BELT PULLEY, REMOVING AND INSTALLING, "Delphi/Mahle" A/C COMPRESSOR
WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
- The belt pulley is sensitive to impact. Handle it with special care.
- If the drive plate overload protection was activated, the belt pulley can be rotated using the outer part of the drive plate so that the A/C compressor shaft does not rotate.
The belt pulley on "Delphi/Mahle" A/C compressors currently cannot be replaced separately. If there is a complaint, replace the entire A/C compressor.
-- Replace the A/C compressor. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING .
Belt Pulley Version "1"
- The belt pulley on the "Delphi/Mahle" A/C compressor version "1" is currently identical in construction to the belt pulley on the "Sanden" A/C compressor. Refer to OVERVIEW - BELT PULLEY, SANDEN A/C COMPRESSOR (vehicles with 4-cylinder engine). However, the drive plate is secured with a self-locking bolt -item 2- to the A/C compressor shaft.
Belt Pulley Version "2"
- The drive plate -B- is bolted to the A/C compressor shaft with the bolt -A- (tightening specification: 20 Nm).
- The spring elements (overload protection) -C- on the drive plate -B- will loosen when the torque is too high (for example, if the A/C compressor runs with resistance) and the belt pulley -D- runs freely without driving the A/C compressor.