Audi A4 TDI 2.5 155(b6)
ECU Tuning in Scotland
Audi A4 TDI 2.5 155(b6) in Scotland. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Audi A4 TDI 2.5 155(b6): standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+35 bhp · +23%- Standard155 bhp
- Remapped190 bhp
Torque
+90 Nm · +29%- Standard310 Nm
- Remapped400 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
ECU tuning for the Audi A4 TDI 2.5 155(b6) in Scotland takes it from 155 to 190 bhp and from 310 to 400 Nm in our stage 1 figures: +35 bhp (23%) and +90 Nm (29%).
The figures above are estimates for a standard, well-maintained Audi A4 diesel; they are not a guarantee of any particular result.
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
What a remap does for a diesel Audi A4
Nothing is bolted on in a diesel remap. The ECU's stored maps for injection quantity, rail pressure and turbo boost are rewritten within safe limits, and because diesels make power through torque, that is where the improvement is most obvious.
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.
Remapping your Audi A4 in Scotland
Remap Experts Scotland is part of the UK-wide Remap Experts network. We regularly work with drivers in Penicuilk, Kirkcaldy, Musselburgh, Livingston and Gorebridge and nearby areas of Scotland.
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 Edinburgh, Glasgow and Fife, those neighbouring Remap Experts sites can help too.

Want these figures on your Audi A4 TDI 2.5 155(b6)?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Audi A4
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other A4 engines
- Audi A4 1.8 TFSI 120(b8) upto sept 2008petrol
- Audi A4 1.8 TFSI 160(b8)petrol
- Audi A4 1.8T 150(b5)petrol
- Audi A4 1.8T 150(b6)petrol
- Audi A4 1.8T 163(b6)petrol
- Audi A4 1.8T 163(b7)petrol
- Audi A4 1.8T 180 Us(b6)petrol
- Audi A4 1.8T 180(b5)petrol
- Audi A4 1.8T 190(b6)petrol
- Audi A4 2.0 130(b5)petrol
- Audi A4 2.0 130(b7)petrol
- Audi A4 2.0 FSI 150(b6)petrol
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide