Mercedes Viano 3.0 CDI 204
Engine Tuning Bristol
Mercedes Viano 3.0 CDI 204 in Bristol. 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
Mercedes Viano 3.0 CDI 204: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+46 bhp · +23%- Standard204 bhp
- Remapped250 bhp
Torque
+70 Nm · +16%- Standard440 Nm
- Remapped510 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
The Mercedes Viano 3.0 CDI 204 produces 204 bhp and 440 Nm of torque as standard. After a stage 1 ECU remap in Bristol, our figures show 250 bhp and 510 Nm: a gain of 46 bhp (23%) and 70 Nm (16%).
Treat the numbers as a guide: they are stage 1 estimates for a diesel Mercedes Viano in sound condition, and individual cars differ.
Mercedes Viano 3.0 CDI 204: remap at a glance
- Fuel: Diesel
- Standard power: 204 bhp, remapped: 250 bhp (+46 bhp, +23%)
- Standard torque: 440 Nm, remapped: 510 Nm (+70 Nm, +16%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Mercedes Viano: what changes with a remap
On a diesel the ECU decides how much fuel is injected and how hard the turbo works. A remap adjusts those calibrations within safe limits, so the gains show up mainly as extra torque low in the rev range and smoother, more responsive pull.
For reference, CDI is the Mercedes-Benz name for its common-rail diesel engines.
Mercedes Viano 3.0 CDI 204 against other Viano engines
Among the 4 diesel Viano engines we have figures for, the 3.0 CDI 204 ranks 1st for power gain, 9 bhp above the Viano diesel average of 37 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 46 bhp and 70 Nm sits at or above that benchmark.
Remapping your Mercedes Viano in Bristol
Whether you live in Bristol or nearby, the Bristol Remap Experts site is your local route to a quote. We regularly work with drivers in Keynsham, Portishead, Nailsea, Kingswood and Clifton and nearby areas of the South West.
Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.
If you are closer to Bath, Somerset and Gwent, those neighbouring Remap Experts sites can help too.

Want these figures on your Mercedes Viano 3.0 CDI 204?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Mercedes Viano
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 Viano engines
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