What to ask the dealer before the visit
Tell the dealer about the tune and ask whether the planned work includes programming the engine ECU or the gearbox control unit. If there’s a fault, recall or manufacturer campaign, ask what the update is for. Keep any paperwork showing which module the dealer programmed.
What to check afterwards
If the car feels different afterwards, send us the job sheet and describe the change. We may need to identify the current ECU software before confirming whether the tune was overwritten and whether it can be reinstated. If a warning light has appeared or the car is running poorly, mention that so the cause can be investigated first.
Some vehicles need specialist access to tune the ECU again after an update. See the BMW ECU unlock guide for an example of why software version and access matter.
Reinstalling the tune or returning to stock
Under our terms, if an update overwrites an A* tune, we may be able to reinstall a suitable calibration for £60 when the ECU remains compatible and unlocked. If you ask to return to stock at a later visit, the usual charge is £60 when we have the correct original calibration and access is unchanged. We quote additional access or unlock work separately.
Tell us if another installer supplied the tune. Let us know what paperwork or original software is available so we can check your options. Read the A* calibration warranty and restoration terms.