BMW X5: Drawing Off, Evacuating And Filling A/C System (R 134A)
WARNING: Refrigerant circuit is under high pressure! Repair work may only be carried out on a DEPRESSURIZED refrigerant circuit! Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a.
Follow safety instructions for handling refrigerant oil.
IMPORTANT: Risk of damage! Restart engine only when A/C system has been correctly filled.
NOTE: Draw off, evacuate and fill the A/C system in accordance with the operating instructions of the relevant service station.
E60 only: If necessary, to connect service station, use manufacturer's adapter for high-pressure connection (red).
Instructions for drawing off A/C system:
To help separation of refrigerant and refrigerant oil, run engine at low speed (800-1200 RPM) and with A/C system turned on for a few minutes.
The limits the entertainment of refrigerant oil while it is drawn off.
Drawn-off refrigerant oil must be changed and reintroduced via the service station.
If at the end of the drawing-off procedure the service station moisture indicator shows that the drawn-off refrigerant is excessively moist, clean the refrigerant in accordance with the service station operating instructions.
Recycling:
Dispose of drawn-off refrigerant oil as hazardous waste.
Observe country-specific waste-disposal regulations.
Instructions for evacuating off A/C system:
The evacuation procedure removes all traces of ambient air, water vapor and any other gases present from the A/C system. This enables subsequent system filling with refrigerant.
A decrease in the vacuum level indicates a leak in the refrigerant circuit.
Instructions for filling A/C system:
Before filling with refrigerant, top up the refrigerant oil entrained during drawing off.
Follow instructions for opening and replacing parts in refrigerant circuit! Depending on the type of component replaced on the A/C system, it may be necessary to top up the refrigerant oil, even if no measurable losses have occurred during drawing off. Read and comply with the A/C system manufacturer's notes in this regard and the operating instructions of the relevant service station.
Information on the required refrigerant fill quantity for the entire A/C system is contained on the rating plate (1) in the engine compartment.
Installation:
Reseal refrigerant filler necks on vehicle with sealing caps.
Fig. 80: Identifying A/C System Is Contained On Rating Plate
READ NEXT:
Instructions For Opening And Replacing Parts In Refrigerant Circuit
WARNING:
Avoid contact with refrigerant and refrigerant oil
Follow safety instructions for handling R 134a refrigerant.
Follow safety instructions for handling refrigerant oil.
CAUTION:
Cleaning Evaporator
Special tools required:
64 1 300
WARNING: When handling cleaning agent, observe following protection
measures:
Wear protective rubber gloves and protective goggles.
If cleaning agent comes into c
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Fuel System - E32 With M60
Fig. 16: Identifying Fuel System - E32 With M60 Components
If any of these items are leaking and fail to hold pressure in the fuel rail,
the vehicle will be difficult to start.
The cranking time will be excessive and possibly not start at all. For example,
If the fuel injectors are leaking,
the
Checking Absolute Compression Of All Cylinders
Diagnosis and Information System (DIS)
Fig. 4: Identifying Diagnosis And Information System (DIS)
Necessary preliminary tasks:
Remove acoustic cover. Unfasten screws. Raise acoustic cover and remove
towards front.
Remove right ignition coil cover.
Connect DIS Tester.
Test:
Call up Diagnosi
