Considering an ECU remap for your Audi A6 2.5 TDI 163hp? A Stage 1 remap can take this C5 - 1997 - 2004 diesel engine from 163 BHP to 190 BHP and from 350 Nm to 390 Nm of torque (turbocharged). This engine scores 6.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Audi A6 can achieve.
The Audi A6 2.5 TDI 163hp is a 2.5L turbocharged diesel engine producing 163 BHP and 350 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 190 BHP and 390 Nm — a gain of around 27 BHP (17%) and 40 Nm (11%).
This engine has moderate remap suitability, with gains weighted towards peak power — the improvement is most noticeable at higher RPM. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
From a technical perspective, the ECU is typically a Bosch EDC15 (likely), and the transmission is manual and dsg/s tronic automatics are common depending on model/engine..
Considerations: Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 1.9 TDI 110hp | 110 → 140 | +30 | 235 → 310 |
| +75 |
| Good (7.5/10) |
| 1.9 TDI 115hp | 115 → 145 | +30 | 310 → 360 | +50 | Good (7.5/10) |
| 1.9 TDI 130hp | 130 → 170 | +40 | 285 → 390 | +105 | Excellent (8/10) |
| 2.5 TDI 150hp | 150 → 190 | +40 | 310 → 390 | +80 | Good (7.5/10) |
| 1.8 T 150hp | 150 → 200 | +50 | 210 → 320 | +110 | Excellent (8/10) |
| 2.4i V6 170hp | 170 → 190 | +20 | 230 → 250 | +20 | Moderate (4.5/10) |
| 2.5 TDI 180hp | 180 → 210 | +30 | 370 → 420 | +50 | Good (6.5/10) |
| 2.8i 193hp | 193 → 210 | +17 | 280 → 300 | +20 | Moderate (4/10) |
| 3.0 V6 220hp | 220 → 240 | +20 | 300 → 325 | +25 | Moderate (4/10) |
| 2.7T 230hp | 230 → 315 | +85 | 310 → 480 | +170 | Excellent (8/10) |
| 2.7T 250hp | 250 → 315 | +65 | 350 → 480 | +130 | Excellent (8/10) |
Get a personalised remap quote for your Audi A6. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
