W116, Rust Repair

shift bushing replacement advice

This is not a question, but rather an additional tip.

I've installed MercedesSource's shift bushing kit on my 1980 300SD, a W116 chassis. The instructions were very good, though I had trouble getting the clips back onto the shifter rod between the two levers. With the shifter rod out of the car and held in my hand, I was amazed at how easy the clips install on each end, but nearly impossible when the shifter rod is inserted into both of its bushings under the car. I thought I'd share how I solved this problem.

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6.9 transmission pump

the transmission in my 6.9 has become all neutral. no engagement in any gear. this happened just after i started the car in the morning. i backed up about 3 feet, and that was it. prior to this, it worked perfectly, with no noises or malfunction of any kind. when i checked the fluid level it was very high. can anybody tell me anything? it was suggested that i check the auxiliary trans pump located below the ac compressor? help!

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Auxiliary electric water pump needed?

I'm going to order and install the Climate Control Servo bypass kit for my 1980 300SD. The original servo is no longer working, neither is the auxiliary pump, and I'm tired of no heat control. Right now it's all heat all the time. The auxiliary pump has been broken for a lot longer than the servo, and I've been able to get adequate heat from the climate system. My question is, do I really need the auxiliary pump? I know it's recommended, but aux pump only really works during idle. Why can't I just put a U shaped pipe there in place of the auxiliary pump?

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