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For information on the description and operation of the system, refer to the relevant section of the workshop manual. REFER to: Roof Opening Panel (501-17 Roof Opening Panel, Description and Operation).
Inspection and Verification
- Verify the customer concern.
- Visually inspect for obvious mechanical or electrical faults.
Visual Inspection Chart
| Mechanical | Electrical |
- Glass panel assembly
- Glass panel seal
- Frame assembly
- Sunblind
- Deflector
- Access panel
- Roof opening panel cables
- Drain tube(s)
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- Fuses
- Battery junction box (BJB) - link 11E
- BJB - link 15E
- Central junction box (CJB) - Fuse 20P
- Battery junction box (BJB)
- Central junction box (CJB)
- Wiring harness
- Loose or corroded connector(s)
- Roof opening panel motor and control module
- Roof opening panel switch
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- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
- Make sure that all DTCs are cleared following rectification
| Symptom | Possible causes | Action |
| Roof opening panel inoperative |
- Fuse(s) blown
- Circuit fault
- Switch fault
- Motor fault
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- Refer to the electrical guides
- Check the fuse(s) (see visual inspection)
- Check the roof opening panel circuits
- Check the switch and motor function
- For further diagnostic information GO to Pinpoint Test B.
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| Roof opening panel sticking/jamming |
- Debris in the channels/guides
- Cable(s) sticking/damaged
- Roof opening panel not correctly aligned
- Switch fault
- Motor fault
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- Check for general debris
- Inspect, clean and lubricate the cable(s) and guides
- Check the roof opening panel alignment REFER to: Roof Opening Panel Alignment (501-17 Roof Opening Panel, General Procedures).
- Refer to the electrical guides
- Check the switch and motor function
- For further diagnostic information GO to Pinpoint Test C.
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| Roof opening panel juddering |
- Debris in the channels/guides
- Cable(s) sticking/damaged
- Roof opening panel not correctly aligned
- Motor fault
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- Check for general debris
- Inspect, clean and lubricate the cable(s) and guides
- Check the roof opening panel alignment REFER to: Roof Opening Panel Alignment (501-17 Roof Opening Panel, General Procedures).
- Check the motor function
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| Water ingress from roof opening panel |
- Debris in the channels/guides
- Drain tube(s) blocked
- Damage to the glass panel seal
- Roof opening panel not correctly aligned
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- Check for general debris
- Check for blocked drain tube(s)
- Check the glass panel seal
- Check the roof opening panel alignment REFER to: Roof Opening Panel Alignment (501-17 Roof Opening Panel, General Procedures).
- For further diagnostic information GO to Pinpoint Test A.
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| Wind noise |
- Damage to the glass panel seal
- Cable(s) sticking/damaged
- Roof opening panel not correctly aligned
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- Check the glass panel seal
- Inspect, clean and lubricate the cable(s) and guides
- Check the roof opening panel alignment REFER to: Roof Opening Panel Alignment (501-17 Roof Opening Panel, General Procedures).
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Water Leak Diagnostic Procedure
Introduction
This procedure has been developed to aid diagnosis and rectification of water ingress on vehicles with the aim of providing a right first time fix.
The procedure provides suggested points of water ingress and guidelines for a recommended fix.
Prerequisites
It is assumed the technician working on the vehicle will be at least level 3 trained and normal vehicle service protection equipment will be used where appropriate i.e. seat covers, wing covers etc.
Water Leak Diagnosis
There are certain basic tools required for effective water leak detection the following are a few recommendations.
| Basic tools |
| Hosepipe |
| Water supply |
| Pressure Washer |
| Watering Can |
| Torch |
| Mirror (telescopic type) |
| Air supply |
| Boning tool (Nylon shaped block for trim removal) |
There are several adaptations of tools that can be used, for example a watering can rose attached to a hosepipe to create a spray, or a new sealant tube nozzle attached to a hosepipe can be very effective to direct water into awkward corners, there are also several ready made hosepipe nozzles available from DIY stores which can be switched through several different water patterns, and finally not forgetting a normal car wash. With the exception of a car wash initial diagnosis is more accurate if carried out by two people, one inside and one outside the vehicle, the person outside can direct the water onto the areas where the leak is suspected to be entering, and the person inside can inspect with a 12 volt hand lamp to confirm the entry point.
It is worth bearing in mind that the location that the water appears in the interior of the vehicle, may not be the leak source, for example water lying in the passenger footwell could be entering on the drivers side and running across, behind the fascia. In order to find the water entry point, trim or components may have to be removed.
Staining
Often when water has been entering over a period of time, the water entry point can be located visually by following the stains or tracks left by the leak.
Sealing Water Leaks
There are different substances that can be used to seal water leaks, putty type sealant and wet/paste sealant. Examples of these are bostic (dum-dum) "303 glasticon" and "betafill 10210" which is a white paste and "terostat 33" which is clear.
NOTE:
Do not use silicon based sealers as these will cause problems if any subsequent paint operations are required.
Careful consideration needs be given as to the substance used to seal a water leak, for example an external seam on a white vehicle would require white or clear sealant, dum-dum is best used in concealed places to fill larger gaps. The sealant should be applied in a manner that it does not look unsightly when finished, if used in a box section or under a carpet, applying and smoothing over should be ok, but on the external panels or visible areas the sealant should be "wiped" into the gap and any excess removed with a suitable spirit that will not harm the vehicles paintwork
Once the water entry point has been confirmed, the suspect area must be sufficiently dried prior to the application of any sealing compound the use of a compressed air will assist
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PINPOINT TEST A : ROOF OPENING PANEL WATER INGRESS
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| A1: WATER LEAK TEST |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Carry out a water leak test of the roof opening panel
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Is the water ingress via the roof opening panel?
Yes
No
The water ingress is not from the roof opening panel or aperture. Investigate water ingress from other areas
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| A2: GLASS SEAL LOCATION |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the roof opening panel glass seal
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Is the roof opening panel glass seal installed correctly?
Yes
No
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| A3: GLASS SEAL CONDITION |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the roof opening panel glass seal for damage
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Is the roof opening panel glass seal damaged?
Yes
No
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| A4: GLASS SEAL GAP |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the gap surrounding the roof opening panel glass seal for consistency (Central in aperture)
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Is the roof opening panel glass seal central in the aperture?
Yes
No
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| A5: WATER LEAK TEST |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Carry out a water leak test of the roof opening panel
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Is the water ingress via the roof opening panel?
Yes
No
No further action required
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| A6: GLASS SEAL GAP |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the gap surrounding the roof opening panel glass seal for consistency (Central in aperture)
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Is the roof opening panel glass seal central in the aperture?
Yes
No
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| A7: DRAIN TUBES ACCESS FROM ABOVE |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
NOTES:
-
The sliding roof/tilting roof is installed in a water trap. The water drains off via the water trap, water drain holes and drain tubes. The drain tubes lead downwards on both sides via the A-pillar and C-pillar
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The drain holes or drain tubes can become clogged with leaves, dirt or underbody protection
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1
Check the water trap for leaks
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2
Check the drain tubes for leaks and for correct connection to the water trap
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3
Check the drainage system for unhindered flow, and blow out with compressed air if necessary
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Are drain tubes free from obstruction & working correctly?
Yes
No
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| A8: DRAIN TUBES CONNECTION AND ROUTING |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Gain access to the drain tubes at the roof opening panel REFER to: Headliner (501-05 Interior Trim and Ornamentation, Removal and Installation).
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2
Confirm that the drain tubes are correctly attached to the roof opening panel
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3
Confirm that the drain tubes are not kinked or twisted
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4
Gain access to the drain tubes where they exit the vehicle
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5
Confirm that the drain tubes correctly exit the vehicle
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Are the drain tubes attached at the roof opening panel and correctly routed within the vehicle?
Yes
No
Correctly install the water drain tubes, confirm that there are no kinks or twists GO to A9.
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| A9: WATER LEAK TEST |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Carry out a water leak test of the roof opening panel
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Is the water ingress via the roof opening panel?
Yes
No
The water ingress is not from the roof opening panel or aperture. Investigate water ingress from other areas
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| A10: ROOF OPENING PANEL FRAME JOINT LEAK TEST |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Detach all 4 drain tubes and block the ends with butyl (to keep water in the sunroof channels)
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2
Raise the front wheels of the vehicle by 15cm
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NOTE:
Pour into water management channel only, do not pour water into dry channel
3
Pour 30ml of water into both of the outboard channels to the fill rear end caps
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4
Lower the front vehicle
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5
Pour water over joint between the guide rail and front cross member
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6
Adjust the angle by raising the rear of the vehicle to ensure water covers the joints (shown). Leave in this condition for 15 minutes
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7
Inspect the rail joints for water ingress
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Is the water ingress via the roof opening panel frame through the rail joints with plastic components?
Yes
No
Contact dealer technical support
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| A11: RAIL JOINT REPAIR |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Rail Joint Repair
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2
Thoroughly clean and degrease the areas to be sealed, dry the area using compressed air
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NOTE:
Use sealant 'Betafill 10210' or equivalent not silicone sealant
3
Apply the sealant to cover the entire joint, repeat for each failed joint
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4
Allow 24 hours for sealer to cure
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5
Carry out a water leak test of the roof opening panel
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Is the water ingress via the roof opening panel?
Yes
Contact dealer technical support
No
No further action required
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PINPOINT TEST B : ROOF OPENING PANEL INOPERATIVE
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| B1: OPERATION |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Operate the roof opening panel using the overhead console mounted switch
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Does the roof opening panel move or attempt to move?
Yes
Refer to symptom chart above - Roof opening panel sticking/jamming
No
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| B2: CALIBRATION ROUTINE AND RESET |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Complete the roof opening panel calibration routine and reset the functions.
- Ensure blind is fully closed
- Press and hold the tilt switch. When the roof is in the full tilt position, release the switch
- Press and hold the tilt switch again for 20 seconds
- The roof and blind will then open. Ensure the switch remains pressed throughout the full opening and closing movement, until the roof is fully closed
- Once the roof is in the fully closed position, the routine is complete
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2
Operate the roof opening panel using the overhead console mounted switch
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Does the roof opening panel operate correctly?
Yes
No further action required
No
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| B3: SWITCH - CIRCUIT CHECK 1 |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
NOTE:
The roof opening panel motor gives a voltage out on the open and close circuits which is grounded when the switch is operated, this voltage should be greater than 7volts (switch inactive) and less than 1volt (switch active) with the ignition state switched to on
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1
Refer to the electrical circuit diagrams and locate the open and close circuits between the roof opening panel motor and the roof opening panel switch, monitor the voltage on each circuit as the switch is operated
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Do both open and close switch circuit voltages change from greater than 7volts to less than 1volt when the roof opening panel open or close switches are operated?
Yes
No
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| B4: SWITCH - CIRCUIT CHECK 2 |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
NOTES:
-
During the previous check, if the voltage remained high (greater than 7volts), refer to the electrical circuit diagrams and check the switch circuit for fault.
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During the previous check, if the voltage remained low (less than 1volt), refer to the electrical circuit diagrams and check the roof opening panel motor circuit for fault.
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1
Refer to notes above
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Did the voltage remain low (less than 1volt)?
Yes
No
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| B5: POWER SUPPLY |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Refer to the electrical circuit diagrams and check the voltage between the power - VBATT - and ground - GND - circuits to the roof opening panel motor for battery supply voltage (approx. 12volts)
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Do the (VBATT) and (GND) circuits to the roof opening panel motor receive battery supply voltage?
Yes
No
Refer to the electrical circuit diagrams, investigate and rectify the loss of power to the roof opening panel
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| B6: LIN BUS CIRCUIT |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
NOTE:
The authorization signal is transmitted via the LIN Bus circuit when the ignition status is set to on
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1
Refer to the electrical circuit diagrams and check the (LIN Bus) circuit between the central junction and the roof opening panel control module for continuity
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Did the (LIN Bus) circuit pass the continuity test?
Yes
No
Refer to the electrical circuit diagrams, investigate and rectify the circuit fault
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| B7: ROOF OPENING PANEL MOTOR |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Install a new roof opening panel motor REFER to: Roof Opening Panel Motor (501-17 Roof Opening Panel, Removal and Installation).
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2
Complete the roof opening panel calibration routine and reset the functions.
- Ensure blind is fully closed
- Press and hold the tilt switch. When the roof is in the full tilt position, release the switch
- Press and hold the tilt switch again for 20 seconds
- The roof and blind will then open. Ensure the switch remains pressed throughout the full opening and closing movement, until the roof is fully closed
- Once the roof is in the fully closed position, the routine is complete
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Does the roof opening panel operate correctly?
Yes
No further action required
No
If customer concern is still evident contact dealer technical support
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PINPOINT TEST C : ROOF OPENING PANEL STICKING / JAMMING
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| C1: SIDE COVER / CONCERTINA JAMMING |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Operate the roof opening panel using the overhead console mounted switch
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Is the side cover/concertina jamming?
Yes
No
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| C2: SIDE COVER / CONCERTINA DAMAGE |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the side cover/concertina for damage
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Is the side cover/concertina damaged?
Yes
Replace the side cover/concertina. Check for correct roof opening panel operation
No
Correctly install the side cover/concertina. Check for correct roof opening panel operation
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| C3: GLASS SEAL GAP |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the gap surrounding the roof opening panel glass seal for consistency (Central in aperture)
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Is the roof opening panel glass seal central in the aperture?
Yes
No
Check for correct roof opening panel operation. If customer concern is still evident contact dealer technical support
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| C4: RAIL DAMAGE |
| TEST CONDITIONS | DETAILS/RESULTS/ACTIONS |
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1
Visually inspect the roof opening panel rails for damage
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Are the roof opening panel rails for damaged?
Yes
Replace roof opening panel frame assembly (not the complete roof opening panel) REFER to: Roof Opening Panel (501-17 Roof Opening Panel, Removal and Installation)..
No
Clean and lubricate the roof opening panel rails using lubricant Klubersynth LF 44-22. Check for correct roof opening panel operation. If customer concern is still evident contact dealer technical support
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