Club 80-90 Forums

Hi there, in 2003 I fitted an AAZ engine in place of a 1.6 NA diesel lump (CS). All worked brilliantly for 13 years up until a few days ago when there was a problem. Anyway, I am now looking at some jobs I should have done a long time ago. One was to fit an electric water pump as fitted to the JX (1.6 TD variant). Apparently this can run on to circulate water after the engine stops and also assists at low revs.

I can buy the pump quite cheaply here (non-genuine part): https://www.vwheritage.com/shop/251965561B#esp_pg=3.

It also needs a temperature sensor https://www.vwheritage.com/shop/251919521#esp_pg=2 although I am not sure where this screws into.

Can anyone give me a steer - with photo's ideally - or link to a wiki to show:

- How and where the pump is mounted physically.
- The water pipe arrangement.
- Where the temperature sensor fits.
- Wiring details - is there capacity in the CS loom or is extra wiring required?

Many thanks.

did you ever find any info on this?

Yes, all done. I bought the pump on eBay IIRC along with a mounting bracket. I bought the sender unit from some VW online shop. I also bought a JX wiring loom from someone on here. I discarded most of it but used the relevant lines and connectors. I can't remember if I used his old relay or bought a new one. I also changed some of the hoses.

I've no idea if it ever comes on but it's easy to test by shorting out the sensor line onto the engine block.

Now I can sleep at nights.