Question about 1991 Mercedes-Benz 420

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About fixing sun roof systems in cars

HAI I am savan kumar persuing my final year b.tech in mechanical engineering and I would like to have your help in my project which is about the design of sun rooof system and applying it mechanically.Can u please help me how can we fix sun roof systems in cars or trucks .It will help me a lot.can u suggest me any sites or can u provide any help in givinf information regardingh it

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Yes, go to Autozone.com and register yourself. Dont worry its free. Click on manage my vehicles and punch in your car along with model and year then click repair info. go through the process and it will give you txt. and pics.you can print it out. Good luck!

Posted on Jul 15, 2010

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1 Answer

1997 LandRover Discovery sun roofs will not open. Both motors run but will not engage.


It is probable that the linkages between the motor and its actuating mechanism and the roof panel are detached. If you push the retract button as far as it will go and then push the roof panel back you should be able to reconnect the actuator mechanism and the roof panel. Had the same problem on an old renault , both wheels had become detached, reconnected them ensuring the roof panel was square, i.e. in the same position on both sides, then reattach. I was able to push steel panel pins in to the wheels and that secured it for years.

Sep 13, 2015 | Cars & Trucks

1 Answer

When driving the sun roof lifts up and leaks air


It might be a problem within the roof mechanism. I think you should consult the professional of automobile to fix this problem and yes if you ever face the roof leaks problem then check the
Liquid EPDM Rubber to fix the leaks will be best help for you.

Feb 22, 2014 | 2005 Chevrolet Impala SS

1 Answer

Problemas con las luces cortas y el sun roof no funcionan


english please.
google says
The short traceras lights and sun roof do not work like this can resolber fabor if anyone can help
google fails. and me worse.

sun roof.:
blown fuse
bad wiring or switch to roof
or jammed roof mechanism.
or bad motor.

get the FSM on car, read the sections on each failure/
the tests are there.

Dec 05, 2013 | 1995 Toyota Camry

1 Answer

Sun roof fuze or computer chip


What are you asking in some detail?

I would suspect any sun roof issue was mechanical
& electrical & not computer related or even part of
any module back in 1999

Your answer to electrical system functions is looking
at a wiring diagram

Jan 26, 2013 | 1999 Saturn SC

1 Answer

Inalfa sun roof installed 3-29-04 in a Cad CTS 2004--will slide open but will not close all the way--any ideas on what to check?


may have slipped on the track mechanism and needs adjusted custom car shop may help with this..good luck..

Jan 19, 2013 | Cars & Trucks

1 Answer

SUNROOF ISSUE HELP!!!


Fixing sun roof problems is a nightmare even with the manuals and a trained tech doing the work, you will need the dealer to repair this.

Sep 20, 2012 | 1999 Lexus Gs 300

1 Answer

Chevrolet 2004 Tahoe Sun Roof Problem


I have built, repaired and installed sunroofs for 20 years. Its hard to tell what problem is, so many variations for motors with relays, cams, programed circuit boards. To get the roof closed you can drop motor usually 3 screws then pull glass forward as far as you can, then from inside of truck you will have to take a screw driver and finish sliding cable forward somehow. When sliding by hand watch on the inside to see what parts are moving so you can finish sliding forward. Hope this helps.

Mar 21, 2010 | 2004 Chevrolet Tahoe

1 Answer

Sun roof not operating


I have built oem sunroofs for 20 years and if it was jerking to close you may have something in the track interfearing with the closing, but more than likely there is something broke. There is alot of plastic parts. No over-ride on an oem roof. The only obstacle in a motor replacement is make sure your lifter arms (the parts that the glass attaches to) are in the closed positon. This is called timing. You can help the motor along with a light pull or push to take some strain of the motor.

Mar 18, 2010 | 2004 Buick Rendezvous

4 Answers

Sun roof will nt close cant find the rite fuse


check fuse F1.401, 30 amp in central junction box (in truck). Check your owner manual for fuse information.
Headliner must be removed to access motor.



Visual Inspection Chart Mechanical Electrical
  • Roof opening panel
  • Roof opening panel frame
  • Roof opening panel drain hoses
  • Roof opening panel lifter assemblies
  • Roof opening panel water trough
  • Roof opening panel air deflector assembly
  • Roof opening panel seal
  • Roof opening panel shield
  • Battery junction box (BJB) fuse
  • Circuitry
  • Accessory delay relay
  • Roof opening panel switch


  • The roof opening panel does not open or close
  • Roof opening panel adjustment.
  • Battery junction box (BJB) fuse.
  • Circuitry.
  • Roof opening panel switch.
  • Roof opening panel motor assembly.
  • Roof opening panel lifter assemblies.


  • The roof opening panel does not open or close — one direction only
  • Circuitry.
  • Roof opening panel switch.
  • Roof opening panel motor assembly.



Apr 10, 2009 | 2003 Lincoln Navigator

2 Answers

Sunroof will not close


I had same problem but under the interior light there is a manuel nut to shut the sun roof by hand

Aug 05, 2008 | 2002 Land Rover Freelander

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