Junior Member, warming up (<31 posts)
Join Date: Jun 2019
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All the things you should NOT do when buying an E61 M5
Brand new member, first post. I will explain in more detail shortly, but for now I need your advice please.
You remember that scene in ‘Herbie goes bananas’ when the bad guy puts Irish coffee into Herbie’s fuel tank, and Herbie goes....bananas. That’s exactly what happened to my M5 touring yesterday. Completely bat %%^£ crazy. Wipers going, headlights on and off, door locking and unlocking, gauges lighting up like July 4th, ALL of the warning signs, etc.
A quick search on the net = check the spare wheel well (which is actually the electronics and battery well) for water.
As soon as I open the boot i can see condensation. I life the boot pan and I see water in the tools section. I open the left cubby and all the Electricals are covered in water. I lift the tool section of the boot and I see 3 inches of water. It’s all over all of the modules, the battery etc.
That explains it.
The question is: where is it coming from:
1. Blocked hose ends from the pan roof in the left and right cubbies
2. Rear headlight seal
3. Rear boot seal
None of these, I believe explain how the water has dispersed from the left hand cubby hole, throughout the entire boot area, UNLESS, when the hose ends from the pan roof become blocked due to the grommets at the bottom, the pipes leak not from the bottom, but from the top of the pipe, in the sun roof cassette somewhere.
As I type this, I think that must be the explanation.
So what I think i need to do, is to remove the grommet by pulling hard on the hose, then to clear out the pipes by remove the pipe entirely and blowing compressed air through them.
I know the headliner needs to be dropped for the second point. I haven’t searched for it yet, but i assume there will be a DIY on here somewhere.
A pleasure to meet you all.