fabiamk2

I have a 2012 skoda fabia 1.2 greenline diesel The car has developed a fault whereby randomly every few trips the brake pedal will be go randomly very soft and brake power reduced and once pressed again straight after it firms up. Its been doing this once every few trips. No brake fluid loss and have tried pumping brakes whilst the car is off and it holds pressure. My local garage don't want to touch the car anymore. Obviously as its brakes it's not something I want to leave but due to how intermittent it is its baffling me. Anyone had this issue before. Was thinking maybe a sticking caliper due to how intermittent it is? Anyone got any advice or had similar? I did once have the ABS light come on when a tyre pressure sensor came on due to rim leak but once tyre pumped up it went off and hasn't been seen since so no idea if that's anything to do with it.

Just updating this incase anyone else find this fault. Took car to battery specialist who said the battery was knackered. Got a new battery but the error code persisted on startup and stop start didnt work. Went back the next day and they did a full fault diagnostic scan and wiped all the faults and now it's no longer showing the fault code. So get a new battery but make sure they wipe all the codes after the new battery is installed. Thanks to those who replied

Forgot to say: Put an obd2 scanner to it and showed no errors

I bought a skoda fabia 2012 1.2 diesel yesterday. 70000 miles and good history. During test drive the stop start was working fine. Gave the car a 30 mile drove home and all fine. It is now showing a stop/start error message on the dash when I start it up. I don't care about stop start but I'm worried this might be the start of a bigger problem. It drives fine otherwise. The car was bought private with no warranty etc. I would think it might be a poor battery but issue only raised after a long drive which should have charged it? Anyone got any advice?