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Check your scuttle drains!

Scuttle Drain Check  

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  1. 1. After checking it, was your drain blocked?



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I need to check mine - didn’t do it last year. Nearside is hard to see or get at. Last time I wrapped some rag around a long screwdriver and dipped it - it was dry. Contemplating getting the wheel off and wheel arch liner off but I'm at the age when getting out and getting under is getting less and less attractive. :lol:

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Just had to clear drivers side, pushbike inner gear cable worked eventually and a satisfying pile of crap and water appeared on the drive behind the front wheel

 

Planning on ripping it all apart at the weekend to remove all of the crud properly

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Two long cable-ties are good for this job. Thin end first to drive a hole through the mud and leaves etc, water should trickle out. Ram it up and down a few times to loosen debris. Then put thick end in and wait for it all to come out. It's a good ideo to thoroughly check ECE box inside. Water can get in there too easily. I drilled a hole in the bottom of mine, just in case water gets in. (Should be factory standard really) small piece of pipe glue in to assist water exit but not allow upwards ingress). Shuttle tray under windscreen above ECU are also is a vulnerable area for ingress. Especially from hose washing, car-wash or jet -washing car. Keep an eye on this area weekly in wet weather periods/areas. It could save you your bank balance or your car!

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What happens if I removed driver side grommet and not reinstalled it? I did that because I got huge problem with it! Cleaned this cunt this summer and last week when it was heavy rain, got alot of water in my drivers side front and rear floor. I was thinking what the fck!? My carpets was soaking in water. First checked driver drain hole and what you think...blocked rubber grommet...water was to bonnet release cable and it was running true there. So this time I pushed that shit grommet out and left open hole. Put silicone around bonnet cable, dried out carbets and foam under hope everything will be fine. Guys my car is lci 530d tried to find passenger drain grommet no chance or its different, I took off wheel, wheel cover and still cant see it only some plastic ball in place where ecu sits. I removed that ball, pour some water and it looks like water goes freely. So I have two questions, first is it ok to remove drain grommet and dont put it back in drivers side and does that white ball in passengers side under ecu box is drain hole? Thanks

Edited by ZaKaS

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did mine today and found it blocked....

 

Was going to check it anyway but when i was going to clean the rear window i noticed the footwell was wet in the driverside rear and front...

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I stripped out my cabin filter plastic housings to inspect the scuttle drains to find the grommet had been removed from the driver's side and as far as I could tell the passengers side is probably the same because a tissue wrapped screwdriver 'dip stick' came out only slightly damp at the end. Result!

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Checked mine today and they're dry BUT on the drivers side someone has obviously had a go before and partially pushed the rubber grommet seen in this photo (shamelessly stolen from https://www.bimmerfest.com/threads/help-with-understanding-water-flow-into-cabin-air-filter-housings.929764/)

image.png.ec70a642d34c4ee8a5fd045bc971ed7b.png

 

So it's no longer sealing against the body shell. Any water in there will bypass the rubber and end up underneath. Presumably this will just enter the scuttle channel anyway if the rubber is just a trim piece, or if not and it is integral to the drain route then that drain will be bypassed and water will just pour out over the body shell and run off the undertrays?

 

Most recent posts ask if the rubber grommet is needed, seems the answer is no from looking back over previous posts.

 

Putting it back in place looks hard, from a little prodding it seems pretty well attached lower down and doesn't want to come back into place.

Edited by Dave Dennis

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Finally a job I got round to, cars is now on 126k so was bound to happen at some point. 

 

The video below was useful about what was actually blocked, although it's American and the ECU box is on the RHS the liner for UK is the same as the video.

 

As for the LHS I removed the liner and there is a rubber grommet there although it seemed to have some plastic ball in there but checked what I could and it was dry and no blocked rubber grommet.

 

Another point to note, the RHS, where the pollen filter housinh inserts into the wing that area on the car was full of so much debris that I spent an age cleaning out stuff from there, behind the liner even in the side skirt! I will have to remove it later for proper cleaning out as I could only reach in so far with the longest pry bar. So it might be an area for people to also look at and check to make sure it's free and clear to make sure the grommet doesn't block again so easily.

20210814_141825.thumb.jpg.12d466bc97d78106974e1b7f35f667e3.jpg

20210814_160403.thumb.jpg.8ec11fee46a1329bca02e9cf371c87ad.jpg

 

Video: 

 

Edited by Numero9

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