A3 Quattro V6-3.2L (BUB) (2008)
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Clean thread on A/C compressor shaft - B - and the three threads in belt pulley - A - of old bolt locking compound (for example, using a thread
tap).
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Check the splines on the A/C compressor shaft - B -. If the splines are showing wear, then replace the A/C compressor.
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Check the splines on the drive plate - C -. Replace the drive plate if the splines are showing wear.
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If necessary, install belt pulley and the corresponding circlip. Refer to=> [ A/C Compressor Belt Pulley, Zexel/Valeo ] See: A/C Compressor Belt
Pulley, Zexel/Valeo.
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Coat splines on A/C compressor shaft - B - and drive plate - C - with sealant "D 154 102 A1".
‹› Apply sealant sparingly all around, making sure that no sealant reaches the A/C compressor shaft seal - B - (in the A/C compressor).
‹› The sealant is also an adhesive, after hardening the drive plate can no longer be removed.
‹› The sealant hardens within a certain time period, therefore mount the drive plate within 5 minutes after coating splines with sealant and tighten
bolts - C - and - B - to the specified torque. Refer to=> [ A/C Compressor Belt Pulley, Zexel/Valeo ] See: A/C Compressor Belt Pulley,
Zexel/Valeo also within this time.
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Install the remaining removed components again in reverse order.
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Wait one hour (from mounting the drive plate) before starting the engine.
‹› Sealant requires approximately one hour to attain the necessary rigidity.