Yes I do. and do it sooner than later so you have time to drive it and find if all is ok before taking off into the hinterland...

NOT changing the coolant with some of these cars can also eat through things like the heater core...

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Thanks. I'm going to try to drain the radiator and block, gently run some water through, swap out the thermostat and expansion tank cap with new, refill with the correct coolant mix.

Just fearful a big blast of a flush might dislodge things and lead to failure on the open road.


Thanks for your reply.