Mercedes G 400 CDI 250
Engine Tuning in Midwales

Mercedes G 400 CDI 250 remap figures

• Fuel: Diesel
• Standard power: 250 bhp, remapped: 290 bhp (+40 bhp, +16%)
• Standard torque: 560 Nm, remapped: 635 Nm (+75 Nm, +13%)
• Service: stage 1 ECU remap, fully dyno tested

How engine tuning works on a diesel Mercedes G-class

The gains from remapping a diesel come from the engine management software rather than new parts: injection, boost and torque limits are re-mapped, which is why torque improves most and why the car often feels easier to drive at lower revs.

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

How the Mercedes G 400 CDI 250 compares

Ranked by power gain against the other diesel G-class engines (4 in total), the G 400 CDI 250 is 1st, 4 bhp above the G-class diesel average of 36 bhp.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 40 bhp and 75 Nm sits at or above that benchmark.

Remapping your Mercedes G-class in Midwales

Remap Experts Midwales is part of the UK-wide Remap Experts network. We regularly work with drivers in Llanidloes, Welshpool, Newtown, Machynlleth and Llandrindod Wells and nearby areas of Wales.

Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.

If you are closer to Gwent, Cardiff and Chester, those neighbouring Remap Experts sites can help too.