Mercedes Benz SLS AMG GT Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Mercedes Benz SLS AMG GT engine specialists. Compare prices on reconditioned, rebuilt and used engines for the hand-built 6.2-litre V8 with dry sump lubrication - supply & fit available nationwide with enclosed transport.
Supply & Fit Available
24-Month Warranty
Nationwide Enclosed Delivery
AMG-Accredited Specialists
From £17,000 to £25,000
Used from £10,000 · Reconditioned from £17,000 · Common codes: M159.972
From £10,000
Tested, bare/short engine
From £17,000
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Mercedes SLS AMG GT specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Mercedes Benz SLS AMG GT Replacement Engineto Finding the Best Mercedes Benz SLS AMG GT Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMercedes SLS AMG GT - Engine History & Specs at a Glance
The SLS AMG GT launched in 2012 as the performance-focused evolution of the SLS AMG range, powered by the hand-built M159.972 6.2-litre naturally aspirated V8. With 583hp and 650Nm of torque, the GT represented a significant step up from the standard Coupe's 563hp, featuring revised ECU mapping, enhanced dry sump lubrication for track capability, and a recalibrated AMG SPEEDSHIFT MCT 7-speed transmission. The GT was the choice for owners seeking sharper dynamics and greater track focus.
Variant HistoryMercedes SLS AMG GT - Engine History & Specs at a Glance
The SLS AMG GT launched in 2012 as the performance-focused evolution of the SLS AMG range, powered by the hand-built M159.972 6.2-litre naturally aspirated V8. With 583hp and 650Nm of torque, the GT represented a significant step up from the standard Coupe's 563hp, featuring revised ECU mapping, enhanced dry sump lubrication for track capability, and a recalibrated AMG SPEEDSHIFT MCT 7-speed transmission. The GT was the choice for owners seeking sharper dynamics and greater track focus.
Mercedes SLS AMG GT
Fuel TypePetrol (naturally aspirated V8)
Engine Size6.2L (6,208cc)
Power Output583hp @ 7,400rpmEngine History Timeline
M159.972 6.2L naturally aspirated V8, 583hp @ 7,400rpm, 650Nm torque (SLS AMG GT launch)
2014 - GT production continues alongside standard Coupe and Roadster
End of SLS AMG production; GT becomes a sought-after performance variant
Key Specs Snapshot
Fuel TypePetrol (naturally aspirated V8)Engine Size6.2L (6,208cc)Power Output583hp @ 7,400rpmTorque650Nm @ 5,500rpmYears Produced2012-2014Every engine fitted to the Mercedes SLS AMG GT is covered below, with UK rebuilt pricing and known failure points - from dry sump pump wear and exhaust manifold cracking to valve train fatigue from sustained high-RPM track use.
Mercedes SLS AMG GT Engine Codes - Specifications & Replacement CostMercedes SLS AMG GT Engine Codes - Specifications & Replacement Cost
6.2L Naturally Aspirated V8 (2012-2014)
Power Output583 hp (430 kW) @ 7,400 rpmTorque650 Nm (479 lb-ft) @ 5,500 rpmYears Fitted2012-2014Displacement6,208 ccCylindersV8, 90° V-angle, DOHC, 32-valveEngine CodeM 159.972
Compatible Trim Levels
- SLS AMG GT
- SLS AMG GT RHD UK Specification
- SLS AMG Late Production GT
- SLS AMG GT Performance Trim
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£10,000-£14,000
Reconditioned
Addressed known issues, tested
£17,000-£20,000
Rebuilt
Full teardown, upgraded internals
£18,500-£25,000
Common Failure
Dry sump pump wear affecting oil pressure at high RPM (70k+ miles). Exhaust manifold cracking under thermal cycling stress. Valve train fatigue from sustained high-RPM track use. Piston ring wear accelerated by track driving.
The SLS AMG GT's M159.972 is a hand-built masterpiece - the most powerful naturally aspirated V8 in the SLS range before the Black Series. Its track-focused calibration and dry sump lubrication system create unique challenges. Dry sump pump wear, exhaust manifold cracking, and valve train fatigue are the most critical issues driving replacement enquiries. Every rebuilt engine supplied through EnginesMarket includes upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty with dyno certification and provenance documentation.
The GT's Most Critical Weakness
Affected Vehicles
Mercedes SLS AMG GT (M159.972, 2012-2014)
Typical Failure Mileage
40,000-65,000 miles
Root Cause
The GT's multi-stage dry sump scavenge pump suffers seal degradation and bearing wear under sustained lateral G-forces on track, reducing oil pressure to critical components. This is a critical failure that can destroy crank and rod bearings at speed.
Why It Happens
The GT's multi-stage dry sump scavenge pump suffers seal degradation and bearing wear under sustained lateral G-forces on track, reducing oil pressure to critical components. This is a critical failure that can destroy crank and rod bearings at speed.
Dealer (parts + labour)
£500-£800
Specialist (parts + labour)
£350-£600
What it involves
Dry sump pressure test, oil analysis, pump inspection
Suitability
First step - confirms whether pump or seals are the issue
1 - 2 daysDealer (parts + labour)
£3,500-£5,000
Specialist (parts + labour)
£2,200-£3,400
What it involves
Drains dry sump reservoir, replaces external scavenge seals, pressure relief valves, verifies oil line integrity
Suitability
Suitable only if pressure loss is intermittent and internal bearing surfaces are verified clean
1 - 2 daysDealer (parts + labour)
£24,000-£30,000
Specialist (parts + labour)
£18,000-£24,000
What it involves
Supply & fit of specialist-rebuilt M159.972 with reinforced dry sump pump, upgraded bearings, revised baffling, AMG-spec calibration
Suitability
Mandatory once bearing knock appears or oil starvation codes trigger. Protects the asset's collector value
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Diagnostics - Dry sump pressure test Minor | £500-£800 | £350-£600 | Dry sump pressure test, oil analysis, pump inspection | First step - confirms whether pump or seals are the issue | 1 - 2 days |
 Intermediate - Pump seal & line refresh Best Value | £3,500-£5,000 | £2,200-£3,400 | Drains dry sump reservoir, replaces external scavenge seals, pressure relief valves, verifies oil line integrity | Suitable only if pressure loss is intermittent and internal bearing surfaces are verified clean | 1 - 2 days |
Full Replacement - Rebuilt M159.972 engine Best Value | £24,000-£30,000 | £18,000-£24,000 | Supply & fit of specialist-rebuilt M159.972 with reinforced dry sump pump, upgraded bearings, revised baffling, AMG-spec calibration | Mandatory once bearing knock appears or oil starvation codes trigger. Protects the asset's collector value | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical 2012-2014 SLS AMG GT is worth approximately £80,000-£120,000 depending on mileage and condition. These performance-focused variants retain strong values for well-maintained examples, making engine replacement a justifiable investment.
Our Recommendation
Our Recommendation
Dry sump pressure loss on a GT is not a repair-and-wait scenario. Low oil pressure at speed will rapidly destroy crank and rod bearings. If warning lights illuminate or oil pressure drops below 1.5 bar at operating temperature, a complete rebuilt engine with reinforced lubrication architecture is the only viable solution to preserve the vehicle's investment grade.
Don't Let Dry Sump Failure, Exhaust Cracking, or Valve Train Wear Write Off Your Mercedes SLS AMG GT
Whether you're facing M159.972 dry sump pressure loss, exhaust manifold cracking, or valve train fatigue on your GT, EnginesMarket makes it simple to compare quotes from trusted UK AMG-accredited specialists. Every rebuilt engine in our network carries upgraded components addressing the original design weakness - reinforced dry sump pumps, upgraded exhaust manifolds, and hardened valve train components - plus a minimum 12-month unlimited mileage warranty with dyno certification and provenance documentation. Don't pay main dealer premiums. Compare prices from independent AMG specialists who know this hand-built V8 inside out.
Compare rebuilt M159.972 Mercedes SLS AMG GT engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"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 EnginesMarket'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 SLS AMG GT. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mercedes SLS AMG GT Engine ReplacementFrequently Asked Questions
Question 1How much does a Mercedes SLS AMG GT engine replacement cost in the UK-
Short summary: A rebuilt M159.972 engine for the SLS AMG GT costs £18,500-£25,000 supply-only. Fitting adds £1,500-£2,500 depending on complexity - AMG V8 and dry sump work requires specialist knowledge.
- SLS AMG GT (M159.972): rebuilt unit £18,500-£25,000; used engine from £10,000
- M159.972 dry sump pump rebuild: £2,200-£3,400 at specialist
- M159.972 exhaust manifold replacement: £1,800-£3,000 at specialist
Question 2What are the signs of dry sump pressure loss on a Mercedes SLS AMG GT-
Short summary: Low oil pressure warnings at speed, bearing knock, or oil analysis showing elevated bearing metals are the classic warning signs on the M159.972 engine. The GT's dry sump system is critical to engine health.
- Low oil pressure warnings at speed
- Bearing knock or metallic tapping noise
- Oil analysis with elevated copper, lead or tin levels
- If caught early, pump seal refresh costs £2,200-£3,400 at specialist
Question 3What causes exhaust manifold cracking on a Mercedes SLS AMG GT-
Short summary: The GT's high-output calibration and track use subject the exhaust manifold to extreme thermal cycling stress. Over time, this can cause cracking, leading to exhaust leaks, loss of power, and potential engine bay fire risk.
- Exhaust noise or ticking from the engine bay
- Loss of power or reduced performance
- Check engine light with exhaust-related codes
- If caught early, manifold replacement costs £1,800-£3,000 at specialist
Question 4Is the Mercedes SLS AMG GT engine (M159.972) reliable-
Short summary: The M159.972 is a hand-built masterpiece - the most powerful naturally aspirated V8 in the SLS range before the Black Series. However, its track-focused design creates unique challenges. Dry sump pump wear, exhaust manifold cracking, and valve train fatigue are the most critical issues. With regular maintenance and proactive attention, the engine is fundamentally strong.
- Hand-built AMG construction with individual builder plaque
- Dry sump lubrication requires specialist oil pressure calibration
- Exhaust manifold cracking is a known issue on track-used examples
- Regular oil analysis is essential for track-used GT examples
Question 5How long do Mercedes SLS AMG GT engines last-
Short summary: Properly maintained M159.972 engines routinely reach 80,000-100,000 miles before major work, but track-used examples may require dry sump attention from 40,000 miles. Regular oil analysis is essential for track-used GT examples.
- M159.972 (SLS AMG GT): 80,000-100,000 miles with regular servicing
- Dry sump inspection recommended from 40,000 miles on track-used examples
- Oil analysis every 5,000 miles for track-used vehicles
- Service interval is 10,000 miles or 12 months - use Mercedes-spec MB 229.5 oil
Question 6Is it worth replacing the engine in my Mercedes SLS AMG GT-
Short summary: Yes, if the GT is otherwise in good condition with no rust or major transmission faults. A rebuilt M159.972 costs £18,500-£25,000 - far less than replacing a £80,000-£120,000 vehicle. Investment-grade documentation, dyno certification, and unlimited warranty preserve provenance while restoring performance.
- SLS AMG GT values: £80,000-£120,000 depending on condition and mileage
- Rebuilt engine with upgraded components fixes original weak points
- Supply & fit typically £20,000-£27,500 depending on engine code
- New engine includes 12-month unlimited mileage warranty
Why Choose UsCompare Mercedes SLS AMG GTEngine PricesToday
50+ M159.972 V8 engines supplied through our network
12-Month Warranty on every rebuilt GT engine (24-36 month extended available)
Nationwide enclosed delivery
supply & fit available for M159.972
Comparing quotes for your Mercedes SLS AMG GT is completely free, with no obligation and no pressure. Enter your registration above to get tailored quotes from UK AMG-accredited specialists who understand the M159.972 hand-built V8 engine inside out. Whether you need a used engine, a reconditioned unit, or a full rebuilt engine with upgraded dry sump pumps, exhaust manifolds, and valve train components, we'll connect you with the right specialist for your exact GT - with a minimum 12-month warranty on every engine supplied.
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