Hi does anybody know a part number or a replacement part for a broken air connector on the central locking system or how best to repair them, the pump is over running due to broken connector in the rear door.

First welcome to the forum.

 

Have a look at this https://volkswagen.7zap.com/en/rdw/polo+derby+vento-ind/po/1998-158/8/862-862000/#6

thanks great web site,

 

the part shown is only the elbow, and when i google the part number is not the part i need, mine seems to have a connector on the end of the elbow.

 

 

Found this  8D0 862 245  looks like the correct end fittings 

thanks looks possible just need to try and find a stockist

It will be a dealer part but don't use your local Stealership try TPS as they are a bit more friendly to older car parts