Cooling System Problems; Refrigerant Leak; Odors - BMW 1999-2005 M3 Service Manual

Heating and Air Conditioning
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Noisy or seized compressor
Noisy compressor clutch
Malfunctioning belt
Diagnosis of noisy engine compartment
components is covered in
Engine–General. A/C belt replacement is
covered in 020 Maintenance.

Cooling system problems

Coolant problems
Cooling fan problems
Cooling system pressure testing and
other diagnosis is covered in
Radiator and Cooling

Refrigerant leak

Use diagnostic equipment to pinpoint
refrigerant leaks. Replace leaky
components or seals.
Note:
Diagnosis of A/C system components is
beyond the scope of this manual. Follow
the equipment manufacturer's
instructions.

Odors

MIldew in the IHKA housing and in the
evaporator fins can cause strong odors.
Working under right side of dash,
remove blower fan resistor pack (arrow)
as described later in this repair group.
100
170
System.
2/25/2009 11:16 PM