Mercedes Benz CLS 53 AMG 435bhp tuning file
C257 (2018–2020) · Petrol MHEV · ECU: Bosch MG1CP002
Stage 1 remap: +25 bhp & +100 Nm
ECU
Read methods
Available solutions
With a bespoke remap the Mercedes Benz CLS 53 AMG 435bhp gains +25 bhp and +100 Nm, rising from 435 bhp / 520 Nm to 460 bhp / 620 Nm (6% more power). We build each tuning file around the software number of your read on the Bosch MG1CP002, so nothing generic goes back into the car. Add DPF / EGR solutions to the same file if needed.
Who is this remap for?
On a turbo petrol, a remap sharpens throttle response and pulls harder through the mid-range. For the best result we recommend running it on super unleaded (97–99 RON). 435 → 460 bhp equals roughly 324 → 343 kW.
Figures are guide values from our rolling road and comparable vehicles. Results depend on the vehicle's condition, hardware and fuel quality. Remapping in the UK: let your insurer know about the modification. DPF, EGR and AdBlue solutions are supplied for off-road and motorsport use only and are not legal for use on UK roads.
Engine specification
| Fuel type | Petrol MHEV |
| Engine size | 2999 CC |
| Compression ratio | 10.5 : 1 |
| Bore × stroke | 83.0 X 92.4 mm |
| Engine code | M256 |
Other Mercedes Benz CLS C257 (2018–2020) engines
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