Audi A6 TDI 2.5 115(c4)
Engine Tuning Bristol

Audi A6 TDI 2.5 115(c4): remap at a glance

• Fuel: Diesel
• Standard power: 140 bhp, remapped: 180 bhp (+40 bhp, +29%)
• Standard torque: 290 Nm, remapped: 355 Nm (+65 Nm, +22%)
• Service: stage 1 ECU remap, fully dyno tested

How engine tuning works on a diesel Audi A6

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.

Audi A6 TDI 2.5 115(c4) against other A6 engines

Ranked by power gain against the other diesel A6 engines (25 in total), the TDI 2.5 115(c4) is 10th, exactly the A6 diesel average.

Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 40 bhp and 65 Nm sits at or above that benchmark.

Audi A6 ECU tuning in Bristol

Whether you live in Bristol or nearby, the Bristol Remap Experts site is your local route to a quote. We regularly work with drivers in Keynsham, Portishead, Nailsea, Kingswood and Clifton and nearby areas of the South West.

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 Bath, Somerset and Gwent, those neighbouring Remap Experts sites can help too.