2010 350 AC evaporator drain tube location?
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2010 ML 350 Bluetec 4MATIC
2010 350 AC evaporator drain tube location?
Hey guys!
New here, trying to deal with some issues on my 2010 ML 350 Bluetec. One is the apparently common smelly AC situation. I've got some evaporator cleaner that needs to be injected into the air box and am not sure exactly where the drain tube comes down under the car, anyone have any pictures? I've looked under the car and on the net but can't find it. I'm also not seeing and water drips which doesn't help.
New here, trying to deal with some issues on my 2010 ML 350 Bluetec. One is the apparently common smelly AC situation. I've got some evaporator cleaner that needs to be injected into the air box and am not sure exactly where the drain tube comes down under the car, anyone have any pictures? I've looked under the car and on the net but can't find it. I'm also not seeing and water drips which doesn't help.
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2002 ML 320 & 2006 ML500
Everyone forgets that all vehicles now have Charcoal Cabin Air Filters that should be changed every two years. Purchase them first and then replace them. Make sure you vacuum out all debris.
Last edited by Maj. Dundee; Jul 3, 2018 at 10:19 PM.
MBWorld Fanatic!
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2002 ML 320 & 2006 ML500
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Thread Starter
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2010 ML 350 Bluetec 4MATIC
Thanks for that, but im still trying to figure out how to access that drain from under the car. Seems like its behind a heat shield or something.
Is it easy to access the side of the housing from inside the car? maybe i can drill a small port and then use a removable plug it for easy cleaning in the future.
Is it easy to access the side of the housing from inside the car? maybe i can drill a small port and then use a removable plug it for easy cleaning in the future.
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Thanks for that, but im still trying to figure out how to access that drain from under the car. Seems like its behind a heat shield or something.
Is it easy to access the side of the housing from inside the car? maybe i can drill a small port and then use a removable plug it for easy cleaning in the future.
Is it easy to access the side of the housing from inside the car? maybe i can drill a small port and then use a removable plug it for easy cleaning in the future.
Thread Starter
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2010 ML 350 Bluetec 4MATIC
I'm sure replacing the filters will help and I will do that. I also want to get the evaporator coil cleaned and be sure the drain tube is clear as well. I like to be thorough, to ensure I do all I can to to solve an issue. I see no good reason not to try and clean it if it is indeed possible to access.
Thanks
Thanks
Thread Starter
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2010 ML 350 Bluetec 4MATIC
Maj.
Not sure why you are continuing to comment on this thread if you have no useful info, the filters are not the point. I know the car has filters, I have looked at them, I know they need to be changed every so often, I know that it may help or even eliminate the current odor. I am trying to gather info about the drain tube from users that may already know where it is and the best way of accessing it so that I can do the same with less effort. I'm generally pretty busy, so the more relevant info I can find ahead of time the better.
The point is to check the drain tube for any obstructions, run a tube up inside the evap box and spray foaming cleaner in there if it all possible. The filters may very well be causing an odor but changing them won't clean the evaporator coil and that is what I would also like to accomplish.
Also, you may want to adjust your writing style, it is pretty condescending and may be portraying you as someone that you are not.
Not sure why you are continuing to comment on this thread if you have no useful info, the filters are not the point. I know the car has filters, I have looked at them, I know they need to be changed every so often, I know that it may help or even eliminate the current odor. I am trying to gather info about the drain tube from users that may already know where it is and the best way of accessing it so that I can do the same with less effort. I'm generally pretty busy, so the more relevant info I can find ahead of time the better.
The point is to check the drain tube for any obstructions, run a tube up inside the evap box and spray foaming cleaner in there if it all possible. The filters may very well be causing an odor but changing them won't clean the evaporator coil and that is what I would also like to accomplish.
Also, you may want to adjust your writing style, it is pretty condescending and may be portraying you as someone that you are not.
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2003 CL 600
The cleaning process is done from the interior, not from the drain tubes, according to MB. We remove the blower motor and use that opening to access the evaporator to spray cleaner onto it.
Thread Starter
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2010 ML 350 Bluetec 4MATIC
I actually found those lines a couple of months ago while I had the console out for other work. I have a borescope now, so i'll take a look in there and see what it looks like, then maybe shoot some cleaner foam directly in from those ports. Spraying it in from the fan ducting only works for maybe a couple of weeks, so I don't think the foam is getting to the heart of the issue.
Thanks for the reply!
Thanks for the reply!
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2011 ML350 4MATIC_1994 E320 Coupe
Were you able to solve the odor issue? I have the same problem, at startup cabin smells horrible for a few seconds then everything goes away.
i sprayed foam into the coils after removing blower motor but it did not help, I guess the liquid did not get to problem areas. Also, drain underneath seems covered with heat shields and other plastics. Any help would be much appreciated.
Edit
i sprayed foam into the coils after removing blower motor but it did not help, I guess the liquid did not get to problem areas. Also, drain underneath seems covered with heat shields and other plastics. Any help would be much appreciated.
Edit
Thread Starter
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2010 ML 350 Bluetec 4MATIC
I have yet to spray into those tube holes directly, I'll probably order some more cleaner soon and do it though since AC season is here and I can smell it already. I scoped into the core from the fan and it looked very clean, I will scope the drain tube holes when i pull the console for another cleaning and see what i find in there. So far my spraying efforts from the fan duct side have worked, but only for a few weeks at most. The best access to the drain tubes is under the center console. Removal is not that bad, just a bit of time to unbolt some things.
