BHP+34 hp (11%)
Standard
306 hp
Tuned
340 hp
Torque+80 Nm (13%)
Standard
600 Nm
Tuned
680 Nm
Suitability
Good (6/10)Gains Profile
BalancedHeadroom
MediumBMW 6 Series 635D 306hp ECU Remapping
Considering an ECU remap for your BMW 6 Series 635D 306hp? A Stage 1 remap can take this E63 - 2004 - 2010 diesel engine from 306 BHP to 340 BHP and from 600 Nm to 680 Nm of torque (turbocharged). This engine scores 6/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 6 Series can achieve.
How this engine compares
- 13thof 19 BMW 6 Series engines by power gain
- 53%of the 9,842 engines we hold gain data for see a smaller power increase
- 64%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The BMW 6 serie 635D 306hp is a 3.0L turbocharged diesel engine producing 306 BHP and 600 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 340 BHP and 680 Nm — a gain of around 34 BHP (11%) and 80 Nm (13%).
This engine has moderate 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 moderate, based on the percentage gain available from the factory output.
From a technical perspective, the ECU is typically a Bosch EDC16 (likely), and the transmission is many variants use zf 5/6-speed automatics (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.. Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
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.