W126, BENZ AID - COMMON QUESTIONS AND ANSWERS

79 300D W123- Neutral safety switch

I've replaced the glow plugs, strap fuse, glow plug relay and the ignition switch on my 79 300D. Intermittently, she doesn't start in PARK ( glow plug indicator light goes on , but doesn't start when the key is turned)-- If I shift to NEUTRAL, she starts fine. I pay attention to the warnings this" Panzerwagen" gives me , so I'm thinking that there's some glitch in the neutral safety switch.
Am I on the right track? Please excuse potentially incorrect terminology- I'm no expert, which id why I subscribe to this helpful forum.
Thanks in advance for your help.

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84 300D Hard Starting Right After Shutdown

I know there is a remedy for this..but I can't find it on here again. My 84 300D starts right up cold, no problem. But after I turn it off and try to restart..the engine just turns over without starting unless I turn the key off then immediately turn the key on again..starts right up...anyone know the answer..? Thanks for any help !!

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1982 300TD Weird compression test results

Checked compression with engine cold one year ago. For this test I started at the front and went straight down the line to the back. Results were 370 - 370 - 370 - 290 - 330. Today I tested the engine warmed up and instead of going down the line I tested each cylinder in firing order. For this test the results were 310 - 310 - 310 - 220- 310.

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1976 300D Auto Shifting Question

I have a 76' 300D that I have to back off of the gas pedal to make the shift from 2nd to third. The 2nd to third shift will NOT happen unless I cause it with the gas pedal. The 3rd to 4th shift works better and will sometimes shift by itself without me backing off of the pedal. All the shifts happen in the indicated spots on the speedo, more or less, the kickdown into 1st operates just fine and the trans goes into drive and reverse with little to no hesitation. Trans has aprox. 175K on it.
Is there a linkage I can adjust to fix this, or is it a sign of my trans slowly going? To my knowledge this year trans did not have any vacuum hook-ups.

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