Question about 1987 Mercedes-Benz 300-Class

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Sunroof will not lift up to be completely closed

Sunroof opens fine with switch but wont close with switch have to close manually and how do you get the back of it to lift up to be flush with roof of car

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  • chieftz Jan 04, 2009

    1987 Mercedes-Benz 420SEL has a problem w the roof closing completely.

    Does anyone have a diagram or how to remove the inner liner remove process. Photos will help.



    Thanks,



    chieftz@yahoo.com

  • Anonymous Mar 31, 2014

    ROOF Won't open says to close the partition but it is already closed what do I do?

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Something is keeping it from closing all the way? is the front of the roof up against the body? if so than the track is broken

Posted on Dec 17, 2008

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2 Answers

2006 Chevy Envoy Denali moonroof stuck open manually close


You mean GMC not Chevy ! Chevy doesn't make the Envoy . There is no way to manually close the sunroof !
Power Sunroof Inoperative
If voltage is not measured on the sunroof switch open signal or sunroof switch close signal circuits, the fault could be in the retained accessory power (RAP) supply voltage circuit, battery positive voltage circuit, or sunroof motor ground circuit. If the sunroof motor is not being powered, neither will the sunroof switch signal circuits.

2

Attempt to operate the sunroof through its full range of functions in order to verify that the power sunroof inoperative fault is present.
Does the power sunroof system operate normally?
--
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
YES - Go to Step 3

3
Is the sunroof in the fully closed position?
--
YES - Go to Step 4
NO - Go to Step 7

4
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch open signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof open?
--
YES - Go to Step 17
NO - Go to Step 5

5

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 13
NO - Go to Step 6

6

Measure the voltage from the sunroof switch open signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
YES - Go to Step 14
NO - Go to Step 10

7
  1. Disconnect the sunroof switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Connect a 3-amp fused jumper wire to the low reference circuit of the sunroof switch harness connector.
  4. Connect the other end of the 3-amp fused jumper wire to the sunroof switch close signal circuit of the sunroof switch harness connector, for 3 seconds.
Did the sunroof close?
--
YES - Go to Step 17
NO - Go to Step 8

8

  1. Disconnect the 3-amp fused jumper wire.
  2. Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to the low reference circuit of the sunroof switch harness connector.
Does the voltage measure near the specified value?
B+
YES - Go to Step 15
NO - Go to Step 9

9

Measure the voltage from the sunroof switch close signal circuit of the sunroof switch harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 14
Go to Step 10

10

  1. Disconnect the sunroof motor harness connector.
  2. Measure the voltage from the battery positive voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 11
Go to Step 19

11

Measure the voltage from the retained accessory power (RAP) supply voltage circuit of the sunroof motor harness connector to a good ground.
Does the voltage measure near the specified value?
B+
Go to Step 12
Go to Symptoms - Computer/Integrating Systems in Computer/Integrating Systems

12

  1. Turn OFF the ignition.
  2. Measure the resistance from the ground circuit of the sunroof motor harness connector to a good ground.
Does the resistance measure less than or equal to the specified value?
5 ohms
Go to Step 16
Go to Step 20

13

Test the sunroof switch close signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

14

Test the sunroof switch low reference circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

15

Test the sunroof switch open signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

16

Test the appropriate sunroof switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 18

17

Inspect for poor connections at the harness connector of the sunroof switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 21

18

Inspect for poor connections at the harness connectors of the sunroof motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 22

19

Repair the short to ground or open in the sunroof motor battery positive voltage circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

20

Repair the open in the sunroof motor ground circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--

21

Replace the sunroof switch. Refer to Sunroof Switch Replacement .
Did you complete the replacement?
--
Go to Step 23
--

22

Replace the sunroof motor. Refer to Control Module References in Computer/Integrating Systems.
Did you complete the replacement?
--
Go to Step 23
--

23

Operate the system in order to verify the repair.
Did you find and correct the condition?
--
System OK
Go to Step 2

Jul 31, 2016 | Cars & Trucks

1 Answer

How do you reset sunroof in a 2001 Monte Carlo with 3400 model I


check fuse and relay if good than possible motor ot track problem their should be a mechanical bypass that will let you close it if stuck open the following information is courtesy of monte carlo forum
To check the condition of your original sunroof guides:
  1. Gl*** in closed position.
  2. Locate & remove 3 torx bolts on each side of sunroof glass. Lift glass out of sunroof opening & set aside in a safe place.
  3. Locate "J" shaped cover plate at front of sunroof track assembly. Remove 2 torx bolts from each cover plate.
  4. Lift up bracket to remove.
  5. Inspect the plastic guides on each side. The sunroof cables attach to guides on front outer corner. Inspect this area closely for damage.
  6. Do not operate the sunroof with the J plates removed.
Troubleshooting:
If the sunroof guides are not broken & the glass is a uniform height along the rear edge your problem may be a stripped gear inside the motor. The motor has a manual override:
  1. Get access to the motor by removing the map light/switch console or lowering the front of the headliner.
  2. Insert a large standard screwdriver into the nylon bushing at the center of the motor hub. Push up & turn the screwdriver to manually move the sunroof glass. If the unit will fully open & close manually, you most likely only need a replacement motor.

If your sunroof is stuck in the open position follow these steps to get it closed:
  1. Remove the glass.
  2. Try to close the unit without the glass. Many times one side will still be operational and close correctly.
  3. Try to slide the inoperable lift arm forward. If it moves, slide it forward until it stops.
  4. You now need to slide the original plastic guide forward to lower the arm to the closed position. Using a standard screwdriver, push it forward. The lift arm should begin to lower.
  5. If the lift arm will still not fully lower, remove the J plate as explained above, sometimes the sunroof cable will need to be lifted up to allow the guide to fully slide forward.
  6. Reinstall glass.

May 21, 2016 | Cars & Trucks

2 Answers

Nissan altima sunroof wont close all the way. It closes, but the rear of the window doesnt lift to create the seal at the back of the window. Any suggestions?


hi,
With the car OFF and sunroof OPEN inspect all around the sunroof's frame. If nothing found that might be in the way (rocks, twigs, etc.), turn on the car CLOSE the sunroof and see if you can push it UP while closing to 'help it'. If it works, I'd just leave it closed 'til you can take it to the dealer/shop to fix it.

Jan 15, 2015 | 2005 Nissan Altima

1 Answer

How to reset sunroof on 1997 bmw 740il


By 'reset', you mean having it open/close with one push of the switch? If so, you will need to 'hold' the open side of the switch until the sunroof completely opens.....hold the switch for about fifteen seconds; then push close side of switch until sunroof closes.....hold the switch for about fifteen seconds-or until you hear a beep. This should 're-program' your sunroof.

Jan 05, 2015 | 1996 BMW 740i

1 Answer

2000 olsmobile alero sunroof stuck open


HAVE SAME PROBLEM ON MY ALERO , WOULD CLOSE TO VENT POSITION ALL OTHER FUNCTIONS WORKED FINE. TALKED TO A MECH. FRIEND AND FOUND A WAY TO CLOSE MANUALLY BUT YOU DO HAVE TO DROP FRONT LEFT CORNER OF HEADLINER.
THE MOTOR IS UNDER SUNVISOR AREA AND YOU'LL NEED AN ALLEN(SPELLING)SOCKET TO CLOSE ROOF

Oct 20, 2012 | 2001 Oldsmobile Alero

4 Answers

Electric sunroof stuck open can it be closed manually


THE ELECTRIC DRIVE SYSTEM FOR POWER SUNROOF IS NOT ADJUSTABLE.DONT REMOVE THE SUNROOF MOTOR UNLESS THE SUNROOF IS COMPLETELY CLOSED.OTHERWISE A NEW MOTOR WILL HAVE TO BE INSTALLED AND TIMED WITH A TOOL THAT COMES WITH THE NEW MOTOR.THE GLASS PANEL CAN BE ADJUSTED.OPEN THE INTERIOR SUNSHADE ALL THE WAY BACK AND OPERATE THE SUNROOF UNTIL FULLY CLOSED.THERE ARE THREE GLASS MOUNTING SCREWS ON EACH SIDE OF THE SUNROOF OPENING.INSIDE THE VECHICLE LOOSEN THE SCREWS SET THE FRONT EDGE OF THE GLASS TO BE JUST 1MM BELOW THE SURFACE OF THE ROOF.ADJUST THE GLASS AT THE REAR EDGE TO BE JUST ABOVE 1MM THE ROOF AT THE REAR TIGHTEN THE SCREWS.

May 23, 2010 | 2001 Pontiac Grand Am SE

1 Answer

03 Jeep Liberty Sport sunroof wont close.


03 Jeep Liberty sunroof wont close. I have 4 sunroof buttons; Open, Close, Vent and ASC. Open and Vent buttons are working fine. Close button is not responding. ASC button is flashing red and green but does nothing when pushed. I have no way to get it closed

May 08, 2010 | 2003 Jeep Liberty

1 Answer

2006 Escape Sunroof not opening/closing


This sunroof has broken cable ends and must be replaced. You may take a screwdriver and push the lift arms forward and up to close.

Jul 05, 2009 | 2006 Ford Escape

1 Answer

Manual close for sunroof


My Audi A4 has a manual crank spot under a flip cover just in front of the roof on the ceiling. If your roof is opening randomly, it may be just bent contacts for the switch (this is known on the A4). Remove the sunroof switch from the headliner, take the switch itself off the mount, and you'll see the contacts underneath. Bend them more vertical so they can contact the switch knob more easily, and try it out. This fixes the problem on the A4 and your Golf likely has a similar design.

Jul 29, 2008 | 2001 Volkswagen Golf

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