AR83.55-W-5300E | Remove/install refrigerant compressor | 12.10.10 |
MODEL 375.4 with BODY 375.860 with CODE (H03) Air conditioning in front end
MODEL 940, 942, 943, 944 with BODY 944.890 with CODE (H03) Air conditioning in front end
W83.55-1022-06
1 Refrigerant compressor
2 Bolts
3 Refrigerant lines
4 Clamps
5 Electrical line
Modification notes
30.6.08 | "Detach refrigerant lines (3) from refrigerant compressor (1)" added. | Step 14 | |
"Correct oil level in refrigerant compressor (1)" added | Step 15 |
| Remove/install | ||
1 | Switch off ignition | ||
2 | Open maintenance flap | ||
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. | |
3 | Discharge air conditioning system | ||
| Protect air conditioning circuit and components from moisture when carrying out repair work | ||
| Notes on handling R134a refrigerant | ||
4 | Remove soundproofing from bottom of engine | ||
Danger! | Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. | |
5 | Drain coolant | ||
| Notes on coolant | ||
6 | Remove coolant pipe from refrigerant compressor (1) | ||
7 | Release poly-V belt and disassemble refrigerant compressor (1) | Installation: Check poly-V belt, replace if necessary. Observe routing diagram: | |
Routing diagram of poly V-belt | |||
| Damage profiles for a poly-V belt | ||
8 | Remove bolts on clamps (4) | ||
9 | Disconnect refrigerant lines (3) from condenser | Installation: Replace sealing rings. | |
| Protect air conditioning circuit and components from moisture when carrying out repair work | ||
10 | Detach electrical connection on refrigerant compressor (1) | Installation: Install new cable ties. | |
11 | Detach electrical line (5) from refrigerant line (3) | Installation: Install new cable ties. | |
12 | Remove bolts (2) on refrigerant compressor (1) | | |
13 | Remove refrigerant compressor (1) | ||
14 | Detach refrigerant lines (3) from refrigerant compressor (1) | Only when replacing refrigerant compressor (1). | |
Installation: Replace sealing rings. | |||
| |||
15 | Correct oil level in refrigerant compressor (1) | Only when replacing refrigerant compressor (1). | |
16 | Install in the reverse order | ||
17 | Check air conditioning for proper operation |
Refrigerant compressor