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S40 Low Brake Fluid

I am experiencing an issue with my 2003 Volvo S40 diesel. The brake fluid level is consistently low, and I'm getting strange feedback from the brake pedal. The car has 136115 km on the clock. I have inspected the visible brake lines for leaks, but found nothing obvious. Could this be a master cylinder issue, or should I be looking elsewhere?

The issue with the 2003 Volvo S40 diesel involved consistently low brake fluid levels and unusual brake pedal feedback. Initial inspections showed no visible leaks in the brake lines, leading to concerns about the master cylinder. However, the problem was ultimately traced to severely worn front brake pads, which caused the fluid level to drop. Replacing the worn pads and rotors resolved the issue.

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4 comment(s)

Low brake fluid is never good. Have you checked the brake pads themselves? Worn pads will cause the fluid level to drop as the calipers extend further.

Yes, I considered worn pads. Given the symptoms, would worn pads alone typically cause such a significant fluid drop, or should I be more concerned about a potential leak within the hydraulic system itself?

Seen it plenty of times. Worn brakes will drop your fluid level quick. If it were me, I'd check those brakes and go from there.

Thanks for the advice. It turned out to be severely worn front brakes, as you suggested. The repair cost 480€ including new pads and rotors. I appreciate the pointer.

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VOLVO

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S40