Thanks for the great guide, however when I rang Ford they had no clue what Relay 30 was and were less than helpful, they told me to ring Bosch or some other Relay Manufacturer. When I took out the relay I noticed it had VW and audi symbols stamped on it and the number - 165 906 381. Ebay give alot of used results for that part number as Relay 30, however I phoned my local VW garage who were very helpful and ordered one in for me tomorrow. BTW part is £13 + VAT from VW