BHP+74 hp (23%)
Standard
326 hp
Tuned
400 hp
Torque+120 Nm (18%)
Standard
680 Nm
Tuned
800 Nm
Suitability
Good (7.5/10)Gains Profile
BalancedHeadroom
HighBMW X3 xDrive M40d 326hp ECU Remapping
Considering an ECU remap for your BMW X3 xDrive M40d 326hp? A Stage 1 remap can take this G01/08 - 2017 - 2020 diesel engine from 326 BHP to 400 BHP and from 680 Nm to 800 Nm of torque (turbocharged). This engine scores 7.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW X3 can achieve.
How this engine compares
- 8thof 41 BMW X3 engines by power gain
- 93%of the 9,842 engines we hold gain data for see a smaller power increase
- 87%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW X3 xDrive M40d 326hp is a 3.0L turbocharged diesel engine producing 326 BHP and 680 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 400 BHP and 800 Nm — a gain of around 74 BHP (23%) and 120 Nm (18%).
This engine scores highly for remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as high, based on the percentage gain available from the factory output.
From a technical perspective, the ECU is typically a Bosch EDC17 (likely), and the transmission is many variants use zf 8-speed automatic (where fitted); manuals also exist. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: High tuned torque: check transmission torque capacity and service history.
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.
Considerations
!High tuned torque: check transmission torque capacity and service history.