Give the full engine and vehicle identity

Include registration, year, fuel, engine and transmission. SUV and model badges cover several powertrains and controller versions. Hybrid vehicles need identifying separately from conventional petrol or diesel applications.

Explain normal use and load

Describe motorway driving, towing or daily-road response and what you would like to change. A heavy vehicle’s calibration brief should consider sustained load and drivetrain condition, rather than only the largest peak torque claim.

Bring the maintenance and warning history

Share mileage, servicing, scans and any cooling, boost, emissions or transmission concerns. A warning or a new loss of power needs appropriate diagnosis before performance changes. Record earlier repairs and maps.

Check specialist access before booking

Current ECU and TCU support is confirmed for the exact hardware, software and operation. Protected access can affect appointment logistics. Access for engine calibration does not automatically prove transmission or replacement-data coverage.

Plan the engine and transmission handover

State existing software, servicing and shift symptoms. Supported combined work can be discussed where suitable. The quote identifies access, calibration, agreed checks and the practical location before an appointment is accepted.