Bmw f13 640d 12 litres of water found in boot help!

[MATT2336]

Hi please can anyone assist. My idrive suddenly stopped working I say suddenly only change was night before Mrs hit a curb near side wheel quite hard quite fast. I drive continued working that night and next day. Then when parked for half hour went back to it and flickered would not work at all. Also I drive controller function no lights nothing no radio etc and no parking sensors other than that car is fine ha

lifted boot mats up to start with boot fuses and found about 12 litres of water had somehow gone through the covers and totally covering all electric and battery! Managed to get it all out and that’s where I am at really.

car works fine but no i drive or reverse or front sensors no radio no cd etc and no faults showing on car dashboard

an anyone start me off with where the idrive actually located in the boot? Even better what it looks like?

it could well be that the idrive has just failed and I have been fortunate to find the water not even concerned how it has all got in yet that’s for another day.

sensible practical help appreciated 

thanks 

Matt 

[Greydog]

See my other answer to your earlier post Matt

[Rij]

Hi. I’m literally in the same situation. Did you manage to get it fixed? If so, how?

[Greydog]

Morning Kashem

Welcome to the Forum

Matts post is a few years old and he never did follow up to let us know if he fixed it or sold the car

The iDrive is built into the CiC Infotainment system in the front of the car the iDrive controller is also at the front. What is in the boot is the active sound controller and may be the Amp. 

A diagnostic scan using a BMW capable scanner should help identify where the issue  is. First thing is get rid of the water and try to find where its coming in and fix that. Then check the fuses front and rear also check the loom carefully beneath the fuse board in the rear BMW use a cable jointing system that compress's copper wires together they are then covered with a clear plastic sleeve (see the attached  picture) in the picture the thin green wires and Orange green trace are for the Can Bus system the black colour is corrosion 3 of 5 wires just fell out when I moved them I cut off the splice and remade the joint with solder and a shrinkwrap cover. I have found this now on 5 different BMW's that friends and family have brought to me with Can bus problems everything from radio not working nav stopped access system issues lights not working 

If you have had water in there I guess the loom has been submerged so worth a check in my X5 they were bundled in the main loom right beneath the fuse board and rear light (which leaked) I remade all the 5 splices you see in the picture

Hope it helps

Dave