PDC Unit location

[Perrier]

Hi all,
after a rainy day, my PDC will malfunction. After a few days of drying, it will function normally again.
Does anyone know location of the park distance control unit so I can check around it for water leaks?

Thanks

[Clavurion]

Unlikely caused by moisture on the module. More likely sensors or the connectors on sensors. Check with diagnostics.

https://bmwteka.com/wds/en/e53/774c2066#

[80stech]

+1 Especially if the error is coming from front or back, sensors and wiring/connections are highly suspect. The connector for the front sensors can be exposed to washer fluid leaks if I remember correctly and if any body work has been done there is a good chance that maybe the connector seals are missing or damaged.
The module itself is in the well behind the spare, the Bentley manual should have some really nice pics

[Perrier]

thank you so much for the feedback. I will go looking