Vehicle Information Storage

The BC1 stores the total mileage and service interval data (SIA) in memory as back up for the IKE; this function is identical to that of the light switch center (LSZ) on the E46.

The Vehicle Identification Number (VIN) is entered during coding of the BC1 and can only be over-written if the total mileage is less than 100 km. The VIN's stored in the IKE and BC1 are checked each time the ignition is switched on.

The mileage and SIA data is also updated in the BC1 after 100 km of continuous driving.

The BC1 will not accept mileage from the IKE if the value stored is over 1000 km less than that stored in the IKE. If this occurs the BC1 must be replaced.