Audi A4 TDI 2.5 155(b6)
ECU Tuning in Somerset

Audi A4 TDI 2.5 155(b6) power and torque after remapping

• Fuel: Diesel
• Standard power: 155 bhp, remapped: 190 bhp (+35 bhp, +23%)
• Standard torque: 310 Nm, remapped: 400 Nm (+90 Nm, +29%)
• Service: stage 1 ECU remap, fully dyno tested

How ECU tuning works on a diesel Audi A4

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, TDI is the Volkswagen Group name for its turbocharged direct-injection diesel engines.

How the Audi A4 TDI 2.5 155(b6) compares

Among the 24 diesel A4 engines we have figures for, the TDI 2.5 155(b6) ranks 16th for power gain, 3 bhp below the A4 diesel average of 38 bhp.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 35 bhp and 90 Nm sits at or above that benchmark.

Book performance tuning for your Audi A4 in Somerset

Remap Experts Somerset is part of the UK-wide Remap Experts network. We regularly work with drivers in Norton Radstock, Weston-Super-Mare, Wells, Taunton and Minehead and nearby areas of the South West.

All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.

If you are closer to Bristol, Bath and Devon, those neighbouring Remap Experts sites can help too.