Adjusting the front radar sensor (FRS)
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
TECHNICAL INFORMATION
Notes on the adjustment of the ACC sensor are a fundamental requirement for these repair instructions and must be complied with at all times.
For additional information see: 66 31... NOTES ON ADJUSTING THE ACC SENSOR .
Notes on the adjustment of the ACC sensor are a fundamental requirement for these repair instructions and must be complied with at all times.
For additional information see: 66 31... NOTES ON ADJUSTING THE ACC SENSOR .
NOTE:
TECHNICAL INFORMATION
If there is a "Sensor misadjusted" fault memory entry and a correct sensor alignment using the adjustment screw is not possible, there is a suspicion of front impact damage.
In this case, the vehicle must be carefully inspected for damage. If necessary, damaged parts must be replaced. Then adjust the ACC sensor again.
A damaged/bent holder indicates a mechanical misuse of the vehicle and will not be considered to be a warranty case.
If there is a "Sensor misadjusted" fault memory entry and a correct sensor alignment using the adjustment screw is not possible, there is a suspicion of front impact damage.
In this case, the vehicle must be carefully inspected for damage. If necessary, damaged parts must be replaced. Then adjust the ACC sensor again.
A damaged/bent holder indicates a mechanical misuse of the vehicle and will not be considered to be a warranty case.
Checking the vehicle and components for damage
Check
- In the visible areas, precise visual inspection of:
- damage
- deformation
Result
» Damage or deformation.
Measure
- Identify damaged, deformed vehicle parts and replace.
Result
» No damage or deformation
Measure
Adjust front radar sensor (FRS).
- Stage special tools 0 442 898 and 2 338 466 .
- Set up the special tool as per provided operating instructions.
- Connect diagnostic system.
- Service functions
- Driver assistance
- Front radar sensor (FRS)
- Commissioning the front radar sensor (FRS)
NOTE:
Schematic diagram is for example purposes. Some parts may differ in certain details.
- To adjust the front radar sensor (FRS), twist screw (1) using the standard tool.
Standard tools:
Screwdriver for hexagon socket SW3
Screwdriver for hexagon socket SW3
(Shaft length> 90mm)