I think my left drain hole is blocked - how much £££?

[Sojourn]

Hi All,

I've noticed some water in the left side of my boot after it rains.

Some have said check the 3rd brake light - but that looks intact (no cracks anyway) So I think it must be the drain hole thing - I can't understand what has blocked it as it is never left under trees or anything.

I won't be able to take off my roof to fix this, so how much do you think it will cost me to rectify? My car has a BMW warranty but I don't think this would be covered...

Thanks,

DT

 

[srhutch]

You could check the drainage by lowering the roof slighly just enough to create a small trough in the hood and gently pour some water in and increase the level until it starts to come out (hopefully through the drain holes) this is what I have done a few times to check the drain holes.

That said I read a post recently of someone who paid a dealer £1k to replace motor, so if thats working fine still test as above then unblock using the how to on the forum

 

[EdButler]

Theres a good guide on here that someone did using a Vacuum Cleaner iirc... Have a quick search and you shall find!

Im going to check mine this weekend before the winter. If it is indeed blocked, im just going to get a compressed air line, stick it in the hole and slowly blast away Should work a treat (in theory!!) If theres any really icky bits, just use a nice sturdy wire to help it through.

 

[peddy]

Theres a good guide on here that someone did using a Vacuum Cleaner iirc... Have a quick search and you shall find!

Im going to check mine this weekend before the winter. If it is indeed blocked, im just going to get a compressed air line, stick it in the hole and slowly blast away Should work a treat (in theory!!) If theres any really icky bits, just use a nice sturdy wire to help it through.

http://68.230.199.103:8080/files/BMW_Z4_Errata/How%20to%20UnClog%20your%20SoftTop%20Drains.pdf

 

[Sojourn]

Thanks all,

I ran some water through and it came out ok, the boot is drying out now - maybe when Sytners cleaned it the other day after the service they did something - I'll keep an eye on it...

Cheers,

Dave

 

[ksher]

I thought BMW fixed the motors by wrapping it on all facelift models.

 

[srhutch]

I thought BMW fixed the motors by wrapping it on all facelift models.

they did, but you still want to keep the drain holes clear.

 

[ksher]

I thought BMW fixed the motors by wrapping it on all facelift models.

they did, but you still want to keep the drain holes clear.

Where are the locations of the drain holes?

 

[srhutch]

http://68.230.199.103:8080/files/BMW_Z4_Errata/How%20to%20UnClog%20your%20SoftTop%20Drains.pdf

where peddy said

 

[Spooky]

I wound myself up all week after reading this thinking mine gotta be blocking up, So I decided to unblock them both today.

Didn't bother with the jack and axle stands , I just got down and dirty. followed the removal instructions and.......nothing.
Both sides were clean as a whistle, I even blew compressed air down them and flushed them both through with warm water.

I am almost disappointed no crap came out. Still, it is piece of mind and it was a doddle to do.

 

[Sub]

I wonder if there is a lazy man's way of cleaning the crud out by just sticking a long, semi rigid piece of plastic tubing down from the top and forcing either water or compressed air down there...

 

[Adam D]

I was thinking maybe a long slender bottle brush might work...