LI83.50-N-048689 Service Bulletin/Repair Instructions

Water entry via roof air conditioning (HH7 I HOB)

Topic number
Ll83.50-N-048689
Version
3
Design group
83.50 Rear air conditioning
Date
09-12-2013
Validity
Model 906.6 and 906. 7
Reason for change
Distribution extended
Reason for block
Complaint:

Water Ingress in Passenger Area
Cause:

External Leak:

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

2. Leak between evaporator unit and vehicle roof.

Insufficient Condensation drainage:

3. Condensation build-up in the AC housing entering vehicle through the air vent
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.

Remedy 3: Open a PTSS case for solution to be provided.
Attachments

File
Designation
1.jpg
Water traces in evaporator unit.
2.jpg
Examples of an incorrectly routed seal.
Symptoms

Body I Body/Cab I Body sealing I Water entry
Parts

Part number
ES1 ES2
09-12-2013 10:58 PM

©Copyright Daimler AG
Designation
Quantity Note
EPC Other

make

part
RGHAZIZ
Page 1/3
..

A0019877346
Terostat sealing profile
3m
A0008352923
Sealing frame
1
Additionally for remedy 2
x

x
Work units

Op. no.
Operation text
83-7258
Time
Damage

code
Note
REMOVE/INSTALL EVAPORATOR

UNIT OF REAR AIR CONDITIONING IF

NECESSARY (SYSTEM EMPTIED)
83673 04
Only for remedy 2
83-1770
EMPTY, EVACUATE, REFILL AIR

CONDITIONING VEH. WITH ROOF AIR

CONDITIONING
83673 04
Only for remedy 2
83-0000
REMOVE/INSTALL OUTER COVER

FOR EVAPORATOR UNIT
83673 04
83-0000
AS PER PTSS CASE INSTRUCTIONS
83357 07
Only for remedy 3
WIS-References

Document number
Tille
Note
Allocation
SM83.50-D-0001AK
Seal air conditioning
If water enters between cover and evaporator unit
Remedy
AR83.50-D-5040B
Remove/install evaporator Only if water enters betunit of air conditioning (roof ween evaporator unit and

equipment)

vehicle roof
Remedy
Validity

Vehicle
Engine
Transmission
906.611
•

•
906.653
•

•

•

•

•

•

•
906.655
•
906.657
•
•

•

•

•

•

•
906.711
•
•
906.713
•

•

•

•
•

•

•

•
906.613

906.631

906.633

906.635

906.637
906.731

906.733

906.735
•
.
IAttachments

09-12-2013 10:58 PM

© Copyright Daimler AG
RGHAZIZ

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1.jpg:
2.jpg;
09-12-201310:58 PM

© Copyright Daimler AG
RGHAZIZ

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