Hi Steve,

Thanks for your reply.

I think im just going to go ahead and give it a go. I found this link to a MB forum where some one has done it on an E320 - Slightly different i know but is the closest i have found with decent descriptions and pictures. Gave me a little confidence.

How to replace R/H catalytic converter - Part 1 - Mercedes-Benz Forum

We shall see.................i will keep you posted.

Ta Zak