I have just today finished doing the job - thanks for everyones advice.
Let me write down a few observations while it is still fresh in my mind:-
Firstly I removed the 2 side trims either side of the windscreen - the screws are hidden under the front edge of the door seal. The trims are then left hanging down from the top of the door seal rubber. Care is needed.
On mine the trims were full of mud and leaves and I had to replace the foam strips which seal the side trims to the windscreen. Also the door seal had partly unglued from the body so I had to re glue it back in place.
Each of the clips holding the top trim in place can be slid to one side with a credit card as Rave says. They must be slid from the RHS to LHS using the credit card between the body and the top trim. Each one only needs to move an inch or so to disengage from the body. It is necessary to remove all of them. It is far easier if you have a sun roof. Mine didn't. Once it is off you can see clearly how it is attached. The body shell recess where the windcreen fits has what can be described as "nail heads" which the plastic clips lock onto. There are 10 clips in total not 8 as Microcat says.
The way I fitted the new top trim was to fit the new clips to the body first. Then press the new top trim into the clips from the middle out. It makes a nice click as you press the trim down into each clip. My new trim was also convieniently marked with two pencil marks which lined up with the outer edges of the roof channels. I removed the adhesive strip last after it was clipped in.
One thing that did go wrong whch you should be aware of is that I broke one of the "nail heads" off at the extreme edge on the drivers side. The clip wasn't lined up properly and I used too much down force trying to press the trim into the clip.
The side trim covers it up but I will need to go back and use some black windscreen adhesive (recommendations?).
The job should have taken 1 hour but ended up taking 3 hours.
Finishing strip is LDCB101380 (£36.75 +VAT). Clips are LDCE10038L - 10 required.
Dave
