Tipo Brake Fluid Loss

Low fluid with no visible leaks and strange pedal feel? That sounds ominous. Are you sure there are no leaks from the master cylinder into the booster? That's a classic symptom. When was the last time you had a thorough brake inspection, including pad thickness and rotor condition? If the pads are excessively worn, it would account for fluid loss as the calipers extend further. Have you performed a complete fluid replacement recently?

Good shout on the master cylinder into the booster – hadn't considered that specifically. I'll check that properly. The brake inspection was about 20000 km ago, so probably due another one. If it is the pads, would that really cause the fluid level to drop that quickly without triggering the brake warning light? What volume of brake fluid loss are we talking about when pads are worn?

Yes, a failing master cylinder is a likely cause! Regarding pad wear and fluid levels, it depends on how worn they are and the size of the system. Significant pad wear definitely contributes to fluid displacement as the caliper pistons extend to compensate. The warning light is triggered by a critical low level, not gradual loss. Given the symptoms and mileage, I strongly suggest a professional inspection. It's always best to err on the side of caution with hydraulic brakes.

Thanks for confirming my suspicions! After checking the master cylinder and confirming no leaks there, I took it to the workshop. Turns out it was the worn brakes after all and needed a brake inspection. New pads and rotors all around, plus a fluid flush. Cost me about 480€, but worth it for peace of mind.