BENZ AID - COMMON QUESTIONS AND ANSWERS

1978 300cd with 617.952

Kent

My diesel starts great idles on all 5 no miss but when you start going down the road she misses intermittently at lower rpm quits at mid and high range rpm until she is up to temperature then she's fine she doesn't smoke and she has power up the kazoo any idea's? I have run 2 can of diesel purge set the valves no change. Bad injector maybe?

Thanks
Todd

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w126 rear center console vent help please

My '82 w126 300sd center console rear vent (the one that exits out the back of the center console facing rear seat passengers) has been stuck open and when I pulled vent, I discovered why. Upon reinstalling, I have no vent function and it seems cable is now disconnected on the other end (front of car) the question is, where is the other end and where/how do I access? Thanks Kent!

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85 300TD A/C belt keeps coming loose.

I'm having an issue with my A/C compressor belt on my 85 300td. It keeps coming loose.

When I bought the car 2 months ago, the belt was missing completely and I was not sure if the A/C worked or not. I installed a new conti belt. The a/c works perfectly except after 200 miles or so the belt comes loose. Yesterday I checked the belt and now it looks slightly chewed up on one side.

I'm not sure if the problem is A/C pulley or something else.

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1982 300DT vacuum troubleshooting

I recently purchased the Vacuum Troubleshooting kit and have begun to tackle some minor issues with my wagon.
Right off the bat I find something not specified in your manual.
I started with a vacuum pump test and my gauge is reading 16.5 inHG. When I remove the line from the booster it reads 19 inHG - neither seems REALLY low, but are below the 20-23 inch range.

I have two questions:

1. Is there a way to determine if my checkvalve is leaking versus a slow leak in the pump itself?

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