Submerged Parking Sensor Controller

[Mirez]

For all those that were interested in repairing the parking sensor controller once it's been submerged, you might want to think again:

 

 

 

Many thanks to Malo225 for sending me his defective unit for inspection, as you can see on the face of it it looks fairly terminal - some serious corrosion has taken place to a number of the SMD components and even the PCB tracks have lifted in a few places where the board itself is rusting... my first impressions are that it's unrepairable but I'll be doing some measuring later to find out just how bad the electrical damage is and I'll report back to you all then!

[gregers]

bloody hell,good luck m8.

[Bigjeeze]

That's just how my MK1 looked when the floor flooded. All I did was scrub it clean with a nail brush under running water - then put it in the oven on a very low setting until it had dried out. When I re installed it all worked fine and in fact still is some 5 years later. Hope you are just as lucky!!

[cyborg]

http://www.youtube.com/watch?v=lwx2ce_AyOE&feature=player_detailpage

[gregers]

http://www.youtube.com/watch?v=lwx2ce_AyOE&feature=player_detailpage

 

 

:16: :16: :16:

[Mirez]

lol, well not quite as it now works, well partly. :16:

 

BJ this was well beyond a wash off, the track had lifted in a number of places so washing it would have made it worse if anything.

 

Gave it an acid bath to start with to strip back some of the crud, then reflowed the solder around the controller where a number of the pins had corroded together. Had to remake a total of 17 joints elsewhere on the PCB and patch in 3 new wires where the track was broken but it fires up, responds to VagCom and seems to work fine with just the rear sensors connected however it still errors with the fronts connected so there are still issues with the board that I'll have to look over later - since its all SMD compentry my eyes have had enough now lol

 

So to sum up, its not the end of the world if the controllers been submerged but the quicker you get to it the higher the chance of recovery.