Question about 1991 Mercedes-Benz 190

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My sunroof is off track

How do I dis assemble the sunroof in order to repaiur it?

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It seems like a big task but you have to drop the headliner. Go to benzworld.org and peachparts.com for some better how to guides and resources.

Posted on May 29, 2010

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Posted on Jan 02, 2017

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Wifes sunroof is open and will not close. Checked fuse it has pwr, removed switch it does not have power ... a ground problem at the sunroof motor...where is that?


First off this is controlled by a module (computer) The switch would only have five volts . 5volt reference voltage from the control module . Not knowing how to test the electrical circuit's for this could be expensive . Short out the module or 5 volt ref. voltage circuit inside the module.
Your best bet , take it to a qualified repair shop . Look at a wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on body & accessories ,then under subsystem click sun roof . Then click search button then the blue link . Now tell me you under stand what's happening here .

Power Sunroof System Components
The power sunroof system consists of the following components:
• Sunroof control module
• Sunroof Opening Position Switch (SOPS)
• Sunroof switch
• Sunroof motor/actuator
• Sunroof glass (spoiler type, with glass sliding above roof)
• Sunshade
• Rail and track assembly upon which the sunroof glass rides
• Power supply for the sunroof control module: SUNROOF 20 A fuse
• Ground from G302

Sunroof Opening Position Switch (SOPS)
The SOPS tracks the position of the glass through 2 limit switches:
• Soft stop limit
• Vent limit
The sunroof control module monitors the limit switches and based on the inputs determines the position of the sunroof glass. As a limit switch closes, the 5 volt reference will be shorted to the sunroof limit switch low reference circuit, pulling down the 5 volt reference to 0 volts.
The sunroof control module understands the position of the sunroof glass based on the different input combinations through the sunroof limit switch soft stop signal and sunroof limit switch open vent signal circuits.

Power Sunroof Does Not Close
Perform the Initialization/Teach Process any time a new sunroof motor actuator is installed in the vehicle or any time an existing sunroof motor actuator is removed from the vehicle. Refer to Sunroof Motor/Actuator Initialization/Teach Process .

Oct 23, 2017 | Pontiac Cars & Trucks

1 Answer

Does anyone have a diagram or exploded view of a 2000-2003 Regal GS sunroof assembly?


order a new frame assembly , this type of component isn't made to be repaired , just like most components on moder cars

Jul 20, 2014 | Buick Regal Cars & Trucks

1 Answer

2000 Tahoe sunroof won't fully close


Is there any debris in the track of the window especially towards the front. Thew clicking sound you are hearing may be worn gears in the drivve assembly of the window/power roof mechanism. Is there a limit switch for the sunroof? This may be bad also. Check the easy stuff first and get back with me.

Feb 01, 2013 | 1999 Chevrolet Tahoe

2 Answers

Sun roof does not work. how do you fix it. ?


Hi,

  1. Open the fuse panel. Turn the knob on the fuse panel cover counterclockwise or push in on the release tabs on the fuse panel cover (depending on the year of your Toyota), and pull down on the fuse panel cover.
  2. Pull the fuse for the sunroof out of the fuse panel using the fuse pullers in the fuse panel. Use the diagram on the underside of the fuse panel cover if you are having trouble locating the fuse for the sunroof.
  3. Check the metal strip in the middle of the fuse. The strip should not be burned or damaged. If it is, replace it with a fuse of the same amperage.
  4. Check the recessed track of your sunroof. Clear away any debris that may be stuck in the sunroof's track. Use engine degreaser and a wire brush to clean the track of dirt. Then, wipe the track down with clean paper towels.
  5. Apply hard grease to the sunroof wheels and track so that the sunroof can move easily once again.
Best regards

Oct 29, 2010 | 1990 Toyota Celica

1 Answer

I have a 1988 Cadillac Fleetwood D'elegance with a faulty sunroof


Sounds like you have a problem with the drive motor gear engaging with the track (jammed) - often caused by misalignment or debris/corrosion on the track. Getting at the sunroof mechanical assembly is not easy - you will need to remove the headliner to diagnose the problem and repair it. A service manual will be helpful showing all the components and procedures for repair (you can also try Alldatadiy.com).

Oct 20, 2017 | 1988 Cadillac Fleetwood

1 Answer

Sun roof won't open, but i hear the motor turning


Check for any obstruction in the rail.

Also, can check this procedure to test your components...
Power Sunroof - REMOVAL & INSTALLATION (click over pic for zoom)

Motor
See Figure 1
  1. Remove the sunroof switch panel by pushing it to the side and disengaging the pawl, then pulling it downward.
b5908ae.jpg

Fig. 1: The sunroof switch panel is retained by a metal clip
  1. Remove the sunroof switch bracket.
  2. Unplug the sunroof motor wiring harness connectors.
  3. Remove the sunroof motor mounting screws.
Disassembly of the sunroof motor is not recommended.

To install:

  1. Lightly lubricate the drive gear with grease and install the sunroof motor to the sunroof assembly.
  2. Plug in the electrical harness connectors to the sunroof motor.
  3. Operate the sunroof to verify proper operation.
  4. Install the sunroof switch bracket and the sunroof switch panel.

Sunroof
See Figures 2 and 3

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Fig. 2: Exploded view of the sunroof assembly on 1993-94 vehicles

515e4a7.jpg

Fig. 3: Exploded view of the sunroof assembly on 1995-97 vehicles-1998 models similar
  1. Tilt up the sunroof lid.
  2. Remove the lid side trim.
  3. Remove the lid bolts and the lid assembly.
  4. Remove the rear drain mount screws and the drain.
  5. Remove the shade assembly holders from the sunroof frame.
  6. Remove the shade assembly.
  7. Remove the sunroof switch, interior accessories and headliner.
  8. Remove the switch bracket.
  9. Remove the motor assembly, spacer and clip.
  10. Remove the wind deflector mount holders from the sunroof frame.
  11. Remove the wind deflector.
  12. Disconnect the drain hose.
  13. Remove the sunroof brackets.
  14. Remove the sunroof frame assembly.
  15. Remove the link and wire assemblies.
To install:
  1. Tilt up the sunroof lid.
  2. Install the link and wire assemblies.
  3. Install the sunroof frame assembly.
  4. Install the sunroof brackets.
  5. Connect the drain hose.
  6. Install the wind deflector.
  7. Install the wind deflector mount holders on the sunroof frame.
  8. Install the motor assembly, spacer and clip.
  9. Install the switch bracket.
  10. Install the sunroof switch, interior accessories and headliner.
  11. Install the shade assembly.
  12. Install the shade assembly holders on the sunroof frame.
  13. Install the rear drain mount screws and the drain.
  14. Install the lid bolts and the lid assembly.
  15. Install the lid side trim.

Hope helps (remember rated this help).

Jun 03, 2010 | 1996 Nissan Maxima

1 Answer

The sunroof in my 99 bonneville is making a loud noise when i open or close it almost sounds like the motor may be going bad or gears are stripped and i know nothing about sunroofs can you help ?!?


The sunroof motor is located under the roof liner above the center of the rear seat. You will need to remove the headliner in order to access the motor and or track. Do you feel you're mechanically inclind to remove all electrical, sunvisors, side roof handles side trim etc. If not than repairing the motor or track maybe beyond your scope of work. If you are let us know and once done you can proceed to the next step.

Apr 12, 2010 | 1999 Pontiac Bonneville

1 Answer

New model 99 Jetta. Sunroof only tilting not sliding


When you turn switch to the slide back position, do you hear the motor running ? If yes, might have a blocked or bad track. This will require you to remove trim covers and glass to have access to the track. Once all parts removed, turn the switch to open as you look at the motor and track move.

Jun 17, 2017 | 1997 Volkswagen Jetta

1 Answer

Leaking back sunroof, order new rubber seal, how


Land Rover Part # RTC 6481. I have the same issue when mine pops out of track. This part is available in UK, but I don't n=know of a US supplier.

Dec 01, 2009 | 1995 Land Rover Discovery

1 Answer

1992 Volvo 940 Gl Sunroof Problem


to find out if it is off its track you can remove the cover between the rearview and the sunroof that is the motor/drive assembly. there is a slotted pin in this assemply that you turn with a screwdriver to move the sunroof manually if it wont move manually then you have a bigger issue. sometimes thie drive assembly screws get loose, i believe there are two screws that hold it up,when those are loose you will get a grinding sound when the gears skip. good luck.

Feb 25, 2009 | 1992 Volvo 940

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