For sale is a Mercedes-AMG M157 5.5-liter BiTurbo V8 engine, originally fitted in the Mercedes-AMG S63. This engine represents AMG’s transition to turbocharged performance, delivering massive torque and refined power for luxury performance vehicles.
The engine was removed from a donor vehicle and inspected prior to listing. It has approximately 85,000–100,000 km and remains in strong mechanical condition with normal wear consistent with mileage.
Performance & Reliability
The M157 AMG engine features:
• 5.5L twin-turbocharged V8 configuration
• Direct fuel injection system
• DOHC 32-valve cylinder heads
• Aluminum block and heads
• AMG performance engineering
Factory performance varies depending on model and package:
• Standard: ~518 hp / 516 lb-ft
• AMG Performance Package: up to 550 hp / 590 lb-ft
This engine is known for delivering massive low-end torque, smooth power delivery, and strong high-speed performance while maintaining AMG reliability.
Fitment
Fits in:
• Mercedes-AMG S63 (W221 / early W222)
• Mercedes-AMG CLS63 (W218)
• Mercedes-AMG E63 (W212)
• Mercedes-AMG ML63 / GL63
This engine is a direct OEM replacement for vehicles equipped with the M157 V8 platform.
Kit Includes
• Complete M157 5.5L V8 engine assembly
• Twin turbochargers
• Intake manifold
• Fuel system components
• Engine accessories (depending on availability)
Installation
Professional installation is recommended. During installation it is advisable to:
• Replace engine oil and filters
• Inspect turbo oil lines and cooling system
• Check ignition coils and spark plugs
• Perform ECU diagnostics and adaptation
Ethan Morris (verified owner) –
The engine quality is top notch and the performance is exactly what I needed for my car.
Michael Thompson (verified owner) –
Very reliable engine. It runs smoothly and provides great acceleration when needed.
Jason Green (verified owner) –
My vehicle now runs much more efficiently with this engine.
Levi Torres (verified owner) –
The performance improvement after installing this engine is remarkable.
Zachary Campbell (verified owner) –
Very dependable engine that performs exactly as expected.
Caleb Morgan (verified owner) –
This engine completely revived my car. The power delivery is smooth and the overall performance is fantastic.
Owen Cooper (verified owner) –
I noticed a huge improvement in acceleration after installing this engine.
Owen Cooper (verified owner) –
Great engine upgrade. The vehicle now accelerates faster and runs more efficiently.
Caleb Morgan (verified owner) –
Very smooth and reliable engine. The car feels stronger and more responsive.
Zachary Campbell (verified owner) –
Great engine with solid build quality. Installation was straightforward and it performs flawlessly on the road.