Water egress

[Forty_Two]

2022 M3 LR . . . .On my return home I noticed a large water trail marking the route I took backing out of my driveway. I noticed the same thing last week. Clearly it has come from the car but was it rain water accumlating somewhere or some other water AND is it something I should be concerned about?

Note 1: The car was park on the driveway for 2 days on a slight incline, it did rain on an off in that peirod.
Note 2: This is the first time since getting the car I have had it parked in that place / position (the wife's parking spot)

 

[Sean.]

It’s probably just rainwater caught up above a drain point (or possibly a clogged drain point) as the car was parked on a slight incline. Unless there’s water going into the car interior, then nothing to worry about.

 

[Forty_Two]

It’s probably just rainwater caught up above a drain point

Where is the drain point / where on the car might the blockaage be?

 

[Durzel]

Don't think you should be concerned. The same thing has been reported multiple times by different people.

The word around the campfire is that the car occasionally "does something" (technical term) with the A/C to ensure that it is running properly, cleaning out any algae/mould. I think it's a dehumidifying process.

I doubt very much anything is actually blocked.

 

[Sparkeur]

All cars with air-conditioning seep water that has been extracted from the cabin air. As Tesla a/c would appear to have a mind of its own as to when it operates, I'll take a guess that's what it is. I can't think of any other water source apart from the wiper reservoir.

 

[Sean.]

Where is the drain point / where on the car might the blockaage be?

Don't know on a 3. I know if I park nose pointed down in an X I can get standing water which then runs out when the car is on the level. Try parking the other way around in the same spot and see if you get the same run-off when you move.

 

[NewbieT]

The rear undertray can collect water. I wouldn’t worry about it.