A/C Compressor Clutch, Checking

On vehicles up to VIN G 004 657
- check A/C compressor clutch for the following:
^ heat discoloration
^ eccentric rotation (moving as though off-center)
^ improper mating between clutch and pulley surfaces
^ incorrect air gap between clutch and pulley

WARNING

Make air gap measurement only when engine is not running

A/C COMPRESSOR:

- measure air gap between A/C compressor clutch and pulley
^ a = 1.5 mm + 0.6 mm If air gap is not within specifications, - replace A/C compressor clutch

If A/C compressor clutch shows any sign of:
^ heat discoloration
^ eccentric rotation
^ improper mating between clutch and pulley surfaces
- replace A/C compressor and clutch with newer style components

Note

Improved A/C compressor with clutch is identifiable by a green paint mark on the compressor housing.