AR83.30-P-5520G | Remove/install expansion valve | 15.11.11 |
MODEL 170
with CODE (580) Air conditioning (or Tempmatic for USA)
with CODE (581) Automatic air conditioning
P83.30-0586-06
1 Hexagon nut
2 Pressure lines retaining plate, front side
3 Screw
4 O-rings
5 Expansion valve
6 Pressure lines retaining plate, rear side
7 Pressure lines, rear side
| Remove/install | ||
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. | |
| Procedure for a damaged or leaky air conditioning system | ||
| Protect air conditioning circuit and components from moisture when carrying out repair work | All models with air conditioning | |
| Notes on handling R134a refrigerant | All models with R134a refrigerant | |
1 | Drain air conditioning system (recycle refrigerant), evacuate, fill, inspect for leaks | When filling air conditioning, feed extracted quantity of compressor oil back into refrigerant circuit | |
2 | Unscrew hexagon nut (1) | | |
3 | Detach pressure lines | Seal openings (parts kit), replace O-rings (4) (moisten with compressor oil) | |
4 | Remove screws/bolts (3) (2x) | | |
5 | Detach expansion valve (5) from pressure lines (7) | Seal openings (parts kit), replace O-rings (4) (moisten with compressor oil) Installation: To avoid tilting, tighten screws/bolts alternately. | |
6 | Install in the reverse order | ||
7 | Replace fluid reservoir | ||
8 | Switch on the air conditioner and allow the engine to idle for roughly 4 minutes. | Set temperature selector wheels to blue Blowers to max. | |
9 | Check air conditioning for proper operation | The air outlet temperature at the center air vent must not fall below 5 °C, if necessary | |
perform diagnosis according to diagnosis manual | |||
10 | Inspect the air conditioning circuit for leaks | Air conditioning system leak detector |
Air conditioning