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. | |
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12 | Turn off engine |
Commercially available tools
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