Nice one, it's a great feeling knowing that you've kept the money in your pocket and done it yourself :bannana: I did a similar thing a few years back on my XJ6, that had 2 of the damn things. When one went I managed with the other one but when the second one went I had to do something. Replaced two relays and capacitors (was walked through it by a fantastically knowledgeable American guy on a Jag newsgroup), replaced the brushes with new ones, bought for a couple of quid, meant for power tools and cleaned and lubricated the insides of them. Absolute swine to get in and out though, had no skin on my hands afterwards so don't envy you getting all the gubbins back in again.
Cheers
Andy