Heavy trucks and tractor units
Whether a MAN, Mercedes-Benz Truck, Scania, Volvo Truck, DAF, Iveco or Renault Truck is technically suitable is assessed on the vehicle; the brand list is not a universal promise.
Trucks · vans · commercial vehicles
Software calibration and diagnostics for trucks and commercial vehicles
Power loss under load, limp mode, Euro VI warnings or irregular shifting cost operating time. MG AutoTech assesses engine and transmission software, ECU/TCU, live data and DPF, EGR, AdBlue, SCR and NOx systems for the individual vehicle.
Illustrative photo for computer-based commercial-vehicle diagnostics; not an MG AutoTech job. The person shown is not an MG AutoTech employee.
Relevant service areas
One starting point, clear technical detail.
This page explains the operating context. Technical detail remains on the established service pages so that explanations are neither duplicated nor contradictory.Software & drivetrainEngine software and calibration · Transmission and TCU calibration
Engine software and calibration
Calibrate torque delivery, response and output only after checking condition, load profile and control unit.
View service detailsTransmission and TCU calibration
Assess shift logic, torque release and protection limits only where the transmission and controller are technically suitable.
View service detailsDiagnostics & live dataDiagnostics, fault codes and live data
Diagnostics, fault codes and live data
Classify limp mode, derating, warnings and loss of power systematically instead of replacing parts on suspicion.
View service detailsControl units & dataECU / TCU and control-unit service · Control-unit cloning and data transfer · ECU repair and fault assessment
ECU / TCU and control-unit service
Check identification, readout, backup, programming and technical access for the system actually installed.
View service detailsControl-unit cloning and data transfer
When replacement is required, assess transfer to a technically matching unit; not every controller is fully readable or compatible.
View service detailsECU repair and fault assessment
Check supply, communication, hardware and data state, then assess repair, programming and replacement as separate routes.
View service detailsPrices and turnaround times shown on linked passenger-car offers do not automatically apply to these vehicle and machine classes. A specific quotation follows the technical pre-check.
Symptoms and search situations
Where does the technical assessment begin?
The same symptom can come from software, sensors, mechanics, electrics or the emissions system. Classification therefore comes before any change.Loss of power with payload
Under traction load or on gradients, output is missing, road speed cannot be maintained or the transmission shifts repeatedly.
Limp mode and engine derating
Torque or speed is limited. Fault codes, conditions and live data identify which system triggered the protection response.
AdBlue, SCR or NOx fault
Abnormal consumption, warnings, start restrictions or derating require separate checks of dosing, sensors, temperature and communication.
DPF regeneration does not complete
Urban duty, idle time, short cycles or a technical fault can inhibit regeneration. Loading and root cause are assessed first.
ECU/TCU, CAN or replacement controller
A communication failure, software issue or replacement unit may require programming, cloning/repair assessment or data-state recovery.
Torque and shift calibration
Engine, transmission, axle ratio, gross weight, cooling and duty profile must fit together; a generic passenger-car file is not suitable.
Vehicle and machine types
Which commercial vehicles can be submitted?
Brand and series are only the start. Engine, controller, software, transmission, emissions stage, body and real duty determine the assessment.Vans and light commercial vehicles
Panel vans, chassis cabs, tippers and service vehicles differ by body, payload, axle ratio, engine and controller generation.
Special and municipal vehicles
Sweepers, refuse vehicles and powered carriers can be submitted for engine-side assessment. Brake, body, lifting and safety controllers are not inferred as part of the service.
Operating context, not a generic file
Commercial-vehicle software must understand the working day.
Payload, trailer, axle ratio, route profile, idle share and shift length define the load. Calibration must respect reserves, cooling, transmission and protection functions. Output or fuel figures are not promised without vehicle and duty data.
Euro VI DPF, EGR, SCR, AdBlue and NOx components form a connected aftertreatment system. One warning can have several causes; active faults are diagnosed first and are not treated as normal tuning work.
Workflow
From the first message to a sound decision.
A clear workflow separates assumptions, the available data and the technical decision.- 01
Identify the machine precisely
Manufacturer, type, year of manufacture, engine, output, control unit and existing modifications are reviewed together.
- 02
Separate the fault from the data state
Warnings, fault codes, live data and real use determine whether diagnosis, repair or software work comes first.
- 03
Confirm feasibility and scope
Only after the pre-check are the work route, required documents and a specific quotation agreed.
Send the right information first time
Send these details for a commercial-vehicle pre-check.
Send vehicle data, duty profile and fault information together where possible. Multiple vehicles are identified individually; fleet or mobile service is not assumed.
Request a commercial-vehicle check via WhatsApp- 01
Manufacturer, model, final VIN characters and year of manufacture
- 02
Engine, output, transmission and emissions stage
- 03
Body, permitted gross weight and typical payload
- 04
Mileage, operating hours and typical route profile
- 05
Fault code, warning, freeze-frame or diagnostic report
- 06
Requested service and previous repairs/software work
Clear scope
Operational safety and availability come before modification.
Brakes, steering, tachograph, driver assistance, body and safety controllers are not covered by an engine/transmission software statement. A technical fault is not concealed by a power change.
Power or emissions changes can affect approval, operating permission and fleet rules. Road use and the actual duty are assessed separately before implementation.
Frequently asked questions
Frequently asked questions: Trucks and commercial vehicles
Which trucks and commercial vehicles can MG AutoTech assess?
Trucks, tractor units, vans, tippers and powered special vehicles can be submitted for a technical pre-check. Feasibility depends on the exact engine, ECU/TCU, software, transmission, emissions system and condition.
Is truck tuning the same as passenger-car tuning?
No. Gross weight, continuous load, transmission, axle ratio, cooling and duty profile have much greater influence. It must not be treated as a transferred passenger-car file.
Can an AdBlue or SCR fault limit output?
Yes. Depending on the detected fault, the control system can activate protection or derating strategies. Codes, measurements and system checks determine the cause.
Why is DPF regeneration interrupted in urban duty?
Temperature, journey duration, load, idle share, sensor values and existing engine faults can all matter. Diagnosis considers these conditions together.
Does MG AutoTech automatically offer mobile fleet service?
No. Location, quantity, vehicle type and required work route must be agreed first. This page does not promise nationwide on-site service.
Can a truck ECU or TCU be cloned or repaired?
Cloning or repair can be assessed where unit, data access, replacement part and fault are suitable. Complete readability or plug-and-play operation is not guaranteed.
Does a truck power change require approval?
It depends on vehicle, change, evidence and operation. Technical approval, registration and operating permission are clarified for the vehicle before work.
Manufacturer and regulatory sources for context.These links explain system and operating boundaries. They do not replace diagnosis or a vehicle-specific approval assessment.
Trucks · vans · commercial vehicles