Martin, I did this replacement on some cars, but I hate all the work in small room of the engine compartment. I removed the engine (with bolt on transmission), did all the work and put it back. (First time for removing and putting it back was 10 hours, now I need 5 hours). If the engine is out, you can fix and clean a lot more things. Pictures from my first 'engineout' on http://www.steinerklaus.de/dmc/engine00/index.htm Just my 2cents. Klaus Steiner Germany #05980