dirkblade8
UrbanCruiser low brake fluid and pedal feel
Summary of the thread
The 2011 Toyota UrbanCruiser experienced low brake fluid levels and unusual brake pedal feedback. Initial checks showed no visible leaks, leading to the suggestion that worn brake pads might be the cause. Worn pads can cause caliper pistons to extend further, using more brake fluid and affecting pedal feel. The solution involved replacing the brake pads and discs, which resolved the issue.
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4 comment(s)
dirkblade8 (community.author)
Thank you for the insight! I'm not very mechanically inclined, so I hadn't considered the brake pads themselves. If the brake pads are worn, would that really cause such a noticeable drop in the fluid level, and also affect the pedal feel so drastically?
denniswilliams10
Yes, absolutely. As the brake pads wear down, the caliper pistons need to extend further to compensate, occupying more volume within the brake system. This increased volume is filled by brake fluid from the reservoir, leading to a lower fluid level. Also, severely worn pads can sometimes cause uneven pressure distribution, leading to the strange pedal feel you described. Considering your lack of expertise, I'd suggest visiting a reputable workshop to have the entire brake system thoroughly checked. It could save you a lot of trouble and guarantee your safety.
dirkblade8 (community.author)
Thank you very much for your help and advice! I took the UrbanCruiser to a workshop and, as you suggested, the brake pads were worn. Replacing the pads and discs, plus a fluid change, cost 480€. Now the brakes are working perfectly again.
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TOYOTA
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URBANCRUISER
denniswilliams10
I had a somewhat comparable situation with my old 2014 Opel Astra a few years back. A strange brake pedal feel and a gradually decreasing brake fluid level were the initial symptoms. It turned out that the brake pads were worn to the point where the brake calipers' pistons had to extend much further than usual to maintain contact with the brake discs. This extended travel requires more brake fluid from the reservoir, eventually leading to the low fluid level. It might be worth inspecting the pads and discs before assuming the worst.