water in floor
Thread Starter
Newbie
Joined: Dec 2012
Posts: 4
Likes: 0
S500
water in floor
After a huge rain this weekend I noticed a wet passenger floor. I can see water in my air box and assume the drain is clogged. Is there any way to clear the clog with out taking off the airbox.
Does any one know where the drain is located in the bottom of the airbox?
Does any one know where the drain is located in the bottom of the airbox?
Junior Member
Joined: Feb 2005
Posts: 67
Likes: 0
From: UK
S 320 - 2001
This is a bad design, which Mercedes considered bad enough to have a small emergency drain with flap to be installed in the airbox in case it fills with water and floods the electrics! Your car should have had it done at the dealers ( for free) Poke a length of wire through the box grill and clear some of the rubbish from the bottom to allow it to soak away. Mine flooded and soaked the electics and almost caused me to have an accident when evrything died on me at 70 mph !
Here you go, all you need to know , http://forums.mercedesclub.org.uk/sh...74&postcount=6
http://forums.mercedesclub.org.uk/at...4&d=1182019953
http://forums.mercedesclub.org.uk/at...5&d=1182023708
Here you go, all you need to know , http://forums.mercedesclub.org.uk/sh...74&postcount=6
http://forums.mercedesclub.org.uk/at...4&d=1182019953
http://forums.mercedesclub.org.uk/at...5&d=1182023708
Last edited by Air-Force-1; Dec 27, 2012 at 12:28 PM.
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,150
Likes: 533
Mercedes
There is large plastic waffle grille located at the top of the engine compartment by the wipers
it covers a reservoir and "funnel" hole that gets clogged with debris and water collects, this water can then leak into your passenger compartment and cause thousands in electrical Damage
Either get a very long thin screwdriver or similar object like a chopstick down through the plastic waffle grille , and clear the drain hole at the bottom of the plastic reservoir
All the water should dump out under your car
I simply broke the tabs off the waffle grille and used my finger to clear the drain hole- water was pouring in my passenger footwell causing Damage
it covers a reservoir and "funnel" hole that gets clogged with debris and water collects, this water can then leak into your passenger compartment and cause thousands in electrical Damage
Either get a very long thin screwdriver or similar object like a chopstick down through the plastic waffle grille , and clear the drain hole at the bottom of the plastic reservoir
All the water should dump out under your car
I simply broke the tabs off the waffle grille and used my finger to clear the drain hole- water was pouring in my passenger footwell causing Damage
Thread Starter
Newbie
Joined: Dec 2012
Posts: 4
Likes: 0
S500
Thanks
Thanks, I found the airbox drain and it was covered. Used a hanger to open the drain and ran plenty of water to flush the drain.
I believe I have been lucky in that is seems no water damage has been done.
I believe I have been lucky in that is seems no water damage has been done.
Member
Joined: Sep 2002
Posts: 235
Likes: 0
From: NY
2003 s500 sport
This is why this forum is great. You can always find some useful info. I haven't been here in a while but just faced the same problem on my 2003 S500. I initially noticed a damp scent and traced it to wet passenger side floor carpet. It happened after rain, then it dried out and I couldn't figure out where the water came from. Then yesterday took it to car wash and to my horror I had a small water fall in the passenger side foot well. Water eventually drained out, I pulled the carpet off a little and removed the styro foam wall but nothing can be really seen there. No specific damage altough I noticed that the heater is not really blowing very hot anymore. AC still cools. No other electrical issues yet.
When using the wire to clear the air intake did you visibly see some blockage? Just looking down into the air box I don't see any blockage or leaves but the water was sitting there last night until it drained.
When using the wire to clear the air intake did you visibly see some blockage? Just looking down into the air box I don't see any blockage or leaves but the water was sitting there last night until it drained.
Member
Joined: Sep 2002
Posts: 235
Likes: 0
From: NY
2003 s500 sport
found much more info here. https://mbworld.org/forums/s-class-w...ins-clean.html
hope this will not turn into more problems.
hope this will not turn into more problems.
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MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,150
Likes: 533
Mercedes
This is why this forum is great. You can always find some useful info. I haven't been here in a while but just faced the same problem on my 2003 S500. I initially noticed a damp scent and traced it to wet passenger side floor carpet. It happened after rain, then it dried out and I couldn't figure out where the water came from. Then yesterday took it to car wash and to my horror I had a small water fall in the passenger side foot well. Water eventually drained out, I pulled the carpet off a little and removed the styro foam wall but nothing can be really seen there. No specific damage altough I noticed that the heater is not really blowing very hot anymore. AC still cools. No other electrical issues yet.
When using the wire to clear the air intake did you visibly see some blockage? Just looking down into the air box I don't see any blockage or leaves but the water was sitting there last night until it drained.
When using the wire to clear the air intake did you visibly see some blockage? Just looking down into the air box I don't see any blockage or leaves but the water was sitting there last night until it drained.
that water WILL come into your passenger compartment and cause thousands in damage
Either remove the waffle grille carefully or just break off like I did and stick your finger in there to clear the drain hole
Like you, my heater is now damaged. Still deciding whether to file a comprehensive insurance claim
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Member
Joined: Nov 2010
Posts: 76
Likes: 1
2004 S600 (V220.176)
Clear right hand side o
After clearing the dirt out of the hole on plastic "bowl" the left hand side I discovered a stash of leaves and dirt on the right hand side. They were cunningly hidden and not obvious at all.
Maybe I just did not read this thread properly and maybe it was posted before. Anyway, please check there too. I enclose 2 pictures.
1. The overview so you can find the close-up
2. Close-up with the plastic flap lifted - showing the rubbish inside
Maybe I just did not read this thread properly and maybe it was posted before. Anyway, please check there too. I enclose 2 pictures.
1. The overview so you can find the close-up
2. Close-up with the plastic flap lifted - showing the rubbish inside
Last edited by Jerry-; Feb 22, 2013 at 09:12 AM. Reason: cannot see my attachments
