Trucks / HGV · ECU Remapping
Mercedes Trucks Actros OM502 - 551 (Euro 4/5) 551 hp Tuning (2004–)
Factory specification and Stage 1 remap gains for the Mercedes Trucks Actros OM502 - 551 (Euro 4/5) 551 hp (2004–). A Stage 1 calibration adds 89 BHP and 400 Nm — software only, no hardware modifications required.
| Measure | Original | Stage 1 | Stage 2 |
|---|---|---|---|
Power BHP | 551 | 640 +89 BHP · +16% | 650 +99 BHP · +18% |
Torque Nm | 2600 | 3000 +400 Nm · +15% | 3020 +420 Nm · +16% |
+89 BHP
Stage 1 power gain
+400 Nm
Stage 1 torque gain
Power & torque curves
Illustrative Performance Curve
Illustrative curve generated from published/estimated peak figures. This is not an individual rolling-road test. Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM); peak figures match the published database values.
Hover / touch the graph
Stock: 551 bhp · 2600 Nm (peak)
Stage 1: 640 bhp · 3000 Nm (peak)
Stage 2: 650 bhp · 3020 Nm (peak)
Tuning tool compatibility
This ECU was not found in the manufacturer compatibility databases we cross-reference.
AutoTuner
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Alientech KESS3
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Magicmotorsport FLEX
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Dimsport New Genius / New Trasdata
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Existing customers upload their ECU file via the Regal Tuning File Portal. New to Regal? Request a quote first.
20+ years of ECU calibration
Ready to unlock your Mercedes Trucks Actros's real performance?
Tell us your truck and registration — we'll confirm support and the exact expected gains for your engine before any work begins.