Engine Fan Relay

[jned2]

Looking to replace The Engine Fan Relay on my 1990 S3. Can't to find a part number or where they might be available. It's a 5 prong relay. Any help gratefully appreciated.

[jned2]

The relay I'm after is the same as in phillpot's picture but with an additional connector in the middle 87A; i.e. the same as TwinKam type B. I presume that if I follow phillpot's advice and go to any decent motor factor then I should be able to pick up what I'm after, or are they available elsewhere? Many thanks.

[jned2]

Quick update. In the product information for the 5 pin relay recommended by phillpot above it states that the terminal configuration is Type B, which is what I'm after. Once again many thanks.

[jned2]

Relay arrived today, fitted it and took the car for a spin to get the temperature up, the fan kicked in just below the red line, great news. Quick question - apart from old age why would a relay fail?