Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

Complaints
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A/C compressor makes noise
- Re-tighten securing bolts for A/C compressor and A/C
compressor bracket using a torque wrench.
- Check routing of refrigerant pipes; they must not touch
other components and must not be subject to strain (align if
necessary).
Noise (refrigerant hammer) occurring immediately after
switching on air conditioner and/or when cornering or
braking:
- Discharge, evacuate and re-charge refrigerant circuit (too
much refrigerant in circuit).
Note:
- Too much refrigerant oil in the circuit may also result in
this problem (no adjustment of refrigerant oil quantity, for
example, on replacing compressor).
Water sprays out of vents (in dash panel or footwell)
although air conditioning system is otherwise
functioning properly:
- Check proper routing of condensate drain; it must not be
crushed or kinked.
- Check valve for condensation water hose, it must not
become stuck by wax or underbody sealant and must open
and close properly.
- Check plenum chamber cover; it must not be damaged
and must be properly installed (to stop water running into
evaporator).
- Check water drains in plenum chamber; they must not be
blocked (e.g. by leaves).
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13/2/2005