Mercedes-Benz Trucks Atego 1226 256hp Remap

Name: Mercedes-Benz Trucks Atego 1226 256hp ECU Remap
Brand: Mercedes-Benz Trucks

Expected gains of +54 BHP and +150 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+54 hp (21%)

Standard

256 hp

Tuned

310 hp

Torque+150 Nm (15%)

Standard

970 Nm

Tuned

1120 Nm

Suitability

Moderate (5/10)

Gains Profile

Power-focused

Headroom

Medium

Mercedes-Benz Trucks Atego 1226 256hp ECU Remapping

Considering an ECU remap for your Mercedes-Benz Trucks Atego 1226 256hp? A Stage 1 remap can take this All diesel engine from 256 BHP to 310 BHP and from 970 Nm to 1120 Nm of torque (naturally aspirated). This engine scores 5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz Trucks Atego can achieve.

How this engine compares

19thof 57 Mercedes-Benz Trucks Atego engines by power gain
81%of the 9,842 engines we hold gain data for see a smaller power increase
92%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

The Mercedes-Benz Trucks Atego 1226 256hp is a naturally aspirated unknown fuel type engine producing 256 BHP and 970 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 310 BHP and 1120 Nm — a gain of around 54 BHP (21%) and 150 Nm (15%).

This engine has limited remap suitability, with gains weighted towards peak power — the improvement is most noticeable at higher RPM. The tuning headroom is classified as moderate, 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 Atego All Engines

Engine	BHP	Gain	Torque	Gain	Score
712 122hp	122 → 175	+53	470 → 590	+120	Good (6.5/10)
812 122hp	122 → 175	+53	470 → 590	+120	Good (6.5/10)
713 129hp	129 → 180	+51	500 → 620	+120	Good (6.5/10)
813 129hp	129 → 180	+51	500 → 620	+120	Good (6.5/10)
715 150hp	150 → 200	+50	580 → 700	+120	Moderate (5.5/10)
815 150hp	150 → 200	+50	580 → 700	+120	Moderate (5.5/10)
1215 150hp	150 → 200	+50	580 → 700	+120	Moderate (5.5/10)
1015 150hp	150 → 200	+50	580 → 700	+120	Moderate (5.5/10)
915 150hp	150 → 200	+50	580 → 700	+120	Moderate (5.5/10)
1216 156hp	156 → 210	+54	610 → 730	+120	Moderate (5.5/10)
916 156hp	156 → 210	+54	610 → 730	+120	Moderate (5.5/10)
716 156hp	156 → 210	+54	610 → 730	+120	Moderate (5.5/10)
1016 156hp	156 → 210	+54	610 → 730	+120	Moderate (5.5/10)
816 156hp	156 → 210	+54	610 → 740	+130	Moderate (5.5/10)
817 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
1217 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
1317 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
917 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
1017 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
1517 170hp	170 → 230	+60	670 → 800	+130	Moderate (5.5/10)
1518 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
1318 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
1018 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
918 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
818 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
1218 177hp	177 → 240	+63	675 → 810	+135	Moderate (5.5/10)
822 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
922 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
1522 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
1222 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
1022 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
1322 218hp	218 → 270	+52	810 → 940	+130	Moderate (5/10)
1323 231hp	231 → 280	+49	810 → 940	+130	Moderate (5/10)
1823 231hp	231 → 280	+49	810 → 940	+130	Moderate (5/10)
1523 231hp	231 → 280	+49	810 → 940	+130	Moderate (5/10)
823 231hp	231 → 280	+49	810 → 945	+135	Moderate (5/10)
1023 231hp	231 → 280	+49	810 → 940	+130	Moderate (5/10)
1223 231hp	231 → 280	+49	810 → 940	+130	Moderate (5/10)
923 231hp	231 → 280	+49	810 → 950	+140	Moderate (5/10)
924 238hp	238 → 295	+57	850 → 1000	+150	Moderate (5.5/10)
1024 238hp	238 → 295	+57	850 → 990	+140	Moderate (5.5/10)
1224 238hp	238 → 295	+57	850 → 990	+140	Moderate (5.5/10)
1324 238hp	238 → 295	+57	850 → 990	+140	Moderate (5.5/10)
1524 238hp	238 → 295	+57	850 → 990	+140	Moderate (5.5/10)
824 238hp	238 → 295	+57	850 → 990	+140	Moderate (5.5/10)
1526 256hp	256 → 310	+54	970 → 1120	+150	Moderate (5/10)
1326 256hp	256 → 310	+54	970 → 1120	+150	Moderate (5/10)
2528 279hp	279 → 329	+50	1100 → 1230	+130	Moderate (4.5/10)
1828 279hp	279 → 330	+51	1100 → 1230	+130	Moderate (5/10)
1328 279hp	279 → 329	+50	1100 → 1230	+130	Moderate (4.5/10)
1228 279hp	279 → 329	+50	1100 → 1230	+130	Moderate (4.5/10)
2628 279hp	279 → 329	+50	1100 → 1230	+130	Moderate (4.5/10)
1529 286hp	286 → 329	+43	1100 → 1230	+130	Moderate (4.5/10)
1329 286hp	286 → 340	+54	1120 → 1260	+140	Moderate (5/10)
1229 286hp	286 → 340	+54	1120 → 1250	+130	Moderate (5/10)
1833 326hp	326 → 380	+54	1300 → 1430	+130	Moderate (4.5/10)

Technical Specifications

Fuel Type: Diesel
Aspiration: Naturally Aspirated
Type: Commercial
Engine Family: Mercedes-benz Trucks 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.

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Confirm Your Vehicle

MakeMercedes-Benz Trucks

ModelAtego

GenerationAll

Engine1226 256hp

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.