BMW ISN Reset & Immobilizer

Remote ISN reset and immobilizer synchronisation for BMW and MINI after an engine, transmission or control-unit swap. Covers ZF 8HP (F and G Series), DCT and 7DCT300 gearboxes, EGS/EGS7, MG1/MD1 and MSV80 DMEs, EME units on hybrids and EVs, and CAS3 ELV.

When an ISN reset is needed
After replacing an engine control unit (DME), gearbox control unit (EGS) or immobilizer module, the parts must share the same Individual Serial Number (ISN) before the car will start and shift normally. We read and write ISN data remotely so the new or used unit matches your car.

Gearboxes, DMEs and EV units we cover
We reset ISN on ZF 8HP gearboxes in F and G series cars and the E70/E71, the M3/M4 DCT, EGS7 and the MINI 7DCT300. We also read and write MG1/MD1 DMEs, reset MSV80 and MG1/MD1 working hours, synchronise EME units on hybrid and electric BMWs, and switch off the CAS3 steering lock (ELV).

Before you book
Tell us which unit was replaced, your VIN and the fault codes shown. We confirm whether the job can be done remotely and what equipment you need before you order.

Related services
Also see our Module Programming & Repair and Secure Coding & Engineering Tools services, or browse all services.