cupra central locking

[cupraspark]

Hi all my central locking has stopped working when you lock the doors with the key or key fob there's nothing.
Iv'e checked fuses ,OK
checked vac pump removed wiring clip reconected it and it fired up but made a bad clicking noise for about 20 seconds then shut down, tried to unlock doors nothing then i removed the wiring clip to the pump and it did the same thing again.
Does any one think its the vac pump which is faulty?
Thanks Marc

 

[Fl@pper]

if vac pump is working for 20 sec then cuts off then its working fine

sounds like you have a leak in the pipes so disconnect them and test in turn

system is pneumatic and runs on air pressure regulation, if it's locking then unlocking again then it is sensing a jammed lock somewhere that is building up pressure too quick

check out the pump in the driver rear 1/4 and unplug em to test each circuit to narrow it down

there's loads of threads listing what does what and others solutions/problems too

from the junction in the OSR 1/4 (behind the rear lamp)

red is fuel flap solenoid (common to leak)
blue is doors
black is boot lock
green is supply from motor to junction pipe

pop em off one by one and test by suck/blow down em doesn't take much pressure to make em work and a scrap bit of washer pipe or fuel hose is handy unless you can squeeze a small childs head in the corner as i had no pipe to hand

 

[cupraspark]

Thanks mate found out there was a small hole in the fuel lock actuator rubber boot covered hole job done working fine.)

 

[Fl@pper]

woohoo