Diesel Data: Automotive Repair

Pinpoint Test D: The Roof Opening Panel Is Noisy During Operation




Roof Opening Panel

Pinpoint Test D: The Roof Opening Panel is Noisy During Operation

Normal Operation

The roof opening panel operates smoothly and quietly while opening and closing.

This pinpoint test is intended to diagnose the following:

- Roof rail assembly front tracks

- Roof rail assembly rear tracks

- Roof opening panel sliding glass

- Roof opening panel air deflector assembly

- Roof opening panel shade tracks

- Roof opening sliding glass panel motor

- Roof opening panel shade motor

- Roof opening sliding glass panel motor block and drive tube assembly

- Roof opening panel shade motor block and drive tube assembly

- Headliner

- Overhead console

PINPOINT TEST D : THE ROOF OPENING PANEL IS NOISY DURING OPERATION

D1 VERIFY THE ROOF OPENING PANEL SHADE OPERATION

- NOTE: Before performing this pinpoint test, make sure the roof rail assembly front tracks are free of any foreign material.
With the roof opening panel glass fully closed, open and close the shades while observing the noise.


Is the noise present during shade operation?

Yes
GO to D3.

No
GO to D2.

D2 VERIFY THE ROOF OPENING PANEL OPERATION

- With the shades fully open, open and close the roof opening sliding glass panel while observing the noise.

Is the noise present during sliding glass operation?

Yes
If the noise occurs during primary seal engagement only, apply silicone spray lubricant to the primary seal. TEST the system for normal operation. If noise is still present, INSTALL a new primary seal. REFER to Roof Opening Panel Seal - Primary .

If the noise occurs during transition to VENT only, carefully spray PTFE lubricant to the rail assembly slide. TEST the system for normal operation.

If the noise occurs only while the air deflector is moving downward, LUBRICATE the air deflector arm and spring. TEST the system for normal operation. If noise is still present, INSTALL a new air deflector assembly. REFER to Air Deflector . If noise is still present, INSTALL a new roof rail assembly front track and rail assembly slides. REFER to Rail Assembly - Roof, Front Track .

If the noise sounds like a muffled ratchet/purr, INSTALL a new sliding glass motor block and drive tube assembly. REFER to Roof Opening Panel Motor Block and Drive Tube Assembly - Sliding Front Panel .

If none of the above conditions apply, INSTALL a new roof opening sliding glass panel motor. REFER to Roof Opening Panel Motor - Sliding Front Panel . TEST the system for normal operation.

No
The roof opening panel is operating correctly at this time.

D3 CHECK THE ROOF OPENING PANEL FRONT SHADE

- With the front shade disconnected, open and close the rear shade.

Is the noise still present?

Yes
GO to D4.

No
INSTALL a new front shade assembly. REFER to Roof Opening Panel - Exploded View and Roof Opening Panel Shade Assembly . TEST the system for normal operation.

D4 CHECK THE ROOF OPENING PANEL REAR SHADE

- With the front and rear shade disconnected, open and close the shades.

Is the noise still present?

Yes
If the noise sounds like a muffled ratchet/purr, INSTALL a new LH and RH shade track assembly and shade motor block and tube assembly. REFER to Roof Opening Panel Shade Track and Mechanism and Roof Opening Panel Motor Block and Drive Tube Assembly - Shade . TEST the system for normal operation. If the noise is still present, INSTALL a new LH and RH roof rail assembly front tracks and rail assembly slides. REFER to Rail Assembly - Roof, Front Track .

If the above condition does not apply, INSTALL a new roof opening panel shade motor. REFER to Roof Opening Panel Motor - Shade . TEST the system for normal operation.

No
INSTALL a new rear shade assembly. REFER to Roof Opening Panel - Exploded View and Roof Opening Panel Shade Assembly . TEST the system for normal operation.