Mercedes Viano 3.0 CDI 204
ECU Tuning in Midwales

Mercedes Viano 3.0 CDI 204: remap at a glance

• Fuel: Diesel
• Standard power: 204 bhp, remapped: 250 bhp (+46 bhp, +23%)
• Standard torque: 440 Nm, remapped: 510 Nm (+70 Nm, +16%)
• Service: stage 1 ECU remap, fully dyno tested

How ECU tuning works on a diesel Mercedes Viano

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 Viano 3.0 CDI 204 compares

Among the 4 diesel Viano engines we have figures for, the 3.0 CDI 204 ranks 1st for power gain, 9 bhp above the Viano diesel average of 37 bhp.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 46 bhp and 70 Nm sits at or above that benchmark.

Remapping your Mercedes Viano in Midwales

Based around Midwales, our team serves local drivers as part of the nationwide 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.