Mercedes-Benz Viano (W639) 2004> V300 201bhp remap figures
Stock, this 2004> Mercedes-Benz Viano diesel (3.0L) produces 201bhp and 441Nm. Our expected figures for a Stage 1 remap are 275bhp and 538Nm, an expected gain of up to 74bhp and 97Nm.
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 | 201 bhp | 275 bhp | +74 bhp |
| Torque | 441 Nm | 538 Nm | +97 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 201 bhp | 441 Nm | |
| Stage 1Maximum software-only performance | 275 bhp | 538 Nm | +74 bhp +97 Nm |
| Stage 1 EcoPerformance with economy in mind | 257 bhp | 530 Nm | +56 bhp +89 Nm |
| Eco mapEconomy first | 251 bhp | 525 Nm | +50 bhp +84 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 Viano
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.
This car is listed with a Bosch EDC16CP31 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 Mercedes-Benz Viano V300 201bhp?
We expect 275bhp and 538Nm against 201bhp and 441Nm as standard: up to +74bhp and +97Nm. 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 Mercedes-Benz Viano V300 201bhp?
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: 257bhp and 530Nm expected. The Eco map is economy first: 251bhp and 525Nm. Both still sit above the standard 201bhp and 441Nm.
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 Mercedes-Benz Viano figures
Other diesel variants
- V300 220bhp 2004>
- V220 160bhp 2004>
- V220 147bhp 2004>
- V220 134bhp 2004>
- V220 114bhp 2004>
- V220 109bhp 2004>
All diesel Viano (W639) variants · Viano (W639) 2004> overview · All Mercedes-Benz figures