BMW X3 3.0d 204
ECU Tuning in Gwent
BMW X3 3.0d 204 in Gwent. 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
BMW X3 3.0d 204: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+35 bhp · +17%- Standard204 bhp
- Remapped239 bhp
Torque
+75 Nm · +18%- Standard410 Nm
- Remapped485 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
Out of the box the BMW X3 3.0d 204 gives 204 bhp and 410 Nm. Remapped in Gwent, we record 239 bhp and 485 Nm, so 35 bhp and 75 Nm more, or 17% and 18% respectively.
These are indicative figures for a diesel BMW X3 in good health. Your own results depend on the condition of the car.
BMW X3 3.0d 204 remap figures
- Fuel: Diesel
- Standard power: 204 bhp, remapped: 239 bhp (+35 bhp, +17%)
- Standard torque: 410 Nm, remapped: 485 Nm (+75 Nm, +18%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel BMW X3: what changes with a remap
Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.
How the BMW X3 3.0d 204 compares
Ranked by power gain against the other diesel X3 engines (5 in total), the 3.0d 204 is 4th, 1 bhp below the X3 diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 35 bhp and 75 Nm sits at or above that benchmark.
BMW X3 engine tuning in Gwent
Based around Gwent, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Crumlin, Rassau, Manmoel, Ebbw Vale and Brynmawr and nearby areas of Wales.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Cardiff, Bristol and Midwales, those neighbouring Remap Experts sites can help too.

Want these figures on your BMW X3 3.0d 204?
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your BMW X3
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.
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