Audi A4 TDI 1.9 90(b5)
Engine Tuning in Belfast

Audi A4 TDI 1.9 90(b5): remap at a glance

• Fuel: Diesel
• Standard power: 90 bhp, remapped: 121 bhp (+31 bhp, +34%)
• Standard torque: 202 Nm, remapped: 280 Nm (+78 Nm, +39%)
• Service: stage 1 ECU remap, fully dyno tested

Diesel Audi A4: what changes with a remap

Diesel engines respond strongly to remapping because the ECU controls injection quantity, injection timing and turbo boost pressure. Re-calibrating those maps typically brings the biggest improvement in mid-range torque, which is what you feel when overtaking or towing.

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

How the Audi A4 TDI 1.9 90(b5) compares

Ranked by power gain against the other diesel A4 engines (24 in total), the TDI 1.9 90(b5) is 21st, 7 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 31 bhp and 78 Nm sits below that benchmark.

Remapping your Audi A4 in Belfast

Remap Experts has a dedicated Belfast site, so you deal with a local team backed by a national network. We regularly work with drivers in Holywood, Newtownabbey, Millisle, Lisburn and Dunmurry and nearby areas of Northern Ireland.

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 Glasgow, Scotland and Carlisle, those neighbouring Remap Experts sites can help too.