APPRO2 BMW G Series Mileage Reset Need A Filter?

 When resetting the mileage on a BMW G-Series BDC2 system using Appro2 or other compatible programmers, one critical question arises: Do you need a filter (mileage blocker) or not?

 

The answer depends on two factors:

1. Resetting mileage for the BDC2 module only or resetting mileage of both BDC2 and cluster.

2. The type of instrument cluster (full digital, hybrid, or mechanical). Whether the instrument supports OBD.

Below, we break down the key considerations for mileage correction.

 

1. BDC2 Mileage Reset 

All BDC2 units currently support mileage reset (using Function 0050).

APPRO2 supports BMW BDC2 mileage reset via OBD directly.

• No additional hardware (filter/simulator) is needed.

• Simply connect via OBD and reset the stored mileage.

1. Instrument Cluster Mileage Reset 

How to check if G series cluster mileage can be reset by APPRO2 via OBD or not?

1.Auto detection using function 0049. 

Connect vehicle via OBD, APP2 will auto detect if the cluster can be done via OBD or not.

2.If you don’t have car, check the cluster type. APPRO2 supports the following 3 types of clusters via OBD:

No filter required.

Limitation:

• • Only adjusts the cluster mileage (BDC2 remains unchanged).

  • “Asynchronous mode” means the cluster and BDC2 will show different mileages.

 

 

The following 2 types of clusters cannot be reset via OBD. 

For these unsupported cluster types, you need to add a filter or change the 35xx chip.

If you need to sync BDC2 module mileage data with instrument cluster (reset mileage on both BDC2 and cluster), you need to remove the cluster. It cannot be done via OBD.

You need to remove the cluster. Most of the full LCD ID6 cluster can directly rewrite the mileage in the cluster. Full LCD clusters can usually rewrite the eeprom data directly without filters and 35xx chips.

Mechanical clusters or semi-LCD usually cannot rewrite the chip data directly, and you may need to install an 35xx chip.

 

If you can accept the difference between the instrument and BDC mileage, observe the instrument types. If it belongs to the supported three types of instruments, you can directly use OBD without processing BDC, and there is no need to install filters and chips.

 

• If you only need the BDC2 changed → Use OBD (if supported).

• If you need BDC2 + cluster to match → Remove cluster + reset BDC2.

• Full digital clusters (ID6/ID7) → Usually no filter needed (direct EEPROM write).

• Mechanical/hybrid clusters → May require a filter or chip replacement.

 

APPRO2 mileage reset steps:

APPRO2 Updated BMW BDC2 Mileage Reset Function!