Plunger switch at front of engine bay

[Lewes96]

Can anyone tell me what the small plastic plunger at the front of the engine bay just under the bonnet does? Mine has lost the little grey collar round it ( assume I leant on it accidentally ). It still goes up/down but I would like to get a new one as it is a bit wobbly, but I'm not sure what I'm after.

[micheal balbrig]

Maybe connected to alarm system !!??

[Lewes96]

Mine is an aftermarket alarm and this looks like an original fitting of some kind, so don't think it's an alarm.

[Guest 2]

any part numbers on it? maybe upload a pic.

[Lewes96]

28325 This is the plunger. I will upload another one as well

[Lewes96]

28326Another view

[Guest 2]

probably some sort of switch which tells the car the bonnet has been closed i would've thought?

[zollaf]

thats an aftermarket switch for the aftermarket alarm. the original bonnet switch is part of the bonnet latch.

[zollaf]

you can tell its not original cos vw wouldn't have used a woodscrew.

[Lewes96]

Thanks