B107BF0: Rear parking aid sensor Function limitation due to environmental influences
Diagnostic trouble code B107BF0 — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does B107BF0 mean?
B107BF0 indicates: Rear parking aid sensor Function limitation due to environmental influences.
This relates to the Body system.
Common causes of B107BF0
Rear bumper very dirty
Rear bumper wetted with salty water (e.g. after driving on gritted roads)
Environmental influences impairing sensor visibility (leaves, snow, heavy spray, dirt)
What to check (live data)
Distance of individual rear sensors from an obstacle
Minimum distance for the 4 rear sensors
Voltage supply for parking aid sensors
Decay times of the individual rear sensors
Reverse gear engaged yes/no
Trailer attached yes/no
Vehicle speed
Parts often involved in B107BF0
G203 Rear left parking aid sender
G204 Rear centre left parking aid sender
G205 Rear centre right parking aid sender
G206 Rear right parking aid sender
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for B107BF0 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
B107BF0 is a diagnostic trouble code: Rear parking aid sensor Function limitation due to environmental influences.
What are the common causes of B107BF0?
Common causes include: Rear bumper very dirty, Rear bumper wetted with salty water (e.g. after driving on gritted roads), Environmental influences impairing sensor visibility (leaves, snow, heavy spray, dirt). The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving with B107BF0?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix B107BF0?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for B107BF0 on your specific vehicle.