Expected gains of +32 BHP and +70 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Mercedes-Benz GL 350 Bluetec 258hp? A Stage 1 remap can take this X166 - 2012 -> 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 GL can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercedes-Benz GL 350 Bluetec 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.
| Engine | BHP | Gain |
|---|
| Torque |
|---|
| Gain |
|---|
| Score |
|---|
| 400 - 333hp | 333 → 400 | +67 | 480 → 580 | +100 | Moderate (5.5/10) |
| 450 367hp | 367 → 510 | +143 | 500 → 820 | +320 | Good (6.5/10) |
| 500 - 435hp | 435 → 510 | +75 | 700 → 820 | +120 | Moderate (5/10) |
| GL 63 AMG - 558hp | 558 → 620 | +62 | 760 → 900 | +140 | Moderate (4.5/10) |
Get a personalised remap quote for your Mercedes-Benz GL. We'll connect you with a trusted professional in your area.
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 before proceeding.