A/C - Water Entry Via Roof Air Conditioning

Water entry via roof air conditioning (HH7)

Topic number LI83.50-N-048689

Version 1

Design group 83.50 Rear air conditioning

Date 02-01-2010

Validity Model 906.6 and 906.7

Reason for change

Reason for block

Complaint:

Water enters vehicle interior via roof air conditioning (code HH7).

Cause:





1. Leak between cover and evaporator unit on vehicle roof. (with production date before January 2007)

2. Leak between evaporator unit and vehicle roof.

Remedy:

Check the cover for damage. If there is no damage on the cover, remove the cover panel from the roof air conditioning.





If there are traces of water in the evaporator unit (see picture 1), the water is entering the air conditioning via the bolt holes of the cover panel.

Remedy 1: See WIS document SM83.50-D-0001AK





If no traces of water are visible, the water may have entered the vehicle interior due to an improperly routed seal between the evaporator unit and vehicle roof (see picture 2).





Remedy 2: Remove/install evaporator unit of air conditioning (roof equipment) and replace seal.