Hi folks , so here I am sitting with the engine off and there is a clicking noise (a bit. Like a motor) comming from driver side rear quarter behind panel , it slows then speeds up intermittently

just had a look, it does have a throttle cable. thanks for the help guys . its my first disco so i will be on here alot lol . much apreciated cheers.:D

thanks for the replies guys,still not sure if it is tweakable.cant see a part nmbr.any advice on how to identify it would be great thanks.

In search of enlightenment, I have a 95.300 tdi , it has an electrical connection is this pump tweakable ?. Thanks people