Tech Tip: Volvo Brake Goes Too Low on First Application
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Tech Tip: Volvo Brake Goes Too Low on First Application

If a customer complains of Volvo brakes going too low on first application, it may be because of improperly installed brakes or aerated fluid.

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Vehicle Applications:

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1999 S80 2.9L, Vin 97, Eng Des B6304S, USA/Canada
2000 S80 2.8L, Turbo, Eng Des B6284T, USA/Canada
2001 S60 2.4L, Turbo, Eng Des B5244T3, USA/Canada
2002 S60 2.4L, Turbo, Eng Des B5244T3, USA/Canada
2002 S80 2.9L, Vin 91, Turbo, Eng Des B6294T, USA/Canada
2003 V70 2.4L, Turbo, Eng Des B5244T3

 

Customer Concern: On first application the brake goes low, almost to the floor; after that the brake is OK.

Potential Causes: Improperly installed brakes; ­aerated fluid.

 

Tests/Procedures:

1. Check brake clips for proper installation. A mis-­installed clip will cause this problem. The bottom of the clip should go around the bottom of the caliper bracket.

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2. Check for any air in the hydraulic system. Try bleeding with a pressure bleeder.

3. Bleed at the ABS hydraulic unit lines. Sometimes air can get trapped in this area, which is under the master cylinder.

Courtesy of Identifix, Inc.

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