AP83.00-M-8352D | Air conditioning system - function check | 3.6.05 |
MODEL 905.613
Sprinter Classic 2+2 - 6.34 t minibus,
with Hispacold 5 D roof air conditioning
M83.50-0066-11
1 Air conditioning operating unit
2 Blower stage button
3 Temperature selection indicator lamp
4 Air conditioning indicator lamp
5 Blower stage II indicator lamp
6 Blower stage I indicator lamp
7 Temperature selection button
8 Air conditioning button
M83.50-0065-11
9 Air outlet opening
Prerequisites for testing | |||
1 | Park the vehicle in the shade with its windows open | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near engine | Secure vehicle to prevent it from moving. | |
2 | Start vehicle engine and allow to idle | ||
| Check refrigerant compressor | ||
3 | Press air conditioning button (8) on air conditioning operating unit (1) | The air conditioning indicator lamp (4) must light up. | |
4 | Set max. cooling output at temperature selection button (7) | All temperature selection indicator lamps (3) must light up. | |
5 | Check magnetic clutch at refrigerant compressor | When the engine is running and the air conditioning is switched on, the magnetic clutch at the refrigerant compressor must rotate. | |
| Check condenser fans | ||
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. | ||
6 | Check condenser fans on vehicle roof | The condenser fans must rotate when the air conditioning is switched on. | |
| Check refrigerant level | ||
7 | Switch on blower stage II at blower stage button (2) | The blower stage II indicator lamp (5) must light up. | |
8 | Check refrigerant level in inspection glass | ||
| Check passenger compartment cooling capacity | ||
9 | Switch on blower stage I at blower stage button (2) | The blower stage I indicator lamp (6) must light up. | |
10 | Measure temperature at one of air outlet openings (9) at vehicle center | After approx. 5 min the temperature of the air flowing in has to be 7 to 10 °C below the temperature of the air suctioned in. Check air temperature sensor Check low pressure switch Check high pressure switch - subject to separate repair order. | |
| |||
11 | Measure and compare temperature at one air outlet opening (9) on both right and left side of vehicle | If the air outlet temperatures are different: Check evaporator fans - subject to separate repair order. | |
| |||
12 | Turn off engine |
Commercially available tools
Referenced documents
- ap8330m8312d Air conditioning system - check refrigerant level
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as6500z000201a Risk of death caused by falling from vehicle roof. Risk of injury to other persons caused by falling objects during work in roof area.