C5 Hatchback

[mlkey]

Hi,

 

I have just collected an 04 plate C5 2.0i 16v auto SX. I spent a good hour checking it over before I purchased it, everything seemed fine. Today I have noticed that when unlocking the car with the keyfob, or when opening the drivers door, the tailgate pops open. I have searched the forum, but can only find this fault relating to the estate version. Being as the hatchback does not have the dropglass, I am assuming that it also does not have the offending switch. I have tried disconnecting the battery and reconnecting it, but the problem returned within a minute or two.

 

I would be grateful for any suggestions.

 

Thanks.

[paul.h]

Could be a problem with the switch on the hatch, dirty contacts, contacts stuck together, dirt on the switch. On ours it only takes a slight touch to unlock, maybe it needs freeing off/dirt removing from the outside. When you unlock the doors can you hear the hatch unlocking as when you push its switch ? If not the switch then maybe the wiring to the switch is earthing and causing the lock to open - Haynes shows the switch simply earths its supply wire. If you disconnect the switch it will show if it is the problem. A likely place for a wiring fault would be where the wires go between the body and the hatch.

[mlkey]

SOLVED :unsure:

 

Thanks for the reply. Had the switch out and found moisture trapped between the connector and the base of the switch. Cleaned it all and applied WD40, good as new :)

 

Thanks.