This DIY that Dmorrison did will give you an idea of what is behind the dash. he is working on a 83 240 and a 82 300TD at the same time.

Scroll down to picture 127 and you will see how dirty the evaporater can get after 25 + years. this will cut down on your AC cooling.

http://www.peachparts.com/Wikka/W123Evaporator

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works