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W163 and General M Gremlin
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Discussion Starter #1
Hi fellas,

Ok, Ive read many of the forum threads on these leaks.
After the first rainfall this morning, I found water dripping on the driver's side, just above the emergency brake pedal onto the floor mats and floorboard.
The rubber mats caught most of the water and it was still dripping slowly down.
I went thru the process of removing the c-pillar cover (gave me an excuse to repair the loose fabric on the pillar cover with some fabric adhesive, unscrewed the sunvisor, and the hand grip thingy just above head level where the airbags are located, pulled down the rubber door seal; and then pulled down as much of the headliner I could on this side. There was the air bag and just behind this was the rubber drainage hose running along side of this and down along the pillar, all as descrbed in other similar related topic treads.

Ive run a small cup of water right into the drain hole in the sunroof on the driver's side and I could see where the water was coming through (just behind the airbag assembly) and onto the headliner and where it would run down on the pillar cover into the corner of the dashboard and then straight down below where the emergency brake is located. I was able to pull on the drain hose and physically check the end of the drain hose that would connect (I presume) to the male end of the drain plug on the sunroof part (hard plastic I presume).

I think it is just a friction type fitting of this rubber hose to the male end of the sunroof drain?
Does anyone have a clear photo of this connection of the rubber hose to the plastic male end of the sunroof fitting?

I can partially see the hose running along behind the airbag assembly.
I can also "feel" with my fingers how it would have to fit over this male end so that the water drains into the rubber hose, but I cant really see it very well due to the fact that I can only pull down the headliner about 3-4 inches down along the side and the airbag assembly is right in front of the drain hose connection to the sunroof. Ive tested by feel only how the hose would have to fit to connect onto and cover over the sunroof drain but I cant see it clearly.

I'm pretty sure I've got the rubber hose end fitted over the male end of the sunroof drain. But when I think Ive got it connected properly (by feel only) and I test the connection for any water leakage (by running some water directly into the drain hole again), I still get some water leaking (not alot) dripping onto the headliner in the area of the hose connection to the sunroof drain.

I also read that coating the inside of the drain hose where it connects to the sunroof drain hole (male end) might be helpful as a sealant if the water is leaking back out of the hose.

A photo of the area directly behind the airbag assembly where the hose and sunroof drain connection would be helpful or any other suggestions.
 

W163 and General M Gremlin
Joined
4,949 Posts
Discussion Starter #3
Thanks 43sqd, I had read thru this thread and saw that video before.
My dripping water issue was in front of the emergency brake pedal.

I think I got my problem solved.

Used a friends endoscope to get a better view of what I had done "feeling my way" thru the re-connecting of the hose to the sunroof drain. It was an very helpful being able to see what I was trying to repair.

I realized after getting the hose re-connected at the sunroof and testing the hose for drainage that there was some blockage in the line near the bottom. Yesterday, as I poured water into the sunroof drain (and it wasnt draining below) that I either had water draining back into the driver side compartment or it was clogged up. The water dripping from the sunroof connection area was the excess water filling up the drain hose and leaking backout thru the easy friction-fit of the drain hose on the sunroof connection.
I ended up running pvc tubing (4.3' to be exact) thru the sunroof drain hole and blowing my compressor air thru it. Problem solved - all the water from yesterday spewed out with some debris. :smile

I secured the sunroof drain hose onto the pillar so it wont move and closed her up. (but dang, broke the metal T-clip that holds the A pillar in place at the top)
 

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Registered
2002 ml55
Joined
485 Posts
Had to deal with this issue again today (thought I solved it twice...) ... this time I added a metal clamp

I took a pic, and adding it here to help others looking for a solution.

note: right door handle removed, right visor removed, right a-pillar removed, and right visor clip removed...to be able to reach in (semi-blindly) and attach rubber tubing onto the sunroof drain nozzle.

2662362
 

Registered
ML320 W163 2000 189 7 seater
Joined
71 Posts
Had to deal with this issue again today (thought I solved it twice...) ... this time I added a metal clamp

I took a pic, and adding it here to help others looking for a solution.

note: right door handle removed, right visor removed, right a-pillar removed, and right visor clip removed...to be able to reach in (semi-blindly) and attach rubber tubing onto the sunroof drain nozzle.

View attachment 2662362
I need to do this! I tried doing it years ago but I couldn't get the wire into the visor disconnected and get the headlining loose. I also lost the clip from the A pillar trim and it disappeared into the body column.
 

Registered
2002 ml55
Joined
485 Posts
I need to do this! I tried doing it years ago but I couldn't get the wire into the visor disconnected and get the headlining loose. I also lost the clip from the A pillar trim and it disappeared into the body column.
the connector for the visor sometimes is glued to the headliner...
also, it is a bit of a pain to disconnect...

added pics below :

Screen Shot 2020-11-22 at 1.16.25 AM.png

IMG_6012.jpg IMG_6009.jpg IMG_6001.jpg
 

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ML320 W163 2000 189 7 seater
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