Since I am always the one on the ground... I do not have the engine running either....
The distance the pedal goes is entirely in the control of the person opening the bleeder nipple... it is only open a fraction of a second.. a fraction of a turn... you want to close it while the pressure is still high in the fluid....

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/showthread.php?threadid=10414

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

evap fin cleaning:

http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator

A/C thread

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