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

Mercedes S-class S 420 CDI 320(+05) power and torque after remapping

• 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

Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.

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

Among the 7 diesel S-class engines we have figures for, the S 420 CDI 320(+05) ranks 1st for power gain, 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.

Remapping your Mercedes S-class in Bradford

Whether you live in Bradford or nearby, the Bradford Remap Experts site is your local route to a quote. We regularly work with drivers in Keighley, Thornton, Skipton, Leeds and Harrogate and nearby areas of Yorkshire & Humber.

Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.

If you are closer to Leeds, Blackburn and Manchester, those neighbouring Remap Experts sites can help too.