D83.55-1107-08
1 | Refrigerant compressor | 3 | Refrigerant line | 5 | Screw | ||
2 | Electrical connector | 4 | Refrigerant line | 6 | Bolts |
| Remove/install | ||
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Danger | Risk of death caused by falling from vehicle roof. Risk of injury to other persons caused by falling objects during work in roof area. | Work on or in the area of the vehicle's roof may only be performed on suitable aids (ladders, scaffolds, assembly platforms). Sufficiently secure the working area. | |
Danger | Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant. | Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained. | |
Warning | Risk of injury caused by exiting refrigerant and by contact with the components of the refrigerant system | Wear protective clothing, safety gloves and safety glasses. | |
Notes on handling refrigerant R134a | |||
Protect air conditioning circuit and components from moisture when carrying out repair work | |||
1 | Switch off roof-mounted air conditioning system | See owner's manual. | |
2 | Disconnect external 110 V feed line from vehicle | See owner's manual. | |
3 | Remove web-type fuse | ||
Roof-mounted air conditioning system in the engine compartment | |||
4 | Drain roof-mounted air conditioning system | ||
Roof-mounted air conditioning system, Schrader model 103K | |||
5 | Remove poly-V-belt from refrigerant compressor (1) | ||
6 | Disconnect electrical connection (2) | ||
7 | Unscrew refrigerant line (3) from refrigerant compressor (1) | Installation: Replace O-ring of refrigerant line (3). | |
8 | Unscrew refrigerant line (4) from refrigerant compressor (1) | Installation: Replace O-ring of refrigerant line (4). | |
9 | Remove screw/bolt (5) | ||
10 | Remove bolts (6) | ||
11 | Remove refrigerant compressor (1) | Installation: Determine remaining oil quantity in removed refrigerant compressor (1) using a measuring cup. Drain refrigerant compressor (1) to be installed and fill with new compressor oil (measured oil quantity of removed refrigerant compressor (1)). | |
If the refrigerant compressor (1) has to be replaced due to an internal defect, then replace the roof-mounted air conditioning system assembly. | |||
Refer to: | |||
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Remove/install roof-mounted air conditioning system on vehicle roof | |||
12 | Install in the reverse order | ||
13 | Evacuate roof-mounted air conditioning system, refill it and check for proper operation and leak tightness | ||
Roof-mounted air conditioning system, Schrader model 103K |
Referenced documents
- ah8330n000301a Notes on handling refrigerant R134a
- ah8330n000501c Protect air conditioning circuit and components from moisture when carrying out repair work
- ar5415d2100b Remove web-type fuse
- ar8330d1000a Detach/attach roof air conditioning on vehicle roof
- ar8330d1760c Drain, evacuate and recharge air conditioning, check for proper operation and check for leaks
- ar8365d2060b Remove/install V-belt of refrigerant compressor
- as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)
- as6500z000201b Risk of death caused by falling from vehicle roof. Risk of injury to other persons caused by falling objects during work in roof area.
- as8300z000101a Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.
- as8661z000201a Risk of injury caused by exiting refrigerant and by contact with the components of the refrigerant system