Pinpoint Test B: The Roof Opening Panel Leaks

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions
When the roof opening panel glass is completely closed, it is flush with the roof panel. The roof opening panel weatherstrip provides a seal against adverse weather conditions such as rain and wind, preventing them from entering the passenger compartment. A damaged, deformed or incorrectly installed weatherstrip is unable to seal the glass efficiently. The roof opening panel trough assembly and drain hoses provide a route for water to drain away from the opening panel, damaged or obstructed drain hoses or trough assembly will allow water to collect and possibly leak into the passenger compartment.

Possible Sources
- Incorrect roof opening panel glass alignment
- Roof opening panel drain hoses
- Roof opening panel glass seals
- Damaged roof opening panel frame
- Incorrect position of the roof opening panel glass
Visual Inspection and Pre-checks
- Roof opening panel seals

B1 VERIFY CUSTOMER OPERATION OF THE ROOF OPENING PANEL WHEN PARKED
- Make sure the customer is parking with the roof opening panel correctly in the closed position.
Is the customer parking with the roof opening panel in the closed position?

Yes GO to B2

No Instruct the customer to REFER to the Owner's Literature for correct operation of the roof opening panel.

B2 CHECK THE ALIGNMENT OF THE ROOF OPENING PANEL
- Make sure the roof opening panel glass is centered and flush with the roof line.
Is the roof opening panel aligned correctly?

Yes GO to B3

No ALIGN the roof opening panel. REFER to: Roof Opening Panel Alignment .

B3 CHECK THE WEATHERSTRIP CONDITION

NOTE: The seal has a bonded joint located on the passenger side or rear edge. This is not a defect.
- Check the roof opening panel seal for position, deformation, cracks, tears, or looseness.
Is the roof opening panel seal in good condition and free from damage?

Yes GO to B4

No INSTALL a new roof opening panel glass. REFER to: Roof Opening Panel Glass .

B4 CHECK THE WATER TROUGH CONDITION
- Check the roof opening panel rear trough for damage. Check the water trough and guides for damage and/or correct attachment and function.
Is the water trough OK?

Yes GO to B5

No REPAIR or INSTALL a new roof opening panel water trough assembly as necessary. REFER to: Trough Assembly .

B5 CHECK THE DRAIN HOSES
- Make sure the drain hoses are all connected and not cracked, slit, pinched or obstructed.
Are all the drain hoses present and attached correctly?

Yes GO to B6

No REPAIR or INSTALL a new drain hose(s).

B6 CHECK THE DRAIN HOSES FOR CORRECT FLOW

NOTE: Drain hoses must flow downhill and cannot be pinched or restricted by headliner or any other trim components.

With the panel open, slowly pour water into the water trough area and make sure that the same amount of water exits the vehicle at the bottom of the A and C-pillars.

Check drain hoses for obstructions by blowing compressed air through the drain spouts in the water trough area, then retest with water.

Are the drain hoses operating correctly?

Yes	INSPECT other areas of the vehicle that may cause water to enter the roof area such as the windshield or luggage rack, if equipped, and REPAIR as necessary. TEST the system for normal operation, if the condition still exists, GO to B7

No	LOWER the headliner and INSPECT the drain hoses for correct routing. REPAIR or INSTALL a new drain hose(s) as necessary.

B7 CHECK THE CONDITION OF THE ROOF OPENING PANEL FRAME
- Check the roof opening panel frame for damage that may cause the roof opening panel seal to seat incorrectly.
Is the roof opening panel frame OK?

Yes INSTALL a new roof opening panel glass. REFER to: Roof Opening Panel Glass .

No REPAIR or REPLACE the roof opening panel frame as necessary. REFER to: Roof Opening Panel Frame .