If I were you I'd go for the FSM (Factory service manual) for the most technically correct information. So buy this if you think you'll be doing many more complicated jobs.

Otherwise Haynes tends to be OK for most uncomplicated jobs - although I've not seen the version for your car - but I guess it is better than the W123 diesel book they wrote which is pretty dire... Anyway, make sure it has what you want before you buy it though.

If in doubt - check here though!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!