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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Get quotes today from trusted UK Mercedes Benz SLS AMG engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available.
-> Rebuilt units from £14,995 · Common codes: M159.970, M159.971, M159.972
-> Rebuilt units from £18,500 · Common codes: M159.972, M159.973, M159.970
-> Rebuilt units from £28,000 · Common codes: M159.974, M159.97E, M159.973
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Get Instant Quotes from Mercedes - Benz Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
The table below shows typical UK rebuilt engine costs across Mercedes Benz SLS AMG variants, covering documented failure causes, chassis generations, engine codes, and fuel types based on current market data.

Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Mercedes Benz SLS AMG engines through EngineMarket.
Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Pete
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
- Jimmy, London
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From the SLS AMG Coupe to the track‑focused Black Series, our network of UK Mercedes Benz SLS AMG engine specialists lets you compare rebuilt, reconditioned and used engine prices. Typical rebuilt units range from £14,500 to £41,000 with 12‑month warranty - supply & fit available nationwide.
A full alphabetical listing of every Mercedes Benz SLS AMG trim covered by our network. All entries link to a dedicated variant page, where prices are further broken down by engine code, model year, and condition type. Click a live link to compare quotes.
Petrol Variants
Every engine code fitted to the Mercedes Benz SLS AMG across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across Mercedes Benz SLS AMG variants.
Extracted from electrified powertrains and hybrid engine families used in Mercedes Benz SLS AMG variants.
Can't find your engine code? Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Mercedes Benz SLS AMG engine specialists. Every rebuilt engine comes with a minimum 12‑month unlimited mileage warranty.
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why M159 Engines Burn Oil at High Mileage
Mercedes Benz SLS AMG Coupe (M159.970), Roadster (M159.971) (2010-2014)
45,000 - 75,000 miles
The original piston ring tension loses elasticity under sustained high‑temperature operation, allowing oil to bypass into the combustion chambers and increasing crankcase pressure.
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - PCV & Seal Refresh Minor | £1,800 - £2,600 | £1,200 - £1,800 | Replaces crankcase ventilation valves, external gaskets, and valve stem seals to manage pressure without engine removal. | Temporary mitigation only. Viable if oil consumption is under 1 litre per 1,000 miles and rings are intact. |
Major - Piston Ring Replacement Minor | £12,500 - £16,000 | £8,500 - £11,500 | Engine strip‑down, honing cylinders, fitting revised A1590300001 piston rings, and reassembling with fresh bearings. | Cost‑prohibitive on a V8 requiring full disassembly. Only recommended if the short block is otherwise pristine. |
Full Replacement - Rebuilt / Reconditioned Engine Best Value | £22,000 - £28,000 | £14,500 - £21,000 | Supply & fit of a dyno‑certified rebuilt M159 engine featuring upgraded piston rings, refreshed valvetrain, and full ECU recalibration. | Best long‑term value. Restores factory performance with collector‑grade warranty and documented provenance. |
On an ultra‑premium SLS AMG, stripping the M159 for a ring replacement is rarely economical due to the intensive labour and ancillary parts required. We recommend proceeding directly to a rebuilt engine if consumption exceeds 1 litre per 1,000 miles or blue smoke is present on cold starts. The rebuilt unit includes revised rings as standard, eliminating recurrence risk.
The M159 6.2L V8 is an engineering masterpiece, but its high‑performance architecture demands precision maintenance and specialist intervention when critical components reach end‑of‑life. EngineMarket connects you with accredited UK rebuilders who understand collector‑grade standards, offering dyno‑certified replacements that outperform patch repairs. Every quote includes transparent supply & fit pricing, upgraded internal components to eliminate known weak points, and nationwide enclosed delivery to protect your vehicle’s finish. Compare prices from vetted Mercedes Benz SLS AMG specialists and secure a 12‑month unlimited mileage warranty without paying main dealer premiums.
Compare Mercedes Benz SLS AMG Engine Replacement Prices Now →Mercedes Benz SLS AMG Coupe (M159.970), Roadster (M159.971) (2010-2014)
45,000 - 75,000 miles
The original piston ring tension loses elasticity under sustained high‑temperature operation, allowing oil to bypass into the combustion chambers and increasing crankcase pressure.
Replaces crankcase ventilation valves, external gaskets, and valve stem seals to manage pressure without engine removal.
Engine strip‑down, honing cylinders, fitting revised A1590300001 piston rings, and reassembling with fresh bearings.
Supply & fit of a dyno‑certified rebuilt M159 engine featuring upgraded piston rings, refreshed valvetrain, and full ECU recalibration.
On an ultra‑premium SLS AMG, stripping the M159 for a ring replacement is rarely economical due to the intensive labour and ancillary parts required. We recommend proceeding directly to a rebuilt engine if consumption exceeds 1 litre per 1,000 miles or blue smoke is present on cold starts. The rebuilt unit includes revised rings as standard, eliminating recurrence risk.
The M159 6.2L V8 is an engineering masterpiece, but its high‑performance architecture demands precision maintenance and specialist intervention when critical components reach end‑of‑life. EngineMarket connects you with accredited UK rebuilders who understand collector‑grade standards, offering dyno‑certified replacements that outperform patch repairs. Every quote includes transparent supply & fit pricing, upgraded internal components to eliminate known weak points, and nationwide enclosed delivery to protect your vehicle’s finish. Compare prices from vetted Mercedes Benz SLS AMG specialists and secure a 12‑month unlimited mileage warranty without paying main dealer premiums.
Compare Mercedes Benz SLS AMG Engine Replacement Prices Now →Disclaimer: All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EngineMarket’s UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Mercedes Benz SLS AMG and engine code. Every engine supplied through EngineMarket carries a minimum 12‑month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Every condition is available through our uk specialist network with typical price ranges reflecting variant, m159 code and collector budget.
All engine types include a minimum 12‑month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Mercedes Benz SLS AMG within hours.
Every displacement fitted to the Mercedes Benz SLS AMG is listed below with compatible M159 engine codes, production years and documented failure points to help you identify the correct replacement unit.
The hand‑built M159 6.2L naturally aspirated V8 is the sole petrol powerplant fitted to every SLS AMG variant from launch Coupe to Final Edition, representing AMG's one‑man‑one‑engine philosophy with dry sump lubrication on performance variants and Euro 5 emissions compliance across the 2010‑2014 production run. Not sure which engine size your Mercedes Benz SLS AMG needs? Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Mercedes Benz SLS AMG specialists.
| Engine Code(s) | M159.970, M159.971, M159.972, M159.973, M159.974 |
| Compatible Models (UK) | Coupe (C197, 2010-2014), Roadster (R197, 2011-2014), GT (2012-2014), GT Final Edition (2014), Black Series |
| Production Years | 2013 |
Piston ring wear causing oil consumption, timing chain tensioner wear on early 2010-2011 units, valve train fatigue on high‑RPM track use
Not sure which engine size your Mercedes Benz SLS AMG needs? Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Mercedes Benz SLS AMG specialists.
Mercedes Benz SLS AMG Engines Fuel Type
Choose your Mercedes Benz SLS AMG engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the launch 2010 Coupe to the limited 2014 Final Edition and rare E-Cell electric variant.
The hand‑built M159 6.2L naturally aspirated V8 is the sole combustion engine fitted to every UK SLS AMG variant, representing AMG's one‑man‑one‑engine philosophy across Coupe, Roadster, GT and Black Series models from 2010‑2014.
Not sure which fuel type your Mercedes Benz SLS AMG has? Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12‑month unlimited mileage warranty from UK Mercedes Benz SLS AMG specialists.
This technical timeline covers every major engine change across the Mercedes Benz SLS AMG's 2010-2014 production run, organised so UK owners can quickly identify their M159 engine code and compare rebuilt engine prices from accredited specialists.
Not sure which year your Mercedes Benz SLS AMG was built? Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12‑month warranty from UK Mercedes Benz SLS AMG specialists.
FAQ
Question 1
Mercedes Benz SLS AMG engine replacement costs typically range from £14,500 to £41,000 for rebuilt units, depending on variant specification and exact M159 engine code fitted. Pricing reflects hand-built AMG one-man-one-engine specifications, comprehensive dyno certification, and collector-grade unlimited mileage warranty coverage from accredited UK specialists.
Key points
Question 2
Mercedes Benz SLS AMG models exclusively use hand-built M159 family engine codes: M159.970 for standard Coupe, M159.971 for Roadster, M159.972/973 for GT variants, M159.974 for Black Series, and M159.97E for the rare E-Cell electric powertrain. Exact code matching via DVLA registration ensures AMG calibration compatibility and collector-grade provenance documentation.
Key points
Question 3
The Mercedes Benz SLS AMG M159 6.2L V8 is fundamentally robust when properly maintained, though high-mileage examples commonly develop piston ring wear causing oil consumption and early production units experienced timing chain tensioner wear. Regular specialist servicing and addressing known TSB updates significantly extends engine lifespan for collector ownership.
Key points
Question 4
Oil consumption in Mercedes Benz SLS AMG M159 engines primarily stems from piston ring wear allowing oil bypass into combustion chambers, particularly on high-mileage examples above 45,000 miles. External oil cooler seal leaks and valve stem seal degradation can also contribute to visible oil loss without internal engine damage requiring immediate replacement.
Key points
Question 5
Early production Mercedes Benz SLS AMG models from 2010-2011 can experience timing chain tensioner wear causing cold start metallic rattling, though revised component A1590500001 resolves this issue. Later production M159 engines from 2012 onwards benefit from updated tensioner design and rarely exhibit timing-related concerns when maintained with correct oil specifications and service intervals.
Key points
Question 6
Fitting a Mercedes Benz SLS AMG M159 engine requires AMG-accredited specialist expertise, proprietary tools, and dyno calibration equipment not available to home mechanics. Incorrect installation voids warranty, risks MOT emissions failure, and can damage the AMG Speedshift MCT transmission, making professional supply and fit the only viable option for collector-grade replacement.
Key points
Question 7
Reconditioned Mercedes Benz SLS AMG engines supplied through EngineMarket include minimum 12-month unlimited mileage warranty covering parts and labour, with many AMG-affiliated specialists offering extended 24-36 month collector-grade coverage. Warranty terms require installation by accredited technicians, dyno certification documentation, and adherence to AMG-spec servicing intervals to maintain investment-grade protection for your halo vehicle.
Key points
Question 8
Yes, replacement Mercedes Benz SLS AMG engines pass MOT emissions when rebuilt to Euro 5 specifications with correct M159 calibration coding and lambda sensor functionality. Accredited specialists provide emissions certification documentation and post-installation dyno verification to ensure your SLS AMG meets UK MOT requirements without failed tests after expensive engine replacement investment.
Key points
Question 9
Replacing the engine in a Mercedes Benz SLS AMG is financially viable given the model's collector status and appreciating values, with rebuilt M159 units costing £14,500-£41,000 versus £80,000+ for clean examples. Investment-grade documentation, dyno certification, and unlimited warranty preserve provenance while restoring performance, making replacement preferable to parting out for most UK owners.
Key points
Question 10
EngineMarket connects Mercedes Benz SLS AMG owners with vetted UK specialists holding AMG accreditation, dyno certification equipment, and collector-grade handling protocols for M159 engine replacement. Our comparison tool provides transparent pricing, warranty terms, and enclosed delivery options from accredited rebuilders experienced with hand-built AMG specifications and provenance documentation requirements.
Key points
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