Posted the below on the tech forum but got no responses. Hoping you guys have ideas.

Am also interested in learning about the fuel system on this vehicle. My Chilton's manual is very vague about the components and absolutely fails to identify some of them.

137 k on the odometer and 38 mpg. No rust and no problems other than normal wear and tear. Slow to accelerate but once she rolls 85 mph is no problem.

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Replaced the main and pre fuel filters on my 1984 190D and, what I thought should be very simple, now has me scratching my head.

The vehicle will not start and has all the symptoms of air lock in the fuel system. According to my Chilton's manual, the 1984 190D is self priming. I do not see a priming pump.

Have confrmed that the fuel pump is pumping and that the main filter is full of fuel. There is some air in the pre filter but I don't think that is the issue.

All ideas are appreciated.

keep cranking. It will eventually start.

__________________
Jovan

'84 (11/83) 190D 2.2 5-Speed; Silver/Blue; Motor No. 00354, 402k mi (340+kmi mine)

'89 Porsche 911 Turbo Coupe; Black/Black; 53kmi
'05 BMW 530i 6-Speed; 302kmi
'19 Range Rover; 30kmi

It takes a long time to clear the air, Jobgass, especially if you don't fill the primary filter with fuel. Keep cranking.