W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

240D overheating

My 1977 240D with 260,000 miles, which ran wonderfully up to the point where I decided that I need get the green stuff out, now has overheating issues. I replaced old coolant with the Zerex GO-5 per numerous reference on this forum and other sources. While changing over I also back flush the cooling to confirm that all of the old coolant was completely removed. After purged the system of air through the bleed screw in the top of the thermostat housing and running the heater, I thought I was back on the road as good as ever.

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Chassis Model Number

W123

"Core Support" location on W126

I bought an FM10 water separator filter for my 1982 300SD, and in the instructions it suggests that I mount it to the left front "core support" bracket. After surveying for a spell, I was unable to locate this bracket in the engine compartment. Can anyone point me, via other reference points, to this bracket? Thanks in advance, tbird

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Chassis Model Number

W126

Exhaust Leak From Manifold Or Turbo on a 300SD

I noticed a bit of soot in the instrument panel of my '84 300SD. I also get a few specks of soot on the grille and under the hood. My guess is that I have a minor leak somewhere on the exhaust side of the engine. Is there anywhere that seems prone to leakage? Exhaust manifold gasket, turbo gasket, etc.? Thanks for any advice you can provide. Tim Delaney Stewiacke, NS, Canada 1984 300SD, 225,000km

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W126

Flex Plate location?

I recently bought an 81 300td that has a 118 transmission. When driving, there is a bad flare between 1st and second and the car "clunks" like I am dragging a can of paint under the shifter. I read (/node/49) the flex plate torque converter page and thought that may be my problem. But I can't figure out where the blasted thing is so I can check it...and if it needs replaced or needs new bolts, Kent, do you have those handy? I did just finish changing the transmission fluids and filter, oil and filter, and the inline fuel filter.

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W123

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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Chassis Model Number

W116

240D spun rod bearing and can't find parts!

I'm trying to find undersize rod bearings for a 1976 240D I just picked up. Seems to be pretty easy to find standards but that's it. Is it possible to return a crank journal to the standard size if the bearings aren't available? The engine was totally rebuilt a few years ago but... kid driving, hole punched in oil pan, ran out of oil and that's it.

Chassis Model Number

W115

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