Sunroof / Moonroof: Service and Repair
Moonroof Index
Troubleshooting
Glass Rear Edge Closing Adjustment
Open the glass about a foot, then close it to check where rear edge begins to rise. If it rises too soon and seats too tightly against the roof panel, or too late and does not seat tightly enough, adjust it.
1. Open the glass fully.
2. Remove the rail covers (see below) from both sides, and loosen the lift-up guide nuts.
3. Move the lift-up guides and link stopper forward or backward, then tighten nuts and recheck glass closing. The guides have pitches of 1.5 mm (0.06 in) each and can be adjusted 2 pitches forward or backward.
4. If necessary, lower the rear of the headliner and remove the motor, then adjust the inner cables (location of sliders) until they are parallel.
Glass Height Adjustment
The roof panel should be even with the glass weatherstrip, to within 1 ± 0.5 mm (0.04 + 0.02 in) all the way around. If not, open the glass fully, and adjust.
Front:
1. Pry out the rail holder cover and loosen the nut.
2. Install the front shims between frame and sunshade rail holder.
FRONT: Shim thickness Max. 2 mm (0.08 in)
Rear:
1. Remove the rail cover (see below) and loosen the lift-up guide nut.
2. Install the rear shims between guide rail and sunshade rail.
REAR: Shim thickness Max. 2 mm (0.08 in)
3. Repeat on opposite side if necessary.
4. Side-to-side fit of the glass weatherstrip can be adjusted by loosening the frame mounting bolts and moving the frame (see below).
Deflector Adjustment
NOTE: A gap between deflector seal and roof panel will cause wind noise when driving at high speed with the glass open.
1. Open the glass and pry the rail covers (see below) off both sides.
2. Loosen the deflector mounting nuts.
NOTE:The deflector can be adjusted 2 mm 10.08 in) forward or backward.
3. Adjust the deflector forward or backward so the edge of its seal touches the roof panel evenly. The deflector seal should touch the roof panel across entire front edge.
NOTE: The height of the deflector when open cannot be adjusted. If damaged or deformed, replace it (see below).
Glass and Sunshade Replacement
1. Open the glass fully.
2. To remove the glass, first remove:
^ Rail holder cover
^ Rail cover
^ Sunshade rail holder
^ Deflector
^ Link stopper
^ Lift-up guide
3. Slide the glass forward using the moonroof wrench, then remove the front sliders from the sunshade rails.
NOTE: Do not scratch the roof panel with the front slider.
4. Lift the sunshade rail with the guide rail and insert a space such as a wooden block to prevent interference between the sunshade rail and bolt.
5. Remove the link slider from the inner cable sliders by lifting the glass, then remove the glass.
6. Slide the sunshade forward, then remove the sunshade.
7. Install the glass and sunshade in the reverse order of removal~
NOTE:
^ Take care not to pinch the drain seal in the sunshade rail.
^ Check for water leaks.
Motor, Drain Tube and Frame Replacement
CAUTION: Be careful not to damage the seats, dashboard and other interior trim.
1. Remove the headliner.
2. Disconnect the motor connector; remove the clips securing the ceiling light wire harness.
NOTE: When removing the motor, remove the two mounting bolts and three nuts.
3. Disconnect the drain tubes.
4. Remove the ten 6 x 16 mm mounting bolts and rear hooks, then remove the frame from the car.
NOTE: You may require assistance when removing the frame.
5. Pull the drain tubes out the front and rear pillars.
NOTE:Before pulling out the drain tube, tie a string to the end of it so it can be reinstalled.
6. To install, insert the frame's rear hooks into the body holes, then install the remaining parts in the reverse order of removal.
NOTE:
^ Install the tube clips with the ends facing the side to ease installation of the headliner.
^ Clean the surface of frame.
^ Check the drain seal.
^ Check for water leaks.
Guide Rails/Cable Replacement
1. With the moonroof out of the car, remove the motor from the frame.
2. Remove the guide rail mounting nuts and lift off the guide rails, then remove the inner cables with sliders attached.
3. If necessary, remove the sunshade rail and drain seal from the frame.
NOTE:Take care not to bend the cable pipes and guide rails.
4. Install the guide rails and cable assembly in the reverse order of removal.
NOTE:
^ Take care not to damage, twist or lift the drain seal.
^ Make sure the sliders are parallel when installing the motor.
Link Slider/Lift-up Link Disassembly
1. Remove the glass.
2. Pull the front slider from the front stay.
3. Remove the link lifter, then remove the E-clip.
4. Remove the lift-up link from the rear stay. Drive the link shaft out, then separate the lift-up link and link slider.
5. Assemble the link slider and lift-up link in the reverse order of disassembly.
NOTE:
^ Damaged parts should be replaced.
^ Apply the grease to the sliding portion.
Opening Drag Check (Motor Removed)
Before installing the motor, measure the effort required to open the glass using a spring scale as shown.
CAUTION: When using the spring scale, protect the leading edge of the glass with a shop towel. If load is over 98 N (1O kg, 22 lbs), check side clearance and glass height adjustment (see above)
Lift-up Guide/Deflector Replacement
Mounting nuts torque: 9 N.m (0.9 kg-m, 6.5 lb-ft)
Closing Force Check (Motor Installed)
1. After installing all removed parts have a helper hold the switch to close the glass while you measure force required to stop it. Attach a spring scale as shown. Read the force as soon as the glass stops moving, then immediately release the switch and spring scale.
CAUTION: When using the spring scale, protect the leading edge of the glass with a shop towel.
Closing Force: 196-245 N (20-30 kg, 44-55 lbs)
2. If the force is not within specification, install a new lock washer, adjust the tension by turning the motor clutch adjusting nut, then bend the lock washer against the adjusting nut.