Audi A8 (D4) 2010> 4.2 TDI 345bhp remap figures
Stock, this 2010> Audi A8 diesel (4.1L) produces 345bhp and 800Nm. Our expected figures for a Stage 1 remap are 405bhp and 927Nm, an expected gain of up to 60bhp and 127Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 345 bhp | 405 bhp | +60 bhp |
| Torque | 800 Nm | 927 Nm | +127 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 345 bhp | 800 Nm | |
| Stage 1Maximum software-only performance | 405 bhp | 927 Nm | +60 bhp +127 Nm |
| Stage 1 EcoPerformance with economy in mind | 390 bhp | 917 Nm | +45 bhp +117 Nm |
| Eco mapEconomy first | 385 bhp | 910 Nm | +40 bhp +110 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your A8
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
The ECU recorded for this variant is a Bosch EDC17CP44. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Audi A8 4.2 TDI 345bhp?
We expect 405bhp and 927Nm against 345bhp and 800Nm as standard: up to +60bhp and +127Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Audi A8 4.2 TDI 345bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 390bhp and 917Nm expected. The Eco map is economy first: 385bhp and 910Nm. Both still sit above the standard 345bhp and 800Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Audi A8 figures
Other diesel variants
All diesel A8 (D4) variants · A8 (D4) 2010-2017 overview · All Audi figures