Ok, if your starter just clicks intermittently when you try to start it, the chances are it is the solenoid contacts that have worn. This is quite an easy and cheap fix, £13.50 for parts against £120ish for a new starter. I removed my starter a couple of weeks ago to get the serial number from it (needed to order the parts) and I cleaned all the old worn contacts before I temporarilly refitted it whilst I waited for the new parts to arrive. The starter worked fine for a couple of weeks, but then started playing up again, so with my new parts to hand I took it off again.
The whole job from start to finish took me just an hour, and that included taking photos.
Step 1: Disconnect the Battery
Remove these 2 bolts.
Step 2: Remove Airfilter Box
Remove the 2 airfilter box nuts, and the 1 at the rear of the box.
Unscrew the clamp around the pipe, also remove the electrical connector from the top of the filter.
Remove the complete air filter box from the car.
Unscrew the clamp around the turbo inlet and remove the hose.
Warning, whilst this is removed be very careful no debris enters the Turbo Inlet!
You can now see the starter!
Step 3: Remove the starter
This is hard to see because of the location, but at the back of the starter are 2 electrical connectors.
1 is a simple push fit trigger lead, and the other is the main battery lead and is secured by a 12mm nut. Remove both of these, be careful not to lose the 12mm nut!
Remove the 2 (mine only had 2 bolts, not sure if this is the norm because there is a 3rd hole??) 17mm bolts that hold the starter. 1 is on the top and can be easily seen (see previous photos) but the 2nd is underneath and cant be seen without a mirror, but can be felt.
Now the starter is loose, and with a bit of jiggling, it can be removed from the car.
Step 4: Remove the Solenoid
Remove the nut
and this one too.
Remove these 3 screws,
and remove the end cap.
Remove the Solenoid push rod, be careful not to lose the spring!
Next remove the 2 nuts holding the connectors, take note of the positions of any washers, spacers etc.
OLD vs NEW
Step 5: Refit New Parts
Refit is reversal of removal, using any new parts/washers etc supplied in the kit.
Be very careful to refit all washers and spacers in the correct order, otherwise a short circuit could occur.
Fit the new push rod and then refit the end cap. refit the nuts and cable to the electrical points.
Ok, now the starter is done, if you are happy it has all been put together correctly you can refit it back onto the car. getting the starter back in position can take a bit of jiggling about to get it lined up.
Once ALL removed parts are refitted, reconnect the battery and test your starter. Job Done.
I'm not sure if the starter can be removed any easier from underneath the car, but I found this way pretty easy.