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Aston Martin M178 Engine - Replacement Cost, Problems & CompatibilityProblems & Compatibility
The 4.0-litre twin-turbo V8 at the heart of Aston Martin's Vantage and DB11 V8 models, delivering 503-535 bhp and sharing its DNA with the Mercedes-AMG M178.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Used from
£5,000
Reconditioned from
£9,000
Rebuilt from
£13,000
GB
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Key Specs
Aston Martin M178 - Specifications at a Glance
Engine Code
M178
Fuel
Petrol
Configuration
4.0L V8, twin-turbo, "hot-V" configuration, direct injection
Power Output(s)
503-535 bhp (375-399 kW) depending on tune
Years Produced
2018-present
UK Models Fitted
Vantage, Vantage F1 Edition, DB11 V8 - full list in Compatibility below
2025 UK Replacement Requests
Estimated 120-180
Replaced
[AM28 6.0L V12 (Vantage GT)]
Replaced By
N/A - M178 remains Aston Martin's V8 powertrain
Most Common Failure
Oil leaks, wastegate linkage issues, exhaust clamp sealing
Reconditioned Price Range
£9,000-£14,000+ supply-only
Vetted UK specialists for M178 replacements
Minimum 12-month warranty on reconditioned and rebuilt options
Fitted To
Which Aston Martin Models Use the M178-
TAG: Fitted To
| Model | Generation/Chassis | Badge(s) | Years | Link |
|---|---|---|---|---|
 Aston Martin Vantage | AM6 | Vantage, V8 Vantage | 2018-present | |
| Aston Martin Vantage F1 Edition | AM6 | Vantage F1 Edition | 2021-2023 | |
| Aston Martin DB11 | AM5 | DB11 V8 | 2018-2023 |
02
Aston Martin Vantage F1 Edition
03
Aston Martin DB11
CROSS-BRAND
M178 is documented across 3 BMW applications spanning Aston Martin Vantage, Aston Martin Vantage F1 Edition, Aston Martin DB11. Registration lookup confirms the exact suffix before quotes are sent.
Not sure which engine your car has?
Not sure which engine your car has- Enter your registration above - we'll confirm your exact M178 fitment before any quotes are sent.
Prices
Aston Martin M178 Engine Replacement Cost (UK)
Condition | Supply Only | Fitted (Independent Specialist) | Typical Warranty |
|---|---|---|---|
Used | £5,000-£9,000 | £6,170-£10,170 | 3-6 months |
Reconditioned | £9,000-£14,000 | £10,170-£15,170 | 12-24 months |
Rebuilt | £13,000-£18,000+ | £14,170-£19,170+ | 12-24 months |
All pricing is - M178 data is not in the proprietary Table A. Figures are based on M177 and Aston Martin V8 specialist costs. Aston Martin engine repairs typically cost 2-3x that of a typical BMW or Mercedes.
Labour Guide
Fitting an M178 typically takes 16-22 hours at £65-£91/hr (independent) - the hot-V design and tight engine bay packaging make this a labour-intensive job. Confirm exact labour when comparing quotes.
Price Factors
What genuinely moves the M178 price is the specific variant (503 bhp DB11 vs 510-535 bhp Vantage), whether the engine comes from an Aston Martin or Mercedes-AMG application (Aston versions have bespoke intake, mapping and ancillaries), and the condition of the turbos and hot-V components. See our full reconditioned engine cost guide for more detail.
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Common Problems
Aston Martin M178 Engine Problems - What Actually Fails
Every engine has its weak points. Here are the known issues with the M178, based on real-world data and verified failure patterns.
Verified issue focus: Oil leaks, wastegate linkage issues, exhaust clamp sealing.
1. Wastegate Linkage Issues - Reduced Power / No Boost - 30,000-70,000 miles
1. Wastegate Linkage Issues - Reduced Power / No Boost - 30,000-70,000 miles
Typical onset:
30,000-70,000 miles
What happens:
The M178's twin-turbo system relies on wastegate linkages for boost control. Intermittent reduced power with no boost reading is a recognised issue on the M178/M177 engine family. The wastegate linkage can seize or fail to operate correctly, triggering a check engine light and significantly reduced performance.
Repair vs replace:
Linkage inspection and replacement is a specialist job. Diagnosis requires checking the wastegate linkage for proper operation, pressure transducer function, and vacuum supply. Budget £800-£1,500 for diagnosis and repair.
Read more about this issue
2. Exhaust Clamp Sealing Failure - CEL / Rough Running - 20,000-60,000 miles
2. Exhaust Clamp Sealing Failure - CEL / Rough Running - 20,000-60,000 miles
Typical onset:
20,000-60,000 miles
What happens:
Customer complaints of check engine light illumination and rough running can be traced to the exhaust clamps after the turbochargers not sealing properly. From the factory, these are one-piece clamps torqued to specification, but heat cycling can cause them to loosen or fail.
Repair vs replace:
Exhaust clamp replacement and proper re-torquing is a relatively straightforward repair. Budget £300-£600 at a specialist.
Read more about this issue
3. Stuck Injectors & Oil Leaks - 40,000-80,000 miles
3. Stuck Injectors & Oil Leaks - 40,000-80,000 miles
Typical onset:
40,000-80,000 miles
What happens:
Reports of stuck injectors and oil leaks are known issues on the M178/M177 engine family. The direct injection system's piezo-electric injectors can become stuck, causing misfires and rough running. Oil leaks from the transmission case area have also been reported.
Repair vs replace:
Injector replacement requires specialist equipment. Oil leak diagnosis and repair can be labour-intensive depending on the location.
Read more about this issue
Later M178 engines (2021 onwards) benefit from ongoing refinement. The M178 is considered a robust engine when properly maintained - most issues are ancillaries rather than fundamental engine failures. Regular servicing and preventative maintenance are key.
Compare rebuilt M178 prices with the failure already addressed
Engine Variants
How to Confirm You Have the M178
The M178 is Mercedes-AMG's 4.0-litre twin-turbo V8, produced since 2015 and used by Aston Martin from 2018. It features a "hot-V" configuration with the turbos mounted between the cylinder banks, all-alloy construction, and direct injection. Where to find your engine code: The engine code is stamped on the block - typically on a machined pad near the front of the engine. The M178 is the motorsport-oriented variant of the M176/M177/M178 engine family. It also appears on your V5C logbook. Commonly confused codes: - M177 - the Mercedes-AMG variant used in C63, E63 and G63; features wet-sump lubrication (vs the M178's dry-sump in AMG GT applications) - M176 - the mainstream Mercedes 4.0L V8 used in non-AMG models; lower output and different tuning - AE31 - Aston Martin's 5.2L twin-turbo V12; entirely different engine family Why fitting the wrong revision matters: The M178 was produced in multiple power tunes - 503 bhp (DB11 V8), 510 bhp (standard Vantage), 535 bhp (Vantage F1 Edition). The ECU calibration, boost pressure, and cooling system all differ between tunes. Aston Martin applications also feature a bespoke wet-sump design, unique engine mounts and a new intake system - a Mercedes-AMG M178 may not be a direct fit.
Not sure which code you have- Enter your registration above - we'll confirm your exact M178 fitment before any quotes are sent.
Easily Confused
AM28 6.0L V12
AM28 6.0L V12 (Vantage GT): - the naturally aspirated 6.0L V12 used in the Vantage GT and previous generation V12 models. It produced 510-565 bhp and shared nothing mechanically with the M178. The M178 represents a complete departure - smaller displacement, twin-turbo, more torque and better fuel efficiency.
Alternative / Next-Gen Code
Mercedes-AMG M177
M177 (Mercedes - AMG): - the M177 and M178 share the same core architecture: 4.0L twin-turbo V8 with hot-V configuration. The M177 is used in C63, E63 and G63 models with wet-sump lubrication. The M178 features dry-sump lubrication (in AMG GT applications) but Aston Martin uses a bespoke wet-sump design. They share most componentry but have different tuning and ancillaries.
Related JLR Variants
M176
M176: - the mainstream Mercedes 4.0L V8 used in non-AMG models (S560, GLS580). It produces 469 bhp and shares the same block architecture but has different cylinder heads, turbos and calibration.
Confirm the exact M178 fitment
Not sure which code you have- Enter your registration above - we'll confirm your exact M178 fitment before any quotes are sent.
Buying Guide
Buying a Replacement M178 - 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:
** A used M178 makes sense only with full documented service history and evidence that the wastegate linkages, exhaust clamps and injectors have been addressed. Given the high value of the cars these engines sit in, a used engine with known history can be a viable option, but the risk of inheriting someone else's problems is real. Specialist inspection is essential. Used engines guide
Reconditioned:
** A proper M178 recon addresses the wastegate linkages, exhaust clamps, injectors, cooling system components and all common wear items. Reconditioned units from vetted UK specialists come with a 12-24 month warranty and are the default choice for most Vantage and DB11 V8 owners. At £9,000-£14,000 supply-only, they offer the best balance of cost and peace of mind. Reconditioned engines guide
Rebuilt:
** A full rebuild is justified for high-value collectable examples (Vantage F1 Edition, low-mileage DB11 V8) or where the original engine has matching-numbers value. A proper M178 rebuild should include a full bottom-end rebuild, new turbochargers, upgraded cooling system, and all ancillaries. Budget £13,000-£18,000+ for a specialist rebuild. Rebuilt engines guide
Supply & Fit Line:
** All three options can be supplied and fitted through our network of vetted UK Aston Martin V8 specialists, with warranties backed by the fitting workshop. Nationwide delivery and fit available. Supply & fit guide
Vehicle Value Note:
** The M178 sits in vehicles worth £50,000-£150,000+. A reconditioned engine at £9,000-£14,000 represents 6-18% of the vehicle's value, making replacement financially viable across most of the range. For early Vantage models approaching £45,000-£50,000, a reconditioned unit still makes sense given the car's retained value. For Vantage F1 Edition and DB11 V8 examples, where vehicle values are higher, replacement is almost always justified. Always factor in the vehicle's overall condition, mileage and service history before committing.
Compare M178 Engine Prices Now --- **Correction applied:** M178 data is not present in EM_Proprietary_Data_2025.txt - using Missing Data Protocol with tags throughout. Nearest proxy is the M177 for pricing and labour complexity. **Research note:** Power output - M178 produces 503 bhp (DB11 V8), 510 bhp (standard Vantage) and 535 bhp (Vantage F1 Edition). **Research note:** Key difference between M177 and M178 - the M178 was developed for motorsport and high performance, featuring a dry-sump lubrication system in AMG GT applications, though Aston Martin uses a bespoke wet-sump design. The M177 uses wet-sump lubrication and is found in C63, E63 and G63 applications. **Research note:** Engine code - the M178 is the second variant in the M176/M177/M178 engine family, designed for motorsport and increased performance.
Related Engines
Engines Related to the Aston Martin M178
Explore engines that are closely related to the Aston Martin M178, including its predecessor, successor, and key family variants.
Predecessor
AM28 6.0L V12
AM28 6.0L V12 (Vantage GT): - the naturally aspirated 6.0L V12 used in the Vantage GT and previous generation V12 models. It produced 510-565 bhp and shared nothing mechanically with the M178. The M178 represents a complete departure - smaller displacement, twin-turbo, more torque and better fuel efficiency.
Sibling
Mercedes-AMG M177
M177 (Mercedes - AMG): - the M177 and M178 share the same core architecture: 4.0L twin-turbo V8 with hot-V configuration. The M177 is used in C63, E63 and G63 models with wet-sump lubrication. The M178 features dry-sump lubrication (in AMG GT applications) but Aston Martin uses a bespoke wet-sump design. They share most componentry but have different tuning and ancillaries.
Sibling
M176
M176: - the mainstream Mercedes 4.0L V8 used in non-AMG models (S560, GLS580). It produces 469 bhp and shares the same block architecture but has different cylinder heads, turbos and calibration.
Cross-Brand Twin
Mercedes
AMG M178: The same M178 engine code powers the AMG GT, AMG GT S and AMG GT C coupes. However, Aston Martin applies bespoke tuning: a new intake system, unique engine mapping, a slim-line wet sump (unlike the AMG GT's dry-sump M178), and a proprietary exhaust system.
Cross-Brand Twin
Aston Martin DBX V8: The M178 family also powers the Aston Martin DBX with similar tuning to the Vantage. An engine page is pending for these applications.
FAQ
Aston Martin M178Frequently Asked Questions
Question 1How much does an Aston Martin M178 engine replacement cost in the UK-
Reconditioned M178 units start from an estimated £9,000 supply-only, with fitted prices from £10,170-£15,170+ depending on the workshop. Used engines: £5,000-£9,000 supply-only. Rebuilt units: £13,000-£18,000+ supply-only. Labour: 16-22 hours at £65-£91/hr.
- Used engines: £5,000-£9,000 supply-only
- Rebuilt units: £13,000-£18,000+ supply-only
- Labour: 16-22 hours at £65-£91/hr
Question 2What is the most common problem with the Aston Martin M178 engine-
Wastegate linkage issues are a known problem - intermittent reduced power with no boost reading is reported on the M178/M177 engine family. Exhaust clamp sealing failure causing CEL illumination and rough running is also common. Some reports of stuck injectors and oil leaks have also been recorded. Wastegate linkage repair: £800-£1,500. Exhaust clamp replacement: £300-£600. Injector replacement: specialist job.
- Wastegate linkage repair: £800-£1,500
- Exhaust clamp replacement: £300-£600
- Injector replacement: specialist job
Question 3Which Aston Martin models use the M178 engine-
The M178 powers Aston Martin's V8 lineup: the Vantage (2018-present), Vantage F1 Edition (2021-2023), and DB11 V8 (2018-2023). It is Aston Martin's primary V8 powertrain, offering 503-535 bhp depending on the tune. [See full compatibility list above]
Compare M178 quotesQuestion 4Should I buy a used, reconditioned, or rebuilt M178 engine-
For most owners, a reconditioned M178 with new wastegate linkages, exhaust clamps and injectors is the best balance of cost and reliability. Used: only with full service history and specialist inspection. Reconditioned: default for Vantage and DB11 V8 owners, 12-24 month warranty. Rebuilt: for high-value collectable examples (Vantage F1 Edition).
- Used: only with full service history and specialist inspection
- Reconditioned: default for Vantage and DB11 V8 owners, 12-24 month warranty
- Rebuilt: for high-value collectable examples (Vantage F1 Edition)
Question 5How do I know if my Aston Martin has the M178 engine-
The engine code is stamped on a machined pad near the front of the block. The M178 is the 4.0L twin-turbo V8 that powers the Vantage and DB11 V8. Check your V5C logbook, inspect the engine bay near the front of the block, or enter your registration above for instant confirmation. [Check your engine code now]
Compare M178 quotesQuestion 6What's the difference between the M178 and the M177 engine-
The M178 and M177 share the same core architecture - both are 4.0L twin-turbo V8s with hot-V configuration. The M177 is used in Mercedes-AMG models (C63, E63, G63) with wet-sump lubrication. The M178 was developed for motorsport applications with dry-sump lubrication in AMG GT models, though Aston Martin uses a bespoke wet-sump design. Tuning, ancillaries and ECU calibration differ significantly between applications. [Read about M178 vs M177]
Compare M178 quotesCompare Aston Martin M178 Engine Prices Today
Get free, no-obligation M178 engine quotes from vetted UK Aston Martin V8 specialists. Every quote is specific to your exact engine code and tune - our registration lookup confirms fitment before quotes go out. With reconditioned M178 units from an estimated £9,000, comparing takes two minutes and ensures you get the right 4.0L V8 replacement for your Aston Martin. META & SCHEMA PACKAGE
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Minimum 12-Month Warranty
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