02 ml 320 driver side water leak
Ouch!!!! Is that Jamaican dollars?? So, what is the $1,300.00 problem?
Trending Topics
The Best of Mercedes & AMG
A wiper grommit is the most unlikely thing I have ever heard of, what forum did you find that on??
Take a water hose at home (put duct tape around the hose end so you don't scratch your paint!) and with the sunroof and windows closed let the water run over certain areas. If from the other side of the car you can look in and see the water dripping INSIDE instead of out the appropriate drain underneath...that might be a clue in to where the leak is coming from.
Just because the part of the drain you can see might not be clogged, doesn't mean the drain tube didn't come off the sunroof bucket. Or the whole bucket could be leaking. Or the windshield could be leaking. Or the sunroof drain tube could be leaking at the bottom end of the tube where it exits the vehicle through the body, that end of the hose could have come off. There is not just one area that Always leaks.
That's the money issue, mostly labor. A lot of disassembly and water testing is involved in finding the problem before it can be fixed.

GOOD LUCK
The water is actually coming in through the dash. It only leaks when it rains. It is leaking out of one of the screw holes in the bottom of the dash into the drives side footwell. Does that ring a bell with anyone?
I was going to attempt diagnosis myself. I haven't taken the dash off yet, but I presume there are electrics in the area and wondered if it should even be driven at the moment as we are experiencing bad weather. Can anyone advise?
Last edited by ML320-99; Jun 26, 2007 at 12:04 PM.
The drain tubes from the sun roof run down inside each front
piller.
They are rubber and about 1/2" round.
At the bottom they are fitted into rubber grummets that drain into the wheel well.
After time these rubber drain tubes shrink and retact and
pull out of the grommets.
If you remove the pannel under the dash in the foot well eaither side of the driver and passenger feet, and look up you can see the rubber grommet going through the metal through to the pannel.
These do get blocked with mud and muck.
You can pull these gromets out and clean them and push them back in.
But also and in my case both drain tubes have pulled up and out of the grommets.
So when it rained the floor filled up with water.
One side I was able to pull down and fitt back into the grommet
and secure with a cable tie.
The other side near the fan blower LH Side for me as
I am in Australia and Vehical is a RH drive.
This side was to tight so I used some heat srink.
I shrank one end of a piece of a small length (1&1/2")of heat shirk
Fiited this into the gromet and the unshrunk end over the
Drain tube making a funnel effect.
Then I used a hair dryer to shrink that on as well.
I also belive this problem cases a partial electrical problem as moisture gets into the electrical pannel on the RH side in my vehical.
All fixed
David
Australia
they used a tie wrap the second time so it would ensure the drain tube would no longer pop off
There is a hose attached to the hole by the sunroof that is probably Off from it. That hose runs down along the side panel between the windshield and the passengers window, removed it and you will see it be careful with the Air Bag in that panel, but the first thing is to do is to inspect the place where this goes out to, and you have to disassemble the panels on the side and under the dash board next to the door and make sure is secured in the hole going out, and if it is then you need to blow air in the hole by the sunroof, after put some water and if that fixed it then you are done.
My ML500 was leaking because the hose came off from the side under the glove compartment. hope this ill help you or if you live in the Los Angeles area i can tell you where to go get it fix for few $$ same person ho fixed my I just to carry a bucket all the time.
There is a hose attached to the hole by the sunroof that is probably Off from it. That hose runs down along the side panel between the windshield and the passengers window, removed it and you will see it be careful with the Air Bag in that panel, but the first thing is to do is to inspect the place where this goes out to, and you have to disassemble the panels on the side and under the dash board next to the door and make sure is secured in the hole going out, and if it is then you need to blow air in the hole by the sunroof, after put some water and if that fixed it then you are done.
My ML500 was leaking because the hose came off from the side under the glove compartment. hope this ill help you or if you live in the Los Angeles area i can tell you where to go get it fix for few $$ same person ho fixed my I just to carry a bucket all the time.
There is a hose attached to the hole by the sunroof that is probably Off from it. That hose runs down along the side panel between the windshield and the passengers window, removed it and you will see it be careful with the Air Bag in that panel, but the first thing is to do is to inspect the place where this goes out to, and you have to disassemble the panels on the side and under the dash board next to the door and make sure is secured in the hole going out, and if it is then you need to blow air in the hole by the sunroof, after put some water and if that fixed it then you are done.
My ML500 was leaking because the hose came off from the side under the glove compartment. hope this ill help you or if you live in the Los Angeles area i can tell you where to go get it fix for few $$ same person ho fixed my I just to carry a bucket all the time
Best Regards,
ShadyMBenz
2003 ML350
Last edited by shadyMBenz; Jan 15, 2012 at 04:23 PM.
I had the same exact problem with my sunroof. There is debris that have accumulated in the front drain tubes. I have to occasionally clear the drain valves/nipples at the bottom of the car, as described by messages in this thread.
What happens is that the tray around the top will get filled with water, due to the clogged tubes. Some will drain through a non-clogged tube in the back. The rest will overflow the tray and end up inside your vehicle.

Additionally, I have had to use a wire (thinner than hangers) to carefully snake it down each of the tubes to push out debris. If you open your sunroof, you'll see the drainhole in each front corner.
Good luck!
What happens is that the tray around the top will get filled with water, due to the clogged tubes. Some will drain through a non-clogged tube in the back. The rest will overflow the tray and end up inside your vehicle.

Additionally, I have had to use a wire (thinner than hangers) to carefully snake it down each of the tubes to push out debris. If you open your sunroof, you'll see the drainhole in each front corner.
Good luck!
2. Starting from the top of the trim work your finger behind the trim and pull in the direction of the photo.
3. Working with a flash light, pull away slightly the corner of the headliner and look up and locate the end of the drain tube and see if it is disconnected from the attaching nipple.Remove the sun visor on that side to make insection easier.
4. If the tube is not detached from the nipple then the tube is clogged with debris and must be cleared.
5. Open the sunroof and go to the corner that is clogged and with a soda bottle full of water, pour water into the track and see if it backs up, hence not draining.
6. If so, buy a flexible plastic cable similar to a weed whacker (do not use a coat hanger or metal cable) and insert it through the opening to clear the tube. Withdraw the cable and pour water again and repeat as necessary until you see the water drain to the outside of the truck where the fender and door meet.
Last edited by Maj. Dundee; Aug 12, 2012 at 05:41 AM.
2. Starting from the top of the trim work your finger behind the trim and pull in the direction of the photo.
3. Working with a flash light, pull away slightly the corner of the headliner and look up and locate the end of the drain tube and see if it is disconnected from the attaching nipple.Remove the sun visor on that side to make insection easier.
4. If the tube is not detached from the nipple then the tube is clogged with debris and must be cleared.
5. Open the sunroof and go to the corner that is clogged and with a soda bottle full of water, pour water into the track and see if it backs up, hence not draining.
6. If so, buy a flexible plastic cable similar to a weed whacker (do not use a coat hanger or metal cable) and insert it through the opening to clear the tube. Withdraw the cable and pour water again and repeat as necessary until you see the water drain to the outside of the truck where the fender and door meet.
I will try it tomorrow and let you know how it goes, I cant begin to tell you how grateful I am, thank you so much!!!


