[W126 Coupe] Leaking Front end!

[Dick Spellman]

Hi Brad:

MBCoupes archives have a number of postings on repair to the sunroof 
starting with the removal of the interior sunroof panel.  The manual 
offers specific steps but, this posting from the archives may help get 
you started.  <http://db.mercedes.cx/sec/200110/19/0014.html>

If the water seems more pronounced on the passenger side, then there is 
the very remote possibility that you have some rot or serious 
obstruction to the (3) drains under the wiper transmission area.  This 
is also the location for fresh air intake on the passenger side.  There 
is a small metal dam that allows air in and water to pass by and exit to 
either windscreen corner drain.  And there is also a center drain that 
I've never seen plugged.  The wipers, and wiper tray need to be removed 
to inspect and clear this area.  Before explaining all of this added 
work, sunroof first then report back.

Good luck,

Dick

Brad Cross wrote:

> Hey guys, wonder if I can pick your brains.  Just bought a Merc 

> 560SEC, lovely car, pretty good condition but definitely a fixer-upper!

>

> Appart from the MOT test and service that I'm about to put her 

> through, the main problem is water: in that there seems to be a lot of 

> it getting into the car.  I originally thought it was that the 

> previous owner had left windows open (the damp was the reason the car 

> was cheap), but when I drove it in the wet, it got much worse.  I 

> thought it must be coming in through the floor, and there must be a 

> hole in the floorpan, but when I jacked it up the whole undertray is 

> completely intact (and in immaculate condition).

>

> I am left thinking maybe it is the grill at the bottom of the 

> windscreen and it's coming in through the back of the dash?

>

> Anyway, any ideas on what it is/what is needed to fix it/scale of the 

> problem/cost to fix would be GREATLY appreciatied.  I spent last 

> weekend seriously scrubbing carpets, cleaning the interior of the car 

> thoroughly and, with the exception of the headlining (the re-lining of 

> which is this weekends task) the inside looks like new, I just need to 

> fix the leak!

>

> Oh, and the slide roof won't slide, just tilts, and the control 

> doesn't seem to want to make the roof slide.  Normal?

>

> Info greatly appreciated!

>

> Brad (London)

>

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