Sunroof stuck

1976-1985: 230T, 230E, 230TE, 230CE, 280E, 280TE, 280CE, 240D, 300D, 300CD, 300TD,
Post Reply
mathuisella
560 SEL
Posts: 596
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Sunroof stuck

Post by mathuisella » Sat 01 Dec, 2018 1:18 pm

So, with my w123 i'm up to the sunroof in regards to repair, I would post this in the coupe thread, but i feel others may have this exact problem or close to it, so it may be easier to find if it's in it's own thread.

the car
1985
w123
280ce ( with diesel + manual transmission conversion)

Sunroof is stuck in the closed position

what i have done so far

1. checked fuses, all good
2. checked switch on dash, all good
3. checked motor gets power when switch is in either position > yep, good there
4. checked fibre gear inside of motor > was in okay condition, bought new gear and replaced any way.


Motor tried to close and open the sunroof, but it seems something is physically wrong with the sunroof as in something is blocking the sunroof sliding on the tracks. The cable doesn't seem to be broken. Hmmm

I've even taken the motor off, grabbed the cable and tried to physically pull it through which should've worked. :/

I think i need to remove the liner from inside the car and see if i can see any obstruction along the tracks, but unsure how to do so without messing it up

User avatar
John Green
OZBENZ Admin
Posts: 6671
Joined: Mon 20 Jun, 2005 3:49 am
Model you own: w112
Region: Australian Capital Territory
Location: Canberra-center of the known universe
Contact:

Re: Sunroof stuck

Post by John Green » Sat 01 Dec, 2018 5:34 pm

Unfortunately the procedure to remove the internal cover relies on the sunroof actually working....

- Open roof with either the motor or using the hand crank approx 1/2 way
- Gently pry the cover away from the roof on the front edge, there should be around 4 "snap" fasteners holding it on
- Once disconnected slide the cover forward to the position it would normally be in when closed
- Then fully open the roof
- You should then be able to remove the cover quite easily but pulling it forward and upwards away from the roof.
Inaugural OZBENZ national meet this September, all welcome to attend. https://ozbenz.net/viewtopic.php?f=46&t=25165

M.B Spares & Service 14-16 Lyell St, Fyshwick ACT. Ph 02 6239 1099

http://mbspares.com.au - Supporting Australia's Mercedes-Benz Enthusiasts.

mathuisella
560 SEL
Posts: 596
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Sunroof stuck

Post by mathuisella » Sat 01 Dec, 2018 8:29 pm

Sadly the hand crank or motor method isn't working.

i put a 30cm long spanner onto the 6mm turn rod and yeah, nothing, even with so much strength applied i feel like i'm going to break something.
47301052_462410254285782_702185465943425024_n - Copy.jpg
You do not have the required permissions to view the files attached to this post.

mathuisella
560 SEL
Posts: 596
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Sunroof stuck

Post by mathuisella » Sun 02 Dec, 2018 11:09 pm

getting it open a smidge and taking a peak

20181202_184742 - Copy.jpg

got the inner liner clips off




20181202_190406 - Copy.jpg

removing the cross member that connects the roof panel to the wire mechanism
20181202_190647 - Copy.jpg
hmm, not looking good
20181202_190856 - Copy.jpg

got it back together and well lubricated, but still no go, looks like i'm up for a new cable, or a conversion to manual sunroof.
20181202_194212 - Copy.jpg
You do not have the required permissions to view the files attached to this post.

tsharkey
C 111
Posts: 961
Joined: Sat 25 Apr, 2009 9:32 am
Model you own: w123
Location: Melbourne, Vic

Re: Sunroof stuck

Post by tsharkey » Mon 03 Dec, 2018 8:13 am

With the
mathuisella wrote:
Sun 02 Dec, 2018 11:09 pm
removing the cross member that connects the roof panel to the wire mechanism
Does the winding mechanism work then (Moving the cross member back and forth) ? Or is it stuck. The cable is your answer.
mathuisella wrote:
Sun 02 Dec, 2018 11:09 pm
getting it open a smidge and taking a peak
Can you move the sunroof down and slide it back and forth ?

Coupe sunroofs are a different size to wagons (which had the manual roof). I have a removed wagon cassette with sunroof still in which I can photo parts of if you want for reference, but I suspect it will be easier to get a second hand / new cable.
W123 1981 300TD - Family Kid mover
W202 1998 C250D Factory OM605A Turbo - Partner's daily driver
W123 1982 300CD Retro fitted OM617A Turbo - Mine
W123 1984 300TD English 5 Speed Manual
W123 1982 300TD Factory OM617A Turbo (Hans) - Project
W123 1982 300D - OM617 NA (Hektor) - Son's
W123 1985 230TE - Brother's
W123 1985 300D - Sister in Law's
1962 S-Series Valiant (Tho Daimler & Chrysler divorced, still part of the extended family)

Past benzes
W114 1969 250CE - PO put in an M110 transplant and nearly sent me around the bend
W123 1981 300TD - "Matilda" - RIP hit front side & rear but left my brother + niece A-OK

Current Projects
Coupe restoration, Turbo Wagon freshen up

mathuisella
560 SEL
Posts: 596
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Sunroof stuck

Post by mathuisella » Mon 03 Dec, 2018 9:58 am

with the cross member and cable assembly disconnected the sunroof itself slides back and forward reasonably well after I lubricated the tracks and moving parts.

The cable assembly itself was a bastard to get it into place, the double kink in the cable and outer sheath of plastic rings all warped and deformed, i had to cut away at them until things fit.

So i'm leaning towards cable as i cannot even now get the motor to electrically or manually by hand, wind the sunroof open or closed, even now after lubricating all moving parts and sliding surfaces and set the cable up how it should be.

User avatar
Chai
OZBENZ moderator
Posts: 658
Joined: Fri 04 Nov, 2005 11:49 am
Model you own: w107
Location: Melbourne

Re: Sunroof stuck

Post by Chai » Sat 08 Dec, 2018 5:42 pm

You mentioned having to cut through the plastic rings (spacer washers). Did you re-install the cable with these cut rings?
If so, it's possible they are snagging inside the cable tube.

When I removed the sunroof cable to lube it many years ago, I discarded some of these plastic rings (I did not have to cut them) because I could not draw the cable back through to the motor with the full complement of rings - they jammed. Removing some of these rings gave the cable some play inside the tube.
Can assuredly claim that there has not been any problem, noise or issues with the sunroof operation since then.

Recall laying cardboard over the bonnet, windscreen and roof to rest the pulled out cable.
Pushed a long length of garden wire (thickness like drycleaner clothes hanger wire) through the tube from the motor side and connected that wire to the sunroof cable. Used an electric drill on the garden wire to slowly spin the cable while pulling on that wire, drawing the sunroof cable into the tube at the same time.
Was very happy when the cable finally appeared out of the tube at the motor side.
Chai
1974 450SLC

mathuisella
560 SEL
Posts: 596
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Sunroof stuck

Post by mathuisella » Tue 11 Dec, 2018 12:25 am

Thank you.

I cut away the white tubes/rings and took them off, i didn't re-use them. But still it's extremely difficult to push/pull the cable.

Perhaps taking the whole cable out and lubricating it and the inner part of the tube is what's needed ? :)

Any recommendations on the lubrication ?

Post Reply

Return to “W123”