Jab

You've made a good point.

However, it was interesting to note that the Haynes manual for my 190e specifically mentions "Petrol & Diesel" at the end of the title.

Anyway, it seems Brooklands publishes a service manual which covers th W123 200 Petrol version.

Here are the links :

http://www.autoinprint.freeserve.co.uk/mercedes%20manuals.htm

http://www.brooklands-books.com/pages/mercwm.html

They are UK sites.

Cheers.