M2563.0L Petrol
The M256 is Mercedes-Benz's first inline-6 petrol since the M104, returning to the inline-6 format after two decades of V6s thanks to the modular FAME architecture. Produced from 2017 onwards, it pairs a single twin-scroll turbocharger with an electric auxiliary compressor (eZV) and a 48V belt-driven integrated starter-generator (ISG) for instant low-end response. Shares bore spacing and many components with the M254 4-cylinder.
9
Fits chassis
2017–null
Years built
435 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.
M256 at a glance
| Displacement | 3.0L |
| Fuel type | Petrol |
| Power variants | 367 hp, 381 hp, 390 hp, 429 hp, 435 hp |
| Years produced | 2017–null |
| Replaces | M276 |
| Replaced by | — |
M256 fits these 9 Mercedes chassis
Each card links to that chassis hub — full parts catalogue plus fitment notes.
- W2132018-2023E-ClassE450/E53 AMGView parts
- W2142023-2025E-ClassE450
- W2222017-2020S-ClassS450/S500View parts
- W2232020-2025S-ClassS450/S500
- W1672019-2025GLE-ClassGLE450/GLE53 AMGView parts
- C1672020-2025GLE CoupeGLE450/GLE53 AMG
- X1672019-2025GLS-ClassGLS450/GLS500View parts
- C2572018-2023CLS-ClassCLS450/CLS53 AMG
- X2902018-2023AMG GT 4-Door CoupeGT43/GT53
Common M256 problems
We disclose every known fault before sale. Transparency is cheaper than a bad return.
- 48V belt-driven integrated starter-generator (ISG) failure causing no-start condition
- Electric auxiliary compressor (eZV) wear under sustained boost
- Carbon buildup on intake valves due to direct injection
- Turbocharger oil seal leaks at high mileage
- Coolant pump electric motor failures
- Software-related EQ Boost dropouts and limp mode events
Featured parts for the M256
No live M256 listings right now
We strip 10–15 cars a month. Send your VIN and we'll WhatsApp you the moment one comes in.
M256 rebuilds — what to budget
Bench-tested used long blocks start around R 85 000 delivered, full forensic rebuilds with new wear items run up to R 140 000. 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 M256
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
M256 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