Fault: Electronic Parking Brake Release

[Equalizer]

Hello.

Today my Leon shown me an error code connected with electric parking brake. OBD 11 told me, that this is an C100C01 error code. What should I do? It is described as problem with the button inside.

 

[dan.cupra]

Came across this error myself as well but only while scanning and nothing in the dashboard (so far).
What I would personally do, if the parking brake works but you still get the error from time to time just clear the error and move on (until the error pops up when starting the engine and stays there).

If the parking brake doesn’t work, then you might have to replace the parking brake button. Details here:

 

[Mr Pig]

I don't think I've ever scanned one of the Leons without getting a code or two. There are so many stupid sensors on modern cars that there'll pop a code if the driver farts! Unless you're seeing an actual problem, I'd clear the code and forget about it.

 

[ViperSlider]

Came across this error myself as well but only while scanning and nothing in the dashboard (so far).
What I would personally do, if the parking brake works but you still get the error from time to time just clear the error and move on (until the error pops up when starting the engine and stays there).

If the parking brake doesn’t work, then you might have to replace the parking brake button. Details here:

The EPB button is a fickle beast that can get battered with liquids and general crust over time and get issues but that's not the only reason that fault code can be present.

I've repaired a dead EPB button issue that a garage couldn't find after they replaced the button and the fault remaining, turns out there was water ingress in the passenger footwell and this caused the black T17g plug at the bottom of the A-pillar to become corroded and this is a junction point between the EPB button and ABS unit. The ABS unit wasn't getting signals from the EPB button as the pins we're corroded.

If you do start getting functional issues with the button and replace it and the fault doesn't clear then check the passenger footwell.

 

[dan.cupra]

@ViperSlider thanks for sharing your experience. Some things can be fixed super easy while others require more work.