1 | Expansion valve |
2 | Nut |
3 | Suction pipe |
4 | Pressure line |
5 | Bolts |
P83.30-3794-06
| Remove | ||
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. | |
Topical note | Protect air conditioning circuit and components from moisture when carrying out repair work | ||
Topical note | Procedure for a damaged or leaky air conditioning system | ||
Notes on handling refrigerant R134a | |||
1 | Empty front air conditioning system | ||
2 | Remove wiper system | ||
3 | Unscrew nut(2) | ||
4 | Detach suction line (3) and pressure line (4) from expansion valve (1) | ||
5 | Seal openings on suction line (3) and pressure line (4) | ||
6 | Unscrew bolts (5) and remove expansion valve (1) | ||
7 | Seal connections for expansion valve (1) on air conditioner housing | ||
| Install | ||
8 | Remove stop plug, position expansion valve (1) and tighten bolts (5) | Install new sealing rings. | |
Screw/bolt on expansion valve | |||
9 | Remove stop plug, attach suction line (3) and pressure line (4) to expansion valve (1) and tighten nut (2) | Replace sealing rings and moisten thread with compressor oil. | |
Nut on expansion valve | |||
10 | Install wiper system | ||
11 | Evacuate front air conditioning system, refill it and check for proper operation and leak tightness |