S4 V8-4.2L (BHF) (2004)
Compressor Pulley: Service and Repair
Belt Pulley, Removing From Compressor and Reinstalling (Version "1")
Belt Pulley, Removing From Compressor And Reinstalling (version "1")
NOTE:
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If the pulley overload safeguard has been triggered, check freedom of movement of the compressor before replacing the pulley. Replace entire
compressor if it is stiff.
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Operation of pulley overload safeguard 240 Audi A2
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Depending on engine version, removal of pulley may involve separating compressor from engine.
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The compressor can be removed from the bracket and reinstalled without opening up the refrigerant lines.
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Before removing, mark direction of ribbed belt with chalk or felt-tip pen. Running a used belt in the opposite direction could destroy it.
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Different compressors are installed depending on engine and country version (installed to right or left of engine, 6-cyl. gasoline engine, cold or hot
country).
Removing
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Remove noise insulation.
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Move lock carrier to service position.
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Loosen and remove ribbed belt.
Belt pulley, removing from compressor and reinstalling (version"1")
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Remove bolt - A - (tightening torque 20 Nm).
NOTE:
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If pulley cannot be removed with compressor in position, separate compressor from engine.
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When loosening off and tightening bolt -A-, provide support with commercially available pin wrench - C- (pin diameter 5.0 mm) at drive plate
- B -.
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Bolt -A- must be replaced (because of locking fluid).
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Carefully and evenly pry off drive plate - A - using 2 screwdrivers - B -.
NOTE:
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When prying off drive plate -A-, take care not to damage collar of pulley - C -.
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There are different types of pulley - C - and drive plate -A-. Attention must therefore be paid to precise assignment.