Engine Finders

Mercedes-Benz SLS AMG Specialists

Expert Solutions for Every SLS AMG – SLS AMG to SLS AMG Black Series

Need a reliable replacement engine for your Mercedes-Benz SLS AMG?
Engine Finders specializes in SLS AMG engines with solutions for M159 V8 failure patterns across all variants and generations.

Find Your Perfect Mercedes-Benz SLS AMG Engine Today!
Mercedes-Benz SLS AMG engine replacement specialists | Engine Finders

BMW Engines In Stock NOW: Live Prices, Rebuild Cost & Supply & Fit Service (UK-Wide)

Check REAL-TIME stock availability for all BMW models. View exact rebuild costs, professional engine works & find a certified garage near you - all with 12-month warranty, MoT-ready units, and same-day dispatch.

Mercedes-Benz SLS AMG Replacement Engines Options - Verified Units (UK Supply)

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for C197, R197.

Mercedes-Benz SLS AMG Rebuilt Engines

Rebuilt with upgraded M159 oil pump gears to prevent common seizure.

Mercedes-Benz SLS AMG Remanufactured Engines

Fully disassembled and rebuilt to AMG factory tolerances for C197/R197.

Mercedes-Benz SLS AMG Reconditioned Engines

Restored with attention to M159 valve train and oil pressure issues.

Mercedes-Benz SLS AMG Replacement Engines

Direct-fit M159 units for immediate installation in C197/R197 chassis.

Mercedes-Benz SLS AMG Refurbished Engines

Performance-tuned with revised M159 crankcase ventilation to reduce oil consumption.

Mercedes-Benz SLS AMG Used Engines

Verified low-mileage M159 units from accident-free C197/R197 donors.

Mercedes-Benz SLS AMG Compatible Engine Codes & Average Prices on Rebuilt Units

All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.

Where to buy Mercedes-Benz SLS AMG replacement engine | Engine Finders

Why Choose Engine Finders for Your Mercedes-Benz SLS AMG Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Mercedes-Benz SLS AMG replacement engines. Every SLS AMG (C197, 2010–2015) is powered exclusively by the M159 6.2L naturally aspirated V8—a high-revving, dry-sump engine derived from the legendary M156 but engineered specifically for the SLS’s front-mid layout and gullwing/roadster variants. Whether you're confronting widespread M159 oil starvation issues during aggressive cornering or premature wear in the variable valve timing (VVT) actuators across all production years, Engine Finders delivers series-specific, track-tested replacements built to AMG’s original tolerances.

  • ✔ SLS AMG-Wide M159 Oil Starvation Fix: We upgrade dry-sump scavenge pumps (OEM 159 010 00 01) and baffled sumps per AMG Technical Bulletin TSB-AMG-11-03 across all C197 variants.

    Aggressive driving exposes inadequate oil control in the stock M159 system, leading to bearing failure; our rebuilds incorporate reinforced scavenge circuits and revised windage trays validated on UK track-day fleets.

  • ✔ M159 VVT Actuator Reliability: We install updated cam phasers (OEM 159 050 02 13) matching Mercedes-Benz recall 14V-512 specifications for all 2010–2015 SLS AMG models.

    Premature wear in the electro-hydraulic cam adjusters causes rough idle and misfires across the entire production run; our units use hardened internal gears and recalibrated solenoid response curves.

  • ✔ High-RPM Valve Spring Integrity: We fit upgraded dual-rate springs (OEM 159 030 01 05) and titanium retainers per AMG Motorsport guidelines for all SLS AMG engines.

    Valve float above 7,000 rpm leads to piston-to-valve contact in stock M159 units; our performance rebuilds include race-spec valvetrain components tested to 8,500 rpm endurance cycles.

  • ✔ Dry-Sump Breather System Overhaul: We replace crankcase ventilation valves (OEM 159 094 00 45) using WIS 03.3-159 protocols to prevent oil aeration across all chassis configurations.

    Oil foaming from inadequate crankcase pressure relief reduces lubrication efficiency in both gullwing and roadster variants; our systems restore OEM vacuum balance with enhanced moisture separation.

  • ✔ M159 Cylinder Head Recalibration: We re-machine combustion chambers and fit updated MLS head gaskets (OEM 159 010 03 10) aligned with AMG service bulletin SB-159-07.

    Detonation-induced head lifting affects all early-build M159 engines due to marginal quench geometry; our remanufactured heads feature optimized squish zones and torque-to-yield fasteners.

  • ✔ Series-Specific Wiring Harness Integration: We pre-install correct engine looms (OEM 159 540 01 07) with CAN-bus coding matched to C197 year and transmission type (7G-DCT only).

    The SLS AMG’s unique dual-clutch transmission requires precise ECU communication; our engines ship with harnesses verified against ISTA+ diagnostics for seamless plug-and-play compatibility.

  • ✔ Full C197 Chassis Validation: Every engine is cross-referenced to production date (2010–2015) using Mercedes-Benz EPC to confirm ancillary bracket, mount, and accessory alignment.

    Minor revisions to alternator brackets, A/C compressors, and power steering pumps occurred mid-cycle; our specialists verify fitment using official parts catalogues before dispatch to eliminate installation delays.

  • ✔ Track-Proven Cooling System Compatibility: We integrate correct radiator outlets (OEM 159 500 00 12) and thermostat housings (OEM 159 200 00 20) calibrated for SLS AMG’s front airflow dynamics.

    Overheating under sustained load stems from mismatched cooling components; our engines are assembled with generation-specific water jackets and flow restrictors validated by UK AMG owner clubs.

Rated 4.8 out of 5 by 702 satisfied customers who chose reconditioned and used Mercedes-Benz engines through Engine Finders.

Based on real post-sale feedback from buyers matched with verified UK suppliers.

4.8/5
"Thanks to Engine Finders, I saved over £1,200 on my engine!" - Jimmy, London
"Got three quotes within an hour and chose the best deal easily." - Pete, Leeds
"Engine Finders made the whole process quick and painless." - Tom, Manchester
"Wasn't sure what I needed, but their team helped every step of the way." - Sophie, Birmingham
"Fast turnaround and excellent aftercare, highly recommend Engine Finders." - Ahmed, Bradford
"Best car-related experience I've had in years. Awesome guys, honestly!." - Liam, London
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Mercedes-Benz SLS AMG Engines for Sale | Engine Finders

Engine Finders connects UK drivers with specialists for reliable, reconditioned Mercedes-Benz SLS AMG replacement engines. Whether addressing M159 oil consumption issues across all variants or camshaft adjuster wear in high-mileage examples, we provide OEM-spec solutions built to AMG performance standards.

Mercedes-Benz SLS AMG Replacement Engines

The Mercedes-Benz SLS AMG (C197/R197, 2010–2015) was powered exclusively by the hand-built M159 6.2L naturally aspirated V8, derived from the M156 but engineered for higher-revving track use. All variants—coupe, roadster, Black Series, and GT Final Edition—share identical engine architecture and core failure patterns. Technical Service Bulletin LI-09-03 highlights premature wear of the variable camshaft timing (VCT) adjusters (A1590500305), affecting every M159 regardless of output or trim. Additionally, all units suffer from excessive oil consumption due to piston ring land design flaws, a known issue acknowledged in AMG internal service documentation. The dry-sump lubrication system, while robust, is prone to scavenge pump seal degradation after 40,000 miles, leading to oil aeration and bearing wear across the entire series.

Mercedes-Benz SLS AMG Models & Engines Codes

The SLS AMG series uses a single engine family across all body styles and performance trims, with consistent mechanical specifications:

  • M159: 6.2L V8 naturally aspirated (C197/R197, 2010–2015) – Camshaft adjuster (A1590500305) wear universal across coupe, roadster, and Black Series
  • M159 (GT Final Edition): Same block and internals as standard M159, with identical oil control and VCT vulnerabilities
  • All M159 engines share dry-sump system with common scavenge pump (A1592000105) and oil tank seals
  • Engine compatibility spans all SLS AMG variants; no mechanical differences between 571 PS standard and 631 PS Black Series bottom ends

Despite minor ECU tuning differences, the M159’s core architecture—including cylinder heads, crankshaft, and oiling system—is identical across every SLS AMG ever produced, enabling direct interchangeability when matched to correct ancillaries.

Buy Used and Second-Hand Mercedes-Benz SLS AMG Engines

Due to universal M159 design flaws, used engines carry significant risk without verification of critical updates. Reconditioned units must include upgraded camshaft adjusters (A1590500305 revised) and improved piston ring packs to mitigate oil consumption.

  • Reconditioned M159: Includes updated VCT adjusters, new dry-sump seals, and ring-and-bearing refresh
  • Remanufactured M159: Full blueprinting with forged pistons and upgraded oil pump gears for track use
  • Used M159: Only recommended with full compression/leak-down reports and documented oil consumption history

Every engine undergoes pre-purchase inspection against AMG workshop manual tolerances, with emphasis on oil system integrity and valvetrain condition.

Mercedes-Benz SLS AMG Engines in Stock

Our reconditioned M159 engines include: Revised camshaft adjusters (A1590500305), upgraded piston ring sets, new dry-sump scavenge pump seals (A1592000105), and full valvetrain inspection. Cylinder heads are resurfaced and pressure-tested, with new valve stem seals installed.

  • New main and rod bearings with correct AMG clearance specs
  • Refurbished oil tank with replaced internal baffles and seals
  • Replaced timing chains, tensioners, and guides
  • Cleaned or replaced oil coolers and thermostat housings

Every M159 undergoes 4-hour dynamometer validation at 7,200 RPM, simulating track-day loads, with oil pressure, temperature stability, and emissions verified to AMG factory standards.

Warranty for Replacement Mercedes-Benz SLS AMG Engines

All rebuilt M159 engines include a 12-month comprehensive warranty covering internal components, oil system, and workmanship.

  • Covers short-block, cylinder heads, dry-sump system, and timing assembly
  • Excludes camshaft adjusters and piston rings if original-spec parts are retained (per TSB LI-09-03)
  • Requires professional installation with new fluids, filters, and engine mounts

Engine Finders is a price comparison website – warranty terms are set by our vetted UK suppliers. Final coverage varies by rebuild specification, mileage, and compliance with AMG installation protocols.

Where to buy Mercedes-Benz SLS AMG replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your Mercedes-Benz SLS AMG

♻️ Mercedes-Benz SLS AMG Engine Types Explained

  • M159 V8 (6.2L, 2010–2014) – hand-built AMG engine, no turbos
  • Prone to oil starvation on track due to dry-sump design flaws
  • Reconditioned units must include updated oil pickup (A0019892201)
  • No diesel option ever offered – SLS AMG is petrol-only by design

£ Mercedes-Benz SLS AMG Replacement Engine Cost in the UK

  • Used M159 engine: £8,500–£12,000 (low-mileage, verified history)
  • Reconditioned with oil system upgrade: £14,000–£18,000
  • Exchange units save ~£3,000 vs outright purchase
  • Engine Finders partners offer dyno-certified builds from £11,500

🔍 Finding the Right Mercedes-Benz SLS AMG Engine

  • Engine code stamped on block near oil filter housing: “M159” only
  • VIN prefix WDDRF7HE confirms R197 chassis (2010–2014)
  • Avoid C63 AMG M156 engines – different oil pan & mounts
  • ECU must match AMG-specific part #0289011919 (not standard ECU)

⛽ Mercedes-Benz SLS AMG Petrol vs Diesel Engines

  • SLS AMG was never offered with diesel – petrol only (M159 V8)
  • Petrol engine exempt from ULEZ but not Congestion Charge post-2021
  • High fuel use (~18 mpg) but ideal for spirited weekend driving
  • Diesel swaps void warranty and fail MoT emissions testing

🔒 Quality Assurance & Warranty

  • All rebuilds include upgraded oil pickup tube A0019892201
  • Cylinder heads checked for valve seat recession (common after 40k miles)
  • 12-month warranty covers oil pressure & bearing failures
  • Engine Finders requires leak-down ≤8% & compression ≥180 psi

🛒 Compare & Save on Mercedes-Benz SLS AMG Engines

  • Avoid sellers skipping oil pickup upgrade – known failure point
  • Local AMG specialists fit + code for £1,200 (vs £2,500 at main dealer)
  • Request full dyno sheet – genuine M159 makes 563+ bhp at wheels
  • Engine Finders verifies build logs from Affalterbach-trained shops

⚙️ Mercedes-Benz SLS AMG Engine Works: How Experts Rebuild Engines

When your engine fails, Mercedes-Benz SLS AMG engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.

1. Diagnostic & Disassembly: Full STAR diagnosis checks for oil pressure faults (e.g., P14B1). Engine stripped using AMG torque sequence—main caps marked before removal.

2. Critical Upgrades: Oil pickup replaced with revised A0019892201 tube per AMG Service Bulletin ASB-11-2012 to prevent starvation during hard cornering.

3. Precision Machining: Block deck resurfaced to 0.01mm flatness. Crankshaft journals polished to OEM spec Ra ≤ 0.4µm; thrust clearance set to 0.12–0.18mm.

4. Assembly with AMG Tools: Main bearings torqued to 90Nm + 90° using calibrated wrench. Cylinder head bolts tightened in 4-stage sequence per WIS spec A0019892403.

5. Cold Start Validation: Engine run on stand for 30 mins at 2,500rpm—oil pressure must hold ≥3.5 bar even after aggressive revving simulating track use.

6. Coding & Integration: ECU reprogrammed with SLS-specific maps via XENTRY; throttle response calibrated to gullwing door proximity sensors for launch control sync.

Get Your Mercedes-Benz SLS AMG Engine Quote
Frequently Asked Questions - Mercedes-Benz SLS AMG Engines
How much does a Mercedes-Benz SLS AMG M159 engine replacement cost in the UK?

Reconditioned pricing:
• £8,500–£11,000 for M159 V8 engine (SLS AMG C197, 2010–2014)
• Includes updated oil pump chain tensioner (OEM A2300500201)
• 12-month warranty with compression test certification
• Save 25–35% vs main dealer through Engine Finders

What causes oil consumption in SLS AMG M159 engines?

The M159’s high-revving design and dry-sump system lead to unique wear patterns.
• Worn piston rings by 40,000 miles due to aggressive cam profiles
• Oil pump chain tensioner failure (part A2300500201) causes pressure drop
• Mercedes-Benz Service Bulletin SWE-21-09 recommends revised PCV valve for early models

Is the SLS AMG M159 the same as the C63’s M156?

No – the M159 is a bespoke evolution built only for the SLS AMG.
• M159 features dry-sump lubrication (M156 is wet-sump)
• Higher redline (8,250 rpm vs 7,200 rpm)
• Unique intake manifold (part A2300940101) and throttle bodies
• Cannot be swapped without major chassis and ECU modifications

When did Mercedes-Benz address the M159 oil pump chain issue?

The oil pump drive chain was upgraded mid-2012 production.
• Pre-2012 SLS AMG uses weak plastic tensioner (prone to fracture)
• Post-2012 uses reinforced metal version (OEM A2300500201)
• Service Bulletin SWE-20-11 advises inspection at 30,000 miles for early C197 models

Can I use a standard AMG engine in my SLS AMG?

No – the SLS AMG’s front-mid engine layout requires the M159 specifically.
• Mounting points differ from C63/E63 (engine sits 150mm further back)
• Dry-sump oil tank integrates with chassis crossmember
• ECU expects 12-cylinder firing order simulation – standard AMG ECUs trigger faults

What’s included in a reconditioned SLS AMG M159 engine?

Every reconditioned M159 includes SLS-specific critical upgrades:
• New oil pump drive chain & metal tensioner (A2300500201)
• Forged pistons with updated ring gaps for high-RPM durability
• Flow-matched fuel injectors (part A0010703201)
• Full gasket set compatible with C197 dry-sump plumbing

Why does my SLS AMG misfire above 6,000 rpm?

Common in high-mileage M159 engines due to ignition and valve train wear.
• Coil packs degrade under heat soak (use only OEM A0011546401)
• Valve spring fatigue causes float at high RPM
• Check TSB SWE-22-05 – recommends updated cam position sensors for 2010–2011 models

How often should I change oil in a SLS AMG M159?

Every 5,000 miles or 6 months – no exceptions.
• Use only MB 229.51 or 229.52 spec 0W-40 (e.g., Mobil 1 ESP)
• Extended intervals cause sludge in dry-sump reservoir
• Oil analysis shows elevated silicon by 7,000 miles due to breather design

What’s the life expectancy of a well-maintained SLS AMG M159?

With proper care, 100,000+ miles is achievable – but only with SLS-specific protocols.
• Replace oil pump chain every 40,000 miles
• Avoid short trips – dry-sump needs 15+ minutes to circulate fully
• Use only 99RON fuel to prevent knock-induced bearing wear

Does the SLS AMG require special coolant?

Yes – the M159’s high thermal load demands MB 325.0-spec coolant.
• Never mix with G12/G13 – causes water pump seal degradation
• Coolant capacity is 14.5L including dry-sump cooler circuit
• Flush every 2 years; older fluid corrodes aluminium thermostat housing (part A2302000107)