Mercedes-Benz CLS 350d (3.0D) 286hp Remap

Name: Mercedes-Benz CLS 350d (3.0D) 286hp ECU Remap
Brand: Mercedes-Benz

Expected gains of +94 BHP and +200 Nm torque

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BHP+94 hp (33%)

Standard

286 hp

Tuned

380 hp

Torque+200 Nm (33%)

Standard

600 Nm

Tuned

800 Nm

Suitability

Excellent (8/10)

Gains Profile

Balanced

Headroom

High

Mercedes-Benz CLS 350d (3.0D) 286hp ECU Remapping

Considering an ECU remap for your Mercedes-Benz CLS 350d (3.0D) 286hp? A Stage 1 remap can take this C257 - 2018 - 2020 diesel engine from 286 BHP to 380 BHP and from 600 Nm to 800 Nm of torque (turbocharged). This engine scores 8/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz CLS can achieve.

How this engine compares

5thof 36 Mercedes-Benz CLS engines by power gain
98%of the 9,842 engines we hold gain data for see a smaller power increase
95%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Mercedes-Benz CLS 350d (3.0D) 286hp is a 2.9L turbocharged diesel engine producing 286 BHP and 600 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 380 BHP and 800 Nm — a gain of around 94 BHP (33%) and 200 Nm (33%).

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.

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 CLS C257 - 2018 - 2020 Engines

Engine	BHP	Gain	Torque	Gain	Score
220d (2.0D) 194hp	194 → 220	+26	400 → 460	+60	Good (6.5/10)
300d (2.0D) 245hp	245 → 270	+25	500 → 560	+60	Good (6.5/10)
350 (2.0T) 299hp	299 → 350	+51	400 → 470	+70	Good (7/10)
400d (3.0D) 340hp	340 → 380	+40	700 → 820	+120	Good (6.5/10)
450 (3.0T) 367hp	367 → 420	+53	500 → 600	+100	Good (7/10)
450 (3.0T) 389hp	389 → 420	+31	500 → 600	+100	Good (6/10)
53 AMG 435hp	435 → 460	+25	520 → 620	+100	Moderate (4.5/10)

Technical Specifications

Fuel Type: Diesel
Aspiration: Turbocharged
Displacement: 2.9L
Capacity: 2925 CC
Type: Car
Engine Family: Mercedes-benz 2.9L Turbo Diesel

ECU & Transmission

Likely ECU Low confidence: Bosch EDC17-era diesel ECU (varies)
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.

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Confirm Your Vehicle

MakeMercedes-Benz

ModelCLS

GenerationC257 - 2018 - 2020

Engine350d (3.0D) 286hp

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.