Mercedes-Benz GL 400 - 333hp Remap

Name: Mercedes-Benz GL 400 - 333hp ECU Remap
Brand: Mercedes-Benz

Expected gains of +67 BHP and +100 Nm torque

Data under review — The figures shown for this engine variant are currently being verified. They may be updated as we refine our data.

BHP+67 hp (20%)

Standard

333 hp

Tuned

400 hp

Torque+100 Nm (21%)

Standard

480 Nm

Tuned

580 Nm

Suitability

Moderate (5.5/10)

Gains Profile

Balanced

Headroom

High

Mercedes-Benz GL 400 - 333hp ECU Remapping

Considering an ECU remap for your Mercedes-Benz GL 400 - 333hp? A Stage 1 remap can take this X166 - 2012 -> petrol engine from 333 BHP to 400 BHP and from 480 Nm to 580 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz GL can achieve.

How this engine compares

3rdof 14 Mercedes-Benz GL engines by power gain
91%of the 9,842 engines we hold gain data for see a smaller power increase
79%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Mercedes-Benz GL 400 - 333hp is a 3.0L naturally aspirated petrol engine producing 333 BHP and 480 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 400 BHP and 580 Nm — a gain of around 67 BHP (20%) and 100 Nm (21%).

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 high, based on the percentage gain available from the factory output.

Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. High tuned torque: check transmission torque capacity and service history.

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.

Other GL X166 - 2012 -> Engines

Engine	BHP	Gain	Torque	Gain	Score
350 Bluetec 258hp	258 → 290	+32	620 → 690	+70	Good (6.5/10)
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)

Technical Specifications

Fuel Type: Petrol
Aspiration: Naturally Aspirated
Displacement: 3L
Capacity: 2996 CC
Type: Car
Engine Family: Mercedes-benz 3.0L NA Petrol

ECU & Transmission

Likely ECU Low confidence: Petrol ECU (varies by market/year)
Gearbox Low confidence: Transmission varies by trim and market; check manual/automatic type and torque rating. At this torque level, transmission and driveline servicing history becomes especially important.

Get Your Free Quote

Get a personalised remap quote for your Mercedes-Benz GL. We'll connect you with a trusted professional in your area.

Confirm Your Vehicle

MakeMercedes-Benz

ModelGL

GenerationX166 - 2012 ->

Engine400 - 333hp

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.