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isabellschmid56

Citroen C5 brake booster pressure sensor issue

I'm experiencing an issue with my 2021 Citroen C5 hybrid, which has 136708 km. I'm getting an error message on the speedometer, and the braking is poor. Diagnostics show an error related to the brake booster pressure sensor. Could this be from incorrectly bled brakes?

4 comment(s)

uweraven5

I had a similar issue with my Citroen C5 some time ago. Same symptoms: error message and weak braking. In my case, the ABS system was involved. Did you check the hydraulic brakes?

isabellschmid56 (Author)

Thanks. Could you elaborate on which component of the ABS system was the problem? I'm trying to narrow down what it could be.

uweraven5

I can't recall the exact component, but the workshop mentioned the brake booster pressure sensor and the ABS module needing recalibration. Given your symptoms and the diagnostic code, it's likely the same issue. I recommend visiting a workshop with diagnostic tools.

isabellschmid56 (Author)

Thanks for the advice. It was the brake booster pressure sensor, and it was due to incorrectly bled brakes, as suspected. The repair cost 90€. Appreciate your help!

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