The standard 2.0L turbocharged engines found in non-AMG models. These lack the M133's forged internals, AMG-specific turbocharger, and high-performance ECU mapping.
Confirm the exact M133 fitment
Not 100% sure- Enter your registration above - we'll confirm your exact M133 fitment before any quotes are sent.
Buying a Replacement Mercedes M133 - 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:
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Vehicle Value Note:
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Explore engines that are closely related to the Mercedes M133, including its predecessor, successor, and key family variants.
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