LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 190 (General Orphan Data (2 Of 2)) >> If the DME control unit is replaced: Program/code DME control unit

If the DME control unit is replaced: Program/code DME control unit

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2025 BMW X4, 2024 BMW X4, 2023 BMW X4, 2022 BMW X4, and 2021 BMW X4. However, it is still accessible from the selected car via links, so may be relevant.

Encode/program control unit(s) 

Precondition 

Component has been replaced.

NOTE: TECHNICAL INFORMATION 
Use the most recent software version to prevent faults during programming/coding.
Battery voltage must not drop below 13.0 V during programming.
Only use chargers recommended by BMW for low-voltage vehicle electrical systems.
NOTE: TECHNICAL INFORMATION 
No high-voltage switch off is required  in electric vehicles or hybrid vehicles for programming/coding.
The high-voltage system is switched off automatically by the programming system.

Reset ultra-small quantity adaptation 

NOTE: TECHNICAL INFORMATION 
If the DME control unit or an injector is replaced, minimum quantity adaptation must be reset. If an injector has been replaced on cylinder side, the minimum quantity adaptation must also be reset.