Well done, thanks, A 006 542 49 18 is the part number I was given - just a different length cable.
Parts in motion were £78 inc 1st classs postage for the Bosch one might just pop into the local garage and pay 1/2 labour if they have time, I only have axel stands..
Yep, I did, that incuded the postage on top.
They were very helpful, looked up my part number and added to their system as wasn't on their web page - should be here today I think..
Popped into BG Griffiths - he was working on a w204 with a subrame completely dismantled for replacement + brake lines.
Managed to fit the O2 sensor then and there while I waited - brilliant service !
Definitely need a lift as like one for the road said, it's high up near drivers front wheel, just off the turbo but accessed from underneath...