Under bonnet trim and drainage

Tux · 05-28-2016, 03:19 PM

I did a quick search in the UK sub forum so apologies if this has been discussed before and would be grateful for a link to the thread.

Has anyone noticed there are 2-3 areas in the trim under the bonnet where water can collect and there aren’t any drainage holes? I’ve highlighted a yellow box around the area I’m talking about.

Without water:

I see the winderscreen wiper does have a drainage hole so any ideas if there is suppose to be a hole and what they are suppose to do?

Watsey · 05-28-2016, 03:34 PM

I can't see your pics. Can anyone else see them ?

DarrenL_007 · 05-28-2016, 03:39 PM

Part of my drying process is to scoop water out of there and give it a wipe.

Tux · 05-28-2016, 03:42 PM

sorry hopefully fixed now.

NorthEastX5 · 05-28-2016, 03:51 PM

Yes water collects along there in my F36 as well. I usually scoop it out after a wash. I was considering creating a little drain hole myself. Not sure if that's a good idea as I don't know what's under that panel and I'm sure proper drain holes are not just a hope but have some kind of rubber piping directing excess water to road surface?

Tux · 05-28-2016, 04:05 PM

Quote:

Originally Posted by NorthEastX5

Yes water collects along there in my F36 as well. I usually scoop it out after a wash. I was considering creating a little drain hole myself. Not sure if that's a good idea as I don't know what's under that panel and I'm sure proper drain holes are not just a hope but have some kind of rubber piping directing excess water to road surface?

I'm glad it's not just me. I just scooped out a lot of dirt today because it was the first time i had the bonnet up as i was cleaning it.

I found it odd because there is a drainage channel below and infront of the highlighted area (left of the picture). You can see the small sediment 1 level below and for it to be so close I thought it could've been a fault.

philiper1 · 05-28-2016, 04:33 PM

The same stupid design issue on my F21

Richtw · 05-28-2016, 11:43 PM

I had the same on my F36 - after some digging around it turns out that we do indeed have the actual drainage channels underneath but no holes for the water to reach them! I went through with a 6mm drill bit on a slow speed! Perfect!

On the cars you are referring too do you have a hole on the drivers side? Just not the middle and passenger side? The f36 had one hole so I added another 2

Tux · 05-29-2016, 03:06 AM

Quote:

Originally Posted by Richtw

I had the same on my F36 - after some digging around it turns out that we do indeed have the actual drainage channels underneath but no holes for the water to reach them! I went through with a 6mm drill bit on a slow speed! Perfect!

On the cars you are referring too do you have a hole on the drivers side? Just not the middle and passenger side? The f36 had one hole so I added another 2

That's exactly what I see. The wiper arm with the hole is on the driver side and the first picture is from the passenger side. I saw one towards the middle as well but it was smaller than the passenger side.

Did you drill a hole straight down on both?

ukbeemerboy · 05-29-2016, 03:58 AM

There is a quality enhancement for removal of grommets. Have your cars had it done?

Tux · 05-29-2016, 05:17 AM

Quote:

Originally Posted by ukbeemerboy

There is a quality enhancement for removal of grommets. Have your cars had it done?

Mine hasn't been back to stealer yet. Any ideas when the enhancement came out or any other details?

Richtw · 05-29-2016, 05:42 AM

I just drilled straight through at the bottom of the dip! It is only about 3mm thick and you only need to go just through it! The drainage channels are there as it 'tested' it with a jug of water after I had done it!

NorthEastX5 · 05-29-2016, 10:38 AM

Quote:

Originally Posted by Richtw

I had the same on my F36 - after some digging around it turns out that we do indeed have the actual drainage channels underneath but no holes for the water to reach them! I went through with a 6mm drill bit on a slow speed! Perfect!

On the cars you are referring too do you have a hole on the drivers side? Just not the middle and passenger side? The f36 had one hole so I added another 2

Can you post some pics of where you drilled through??

NorthEastX5 · 05-29-2016, 10:40 AM

Quote:

Originally Posted by ukbeemerboy

There is a quality enhancement for removal of grommets. Have your cars had it done?

Really?? My car was in there last week having the damaged grille replaced should they have picked this up??

Richtw · 05-29-2016, 01:27 PM

Will post some tomorrow for you

planemad · 05-29-2016, 03:21 PM

There is also another water holding pool on top on my LED headlights. I'm always give the engine a little wipe over after a wash and just wicker these up.

Tux · 05-29-2016, 03:51 PM

Quote:

Originally Posted by planemad

There is also another water holding pool on top on my LED headlights. I'm always give the engine a little wipe over after a wash and just wicker these up.

Any pictures and is that on both head lights?

planemad · 05-29-2016, 04:00 PM

Quote:

Originally Posted by Tux

Any pictures and is that on both head lights?

It's on both, it's about 6mm deep and holds water. I will try to photograph tomorrow.

ukbeemerboy · 05-29-2016, 04:26 PM

Quote:

Originally Posted by NorthEastX5

Really?? My car was in there last week having the damaged grille replaced should they have picked this up??

It depends on the age of your cars, our 2012 car had to have it done, the 2014 already had the enhancement at build.

lobeydosser · 05-29-2016, 05:41 PM

You may have seen and checked this place, too - but just in case....

There is a deep well in hte engine bay, on the driver's side where the steering column (I think) and the wiring loom come through from the cabin. This really fills up with water to the extent that I syphoned about 3 litres of water out of it before taking it to the dealer.
I think this is the "enhancement" where they remove a grommet at the bottom of the cavity which lets it drain normally.
After that is done they're no problem at all.

NorthEastX5 · 05-30-2016, 12:59 AM

Quote:

Originally Posted by ukbeemerboy

Quote:

Originally Posted by NorthEastX5

Really?? My car was in there last week having the damaged grille replaced should they have picked this up??

It depends on the age of your cars, our 2012 car had to have it done, the 2014 already had the enhancement at build.

Well mine is a Nov 2015 build hmmmm

ukbeemerboy · 05-30-2016, 02:30 AM

Quote:

Originally Posted by lobeydosser

You may have seen and checked this place, too - but just in case....

There is a deep well in hte engine bay, on the driver's side where the steering column (I think) and the wiring loom come through from the cabin. This really fills up with water to the extent that I syphoned about 3 litres of water out of it before taking it to the dealer.
I think this is the "enhancement" where they remove a grommet at the bottom of the cavity which lets it drain normally.
After that is done they're no problem at all.

Yes, that is what the enhancement addressed I believe, though my car doesn't collect water where others have shown above or on the headlights.

05-28-2016, 03:19 PM	#1
Tux Private First Class 23 Rep 130 Posts Drives: BMW Join Date: Jan 2012 Location: England iTrader: (0)	Under bonnet trim and drainage I did a quick search in the UK sub forum so apologies if this has been discussed before and would be grateful for a link to the thread. Has anyone noticed there are 2-3 areas in the trim under the bonnet where water can collect and there aren’t any drainage holes? I’ve highlighted a yellow box around the area I’m talking about. Without water: I see the winderscreen wiper does have a drainage hole so any ideas if there is suppose to be a hole and what they are suppose to do? Attached Images Last edited by Tux; 05-28-2016 at 03:41 PM..
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05-28-2016, 03:34 PM	#2
Watsey Major General 6461 Rep 8,524 Posts Drives: F31 330D sDrive M Sport Join Date: Jun 2015 Location: On sabbatical. iTrader: (1)	I can't see your pics. Can anyone else see them ? __________________ Current : F31 330sD, remapped, Ohlins Road & Track, Millway camber plates, Quaife LSD, Stoptech brakes + Pagid RSL1 pads all round, Weichers front strut brace, Eibach front & rear anti-roll bars, Michelin MP4S.
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05-28-2016, 03:39 PM	#3
DarrenL_007 Lieutenant 209 Rep 542 Posts Drives: F36 430d xDrive M Sport GC Join Date: May 2015 Location: West Midlands iTrader: (0) Garage List 2015 BMW 430d xDriv ... [0.00]	Part of my drying process is to scoop water out of there and give it a wipe. __________________ 440i GC M Sport : Arrived 25th May 2018 Mineral Grey / Ivory White Dakota Leather / Reversing Camera / Folding/Auto Dipping Mirrors / Park Assist / Sun Protection Glass / Electric Glass Sunroof / Heated Steering Wheel / Icon Adaptive LED Headlights / 19" 704M Alloys / Digital Cockpit / Head-up Display / Wifi Hotspot / Driving Assistant / Speed Limit Display / Harmon Kardon Loudspeakers / High-Beam Assist / Enhanced Bluetooth - Wireless Charging / Online Entertainment / M Sport Brakes / Comfort Access / Extended Storage
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05-28-2016, 03:42 PM	#4
Tux Private First Class 23 Rep 130 Posts Drives: BMW Join Date: Jan 2012 Location: England iTrader: (0)	sorry hopefully fixed now.
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05-28-2016, 03:51 PM	#5
NorthEastX5 Lieutenant 151 Rep 403 Posts Drives: X5 F15 3.0d M-Sport / 435i F36 Join Date: Sep 2015 Location: UK iTrader: (0)	Yes water collects along there in my F36 as well. I usually scoop it out after a wash. I was considering creating a little drain hole myself. Not sure if that's a good idea as I don't know what's under that panel and I'm sure proper drain holes are not just a hope but have some kind of rubber piping directing excess water to road surface?
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05-28-2016, 04:33 PM	#7
philiper1 Colonel 771 Rep 2,468 Posts Drives: F21 M135i LCI Join Date: Jan 2014 Location: Norfolk iTrader: (1) Garage List 2006 BMW Z4 Coupe [0.00] 2016 BMW M135i [0.00]	The same stupid design issue on my F21 __________________ Current: F21 M135i Mineral Grey and few options Previous: F30 320i XDrive, E85 2.5i, E21 323i
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05-28-2016, 11:43 PM	#8
Richtw Private First Class 56 Rep 185 Posts Drives: AMG C43 Join Date: May 2015 Location: South iTrader: (0)	I had the same on my F36 - after some digging around it turns out that we do indeed have the actual drainage channels underneath but no holes for the water to reach them! I went through with a 6mm drill bit on a slow speed! Perfect! On the cars you are referring too do you have a hole on the drivers side? Just not the middle and passenger side? The f36 had one hole so I added another 2
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05-29-2016, 03:58 AM	#10
ukbeemerboy Beemer Heaven 462 Rep 2,941 Posts Drives: BMW M4 Competition Join Date: Feb 2007 Location: Somerset UK iTrader: (0) Garage List 2018 BMW F82 M4 Comp [0.00] 2017 BMW F30 330d M ... [0.00] 2014 BMW F30 330d M ... [0.00] 2009 BMW E90 330d M ... [0.00] 2006 BMW E90 330d M ... [0.00] 2002 BMW E46 325i S ... [0.00]	There is a quality enhancement for removal of grommets. Have your cars had it done? __________________ Scott 2018 BMW M4 Competition 2019 Mini Countryman Cooper S : 2008 Mini Cooper
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05-29-2016, 05:42 AM	#12
Richtw Private First Class 56 Rep 185 Posts Drives: AMG C43 Join Date: May 2015 Location: South iTrader: (0)	I just drilled straight through at the bottom of the dip! It is only about 3mm thick and you only need to go just through it! The drainage channels are there as it 'tested' it with a jug of water after I had done it!
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05-29-2016, 01:27 PM	#15
Richtw Private First Class 56 Rep 185 Posts Drives: AMG C43 Join Date: May 2015 Location: South iTrader: (0)	Will post some tomorrow for you
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05-29-2016, 03:21 PM	#16
planemad Lieutenant Colonel 777 Rep 1,645 Posts Drives: 2020 Audi SQ7 & 2019 AM DB11 Join Date: Mar 2013 Location: The Democratic Peoples Republic Of South East England iTrader: (0)	There is also another water holding pool on top on my LED headlights. I'm always give the engine a little wipe over after a wash and just wicker these up.
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05-29-2016, 05:41 PM	#20
lobeydosser Second Lieutenant 105 Rep 251 Posts Drives: 320d auto active suspension Join Date: Dec 2013 Location: Glasgow iTrader: (0)	You may have seen and checked this place, too - but just in case.... There is a deep well in hte engine bay, on the driver's side where the steering column (I think) and the wiring loom come through from the cabin. This really fills up with water to the extent that I syphoned about 3 litres of water out of it before taking it to the dealer. I think this is the "enhancement" where they remove a grommet at the bottom of the cavity which lets it drain normally. After that is done they're no problem at all. __________________
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