Brake Booster/Master Cylinder

The Brake Booster and Brake master cylinder are two different though allied components.

The brake booster is attached to the firewall, the brake master cylinder is attached to the brake booster.

The brake booster is fed vacuum from the inlet manifold to amplify the pressure exerted by the driver when he/she presses the brake pedal. That force is then used to push the pistons inside the brake master cylinder to push the hydraulic brake fluid out to the Brake calipers (being a modern Volvo you have 4 wheel disc brakes, each with a caliper to hold the brake pads) to effect braking. Note: I have deliberately ignored describing the ABS (Antilock Brake System)part of the brake system for clarity sake.

If there is a service recall on the brake master cylinder I would certainly go to my nearest Volvo dealer and get it done.

If your question is related to getting compensation for work done to the brake system prior to the recall notice, then you may have half a chance except you have left it a bit late to pursue. That of course depends on the relevant local consumer laws and regulations in effect where you live.

Recall DateMAR 29, 2007

Model Affected2003 VOLVO S60

DescriptionCERTAIN CARDONE MASTER CYLINDERS WITH DATE CODES LOWER THAN DCA7078 SOLD AS REPLACEMENT EQUIPMENT FOR USE ON THE VEHICLES LISTED ABOVE. THE SEAL ON MASTER CYLINDER CAN FAIL AND LEAK BRAKE FLUID.

ConsequenceLOSS OF BRAKE FLUID CAN RESULT IN POOR BRAKING PERFORMANCE, POSSIBLY RESULTING IN A VEHICLE CRASH.

RemedyCARDONE WILL NOTIFY OWNERS AND OFFER TO REPURCHASE ANY DEFECTIVE MASTER CYLINDERS. THE RECALL BEGAN DURING APRIL 2007. OWNERS CAN CONTACT CARDONE AT 1-800-777-4780 begin_of_the_skype_highlighting 1-800-777-4780 end_of_the_skype_highlighting.

Potential Units Affected13128

Notes