Body - Sunroof Won't Open In High Temperatures
SI M 54 03 08
Special Roofs
June 2010
Technical Service
This Service Information bulletin supersedes SI M54 03 08 dated July 2009.
[NEW] designates changes to this revision
SUBJECT
Sunroof Will Not Open at High Temperatures
Date: 1006012010 Mini Cooper (R56) L4-1.6L (N12)
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MODEL
R55, R56 (Cooper and Cooper S, Cooper Clubman and Cooper S Clubman)
SITUATION
At high ambient temperatures, typically above 90 degrees, the sunroof may not open from the fully closed position. When this occurs, the
rear edge of the glass panels will rise by about 10mm and then either stall in that position or close again.
Assisting the glass by pressing upward on it or allowing the sunroof to cool slightly will restore normal function.
CAUSE
The blocking protection feature of the sunroof drive is being activated due to the presence of higher than expected frictional forces in the
sunroof cassette. Such forces are only present at very high temperatures, and caused by a lack of proper lubrication along with incorrectly
adjusted glass panels.
CORRECTION
Adjust the glass panels and perform the recommended lubrication procedures.
It is not advised to replace the sunroof cassette for this situation.
PROCEDURE
If the sunroof is binding at a position other than when it is first starting to open or at significantly lower temperatures, a sunroof cassette
problem may be present. Normal diagnostic procedures should be followed for these cases.
1. Perform a short test and ensure that no charging system or battery-related problems are present.
NOTE:
If the battery is not fully charged, a similar sunroof problem may be present.
2. Remove both the front and rear glass panels per Repair Instruction RA 5410240 (front) and RA 5410250 (rear).
3. Measure the gap on the left and right side of the cassette, between the rear edge of the wind deflector base and the leading edge of the
sliding mechanism.
a. If the gap on the left side is equal to that of the right side, continue to step 4.
b. If the gap is not equal, remove the sunroof drive per Repair Instruction RA 6761515.
c. Move one of the sliding mechanisms by hand until the spacing is equal on the left and right side.
d. Install the drive and operate the sunroof to ensure the sliders move together.
4. Use Kluberplex adhesive spray grease to thoroughly coat and lubricate the areas identified in the attached document.
5. Install the glass panels and adjust per Repair Instruction RA 5413002 with the following exceptions:
a. The front edge of the front panel should be 0.5 - 1.5mm lower than the roof line.
b. The rear edge of the front panel should be 0.5 - 1.5mm higher than the front edge of the rear panel.
c. The rear edge of the rear panel should be 0.5 - 1.5mm higher than the roof line.
6. Do not replace the perimeter seal unless it is damaged.
7. Initialize the sunroof with the engine running per Repair Instruction RA 5400...
a. Reinitializing the sunroof is essential to the effectiveness of this repair.
b. With the sunroof fully closed, hold the sunroof close switch at the first detent for approximately 20 seconds. Continue to hold until the2010 Mini Cooper (R56) L4-1.6L (N12)
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8. Cycle the sunroof at least 5 times to allow the lubricant to penetrate all moving parts of the sunroof cassette.
PARTS INFORMATION
WARRANTY INFORMATION
ATTACHMENTS2010 Mini Cooper (R56) L4-1.6L (N12)
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view PDF attachment M540308Lubrication_Procedure.
