BHP+32 hp (12%)
Standard
258 hp
Tuned
290 hp
Torque+70 Nm (11%)
Standard
620 Nm
Tuned
690 Nm
Suitability
Good (6.5/10)Gains Profile
BalancedHeadroom
MediumMercedes-Benz GLS 350d 258hp ECU Remapping
Considering an ECU remap for your Mercedes-Benz GLS 350d 258hp? A Stage 1 remap can take this 2015 - 2018 diesel engine from 258 BHP to 290 BHP and from 620 Nm to 690 Nm of torque (turbocharged). This engine scores 6.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz GLS can achieve.
How this engine compares
- 9thof 9 Mercedes-Benz GLS engines by power gain
- 51%of the 9,842 engines we hold gain data for see a smaller power increase
- 55%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Mercedes-Benz GLS 350d 258hp is a 3.0L turbocharged diesel engine producing 258 BHP and 620 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 290 BHP and 690 Nm — a gain of around 32 BHP (12%) and 70 Nm (11%).
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.
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.
Other GLS 2015 - 2018 Engines
| Engine | BHP | Gain |
|---|