M1575.5L Petrol
The M157 is the AMG biturbo 5.5L V8 produced from 2010 to 2018, replacing the naturally aspirated M156 in 63 AMG models. It addresses many of the M156's reliability issues but introduces its own challenges with timing chains and bore scoring on early units.
9
Fits chassis
2010–2018
Years built
577 hp
Power
Used to fully refurbished — quoted per unit
3-month parts warranty
Cover on every used part we dispatch.
Nationwide courier
Courier Guy & Aramex — door to door.
Fitment guaranteed
Send your VIN — we confirm before you pay.
Bench-tested
Inspected and tested before dispatch.
M157 at a glance
| Displacement | 5.5L |
| Fuel type | Petrol |
| Power variants | 518 hp, 536 hp, 550 hp, 557 hp, 577 hp |
| Years produced | 2010–2018 |
| Replaces | M156 |
| Replaced by | M177 |
M157 fits these 9 Mercedes chassis
Each card links to that chassis hub — full parts catalogue plus fitment notes.
- W2122011-2016E-ClassE63 AMGView parts
- W2212010-2013S-ClassS63 AMGView parts
- W2222013-2017S-ClassS63 AMGView parts
- C2162010-2014CL-ClassCL63 AMG
- C2182011-2017CLS-ClassCLS63 AMG
- R2312012-2018SL-ClassSL63 AMG
- W1662011-2018ML/GLE-ClassML63/GLE63 AMGView parts
- X1662012-2019GL/GLS-ClassGL63/GLS63 AMGView parts
- W4632012-2018G-ClassG63 AMG
Common M157 problems
We disclose every known fault before sale. Transparency is cheaper than a bad return.
- Timing chain stretch and tensioner failure on early units, particularly catastrophic given interference design
- Cylinder bore scoring on cylinders 1 and 5 closest to the turbochargers
- Oil leaks from upper timing covers, oil filter housing, and camshaft plugs
- Camshaft position sensor failures
- Spark plug fouling on tuned engines, requiring shorter service intervals
M157 rebuilds — what to budget
Bench-tested used long blocks start around R 130 000 delivered, full forensic rebuilds with new wear items run up to R 220 000. Final price depends on mileage, ancillaries (turbo, injectors, flywheel) and warranty tier — quoted per unit, no list-price surprises.
Send us your VIN — we'll match the right unit
We confirm engine number, ancillaries and warranty tier in writing before you pay.
Tell us about your Mercedes — we'll source the M157
Three short steps. We reply within 2 hours during business hours with engine number, mileage, condition and a delivered price.
- Engine number confirmed against your VIN
- Bench-tested before dispatch
- 3-month warranty + nationwide courier
M157 engine — common questions
Door-to-door courier from R 199
All major SA cities · 1–3 working days · Insured shipping on every order · Couriered from Centurion