Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts
Technical Service Bulletin # LI83-50_N-048689 Date: 100201
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:
Mercedes Benz Truck Sprinter 2500 Panel
Page 47
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.Technical Service Bulletin #
LI82-10_N-048712 Date: 100114
Lighting - Headlamps Fogged/Leaking/Condensation
Headlamps and lamps fogged and/or leaking
Topic number LI82.10-N-048712
Version 1
Design group 82.10 Exterior lights
Date 01-14-2010
Validity Model 639, 906
Reason for change
Mercedes Benz Truck Sprinter 2500 Panel
Page 48
Reason for block
Complaint:
Headlamps fogged, condensation forms.
Cause:
The following causes may apply and require different repair methods:
a) When the headlamp cools down (1), e.g. after switching off, in rain or when washing, the air is drawn in and the moisture condenses on the
headlamp lens.
Note:
Fogging of the headlamp lens from inside is caused by physical reasons and does not represent any damage.
b) Plugs (2) on the back of the headlamp (1) are not inserted correctly.
Remedy:
Note:
Warranty claims will be rejected provided that no leakages due to defective parts are proven.
Carry out remedies as per the cause:
a) Venting of the headlamp (1) ensures the existing fogging disperses again after some time in operation.
b) Insert plug correctly; for this purpose:
1. Remove plug (2) on the back of the headlamp (1).
2. Remove moisture from the headlamp housing.
Note:
Switch on high beam, front fog light and the flasher when the charger is connected until the moisture in the headlamp housing has disappeared.
3. Install plug (2) on the back of the headlamp (1).
Note:
For this purpose insert the lower retaining lugs (arrows) of the plug (2) correctly and then press on the upper retaining lugs (arrows) until clicking
in place is audible.
Technical Service Bulletin # LI83-50_N-048689 Date: 100201
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:
Mercedes Benz Truck Sprinter 2500 Panel
Page 47
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.Technical Service Bulletin #
LI82-10_N-048712 Date: 100114
Lighting - Headlamps Fogged/Leaking/Condensation
Headlamps and lamps fogged and/or leaking
Topic number LI82.10-N-048712
Version 1
Design group 82.10 Exterior lights
Date 01-14-2010
Validity Model 639, 906
Reason for change
Mercedes Benz Truck Sprinter 2500 Panel
Page 48
Reason for block
Complaint:
Headlamps fogged, condensation forms.
Cause:
The following causes may apply and require different repair methods:
a) When the headlamp cools down (1), e.g. after switching off, in rain or when washing, the air is drawn in and the moisture condenses on the
headlamp lens.
Note:
Fogging of the headlamp lens from inside is caused by physical reasons and does not represent any damage.
b) Plugs (2) on the back of the headlamp (1) are not inserted correctly.
Remedy:
Note:
Warranty claims will be rejected provided that no leakages due to defective parts are proven.
Carry out remedies as per the cause:
a) Venting of the headlamp (1) ensures the existing fogging disperses again after some time in operation.
b) Insert plug correctly; for this purpose:
1. Remove plug (2) on the back of the headlamp (1).
2. Remove moisture from the headlamp housing.
Note:
Switch on high beam, front fog light and the flasher when the charger is connected until the moisture in the headlamp housing has disappeared.
3. Install plug (2) on the back of the headlamp (1).
Note:
For this purpose insert the lower retaining lugs (arrows) of the plug (2) correctly and then press on the upper retaining lugs (arrows) until clicking
in place is audible.
