940 L4-2.3L SOHC VIN 88 B230F (1992)
C4. Inspect piston dust seals
Replace seals if in poor condition.
When replacing seals, inspect pistons for oxidation or other conditions which may require reconditioning of caliper.
C5. Inspect rubber gaiters on guide sleeves (pins)
Replace gaiters if in poor condition.
Note: Illustration shows caliper with gaiters and guide sleeves of earlier design.
C6. Lubricate guide sleeves (pins) and reinstall in caliper retainer
Use grease, P/N 11 61 825-4.
C7. Inspect disc friction surface and measure disc thickness
Replace disc if component shows signs of severe wear, distortion, variation in thickness or other defects.
Brake disc thickness mm (inch)
New disc: Min. recommended disc thickness when replacing pads; absolute min. thickness
