Mercedes S-class S 420 CDI 320(+05)
Remapping London

Mercedes S-class S 420 CDI 320(+05) remap figures

• Fuel: Diesel
• Standard power: 320 bhp, remapped: 370 bhp (+50 bhp, +16%)
• Standard torque: 730 Nm, remapped: 835 Nm (+105 Nm, +14%)
• Service: stage 1 ECU remap, fully dyno tested

How remapping works on a diesel Mercedes S-class

Diesel engines respond strongly to remapping because the ECU controls injection quantity, injection timing and turbo boost pressure. Re-calibrating those maps typically brings the biggest improvement in mid-range torque, which is what you feel when overtaking or towing.

For reference, CDI is the Mercedes-Benz name for its common-rail diesel engines.

Mercedes S-class S 420 CDI 320(+05) against other S-class engines

Ranked by power gain against the other diesel S-class engines (7 in total), the S 420 CDI 320(+05) is 1st, 13 bhp above the S-class diesel average of 37 bhp.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 50 bhp and 105 Nm sits at or above that benchmark.

Mercedes S-class ECU remapping in London

This is the London site of the Remap Experts network, serving local drivers. We regularly work with drivers in Hounslow, Watford, Sutton, Romford and Enfield and nearby areas of London.

You get a fully dyno tested remap, a 30 day money back guarantee and a lifetime software warranty with every job. Get your quote today on 0800 779 7864.

If you are closer to Croydon, Kensingtonandchelsea and Essex, those neighbouring Remap Experts sites can help too.