W126, BENZ AID - COMMON QUESTIONS AND ANSWERS

'82 240D Service/Repair Manuals

I just bought a 1982 240D and am struggling with finding a good repair manual. I don't like the CD-ROM manuals that you can find at manualsunlimited.com b/c I like to have the physical manual in hand when I'm doing a repair. I also find the Chilton's manual to be way to general and not very accurate for my '82 240D. I see that mercedessource has a bunch of manuals for sale, that cover a wide variety of 240D related topics. But I don't see one or even two that combined are a comprehensive engine and body repair guide. Can anyone recommend a good service manual (Mercedes Factory manual in print?) or manuals that would cover most major maintenance and repairs? First up for me right now is glow plugs, valve cover gasket, vacuum pump gasket and brake master cylinder.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

lpg convertions

Has anyone played with lpg or natural gas conversions on the fuel injected engines? these gas cars could use a little help in the mpg dept.
Being naturally fuel injected should make the conversion simpler. But the danger of blowing up a perfectly good engine has its drawbacks.
Back in the 80's it was a fairly common conversion, but I haven't heard much about it lately.
Now you hear PikensPlanCNG.
Sounds promising, but is it practical?

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

'81 300SD Turbo Diesel - Trans slow in engaging reverse.

I have an '81, 300SD, that sat in a field for 2 years due to leaking engine oil cooler lines. Replaced lines, checked all fluids, started and ran, and then took it for first test drive. Noticed it was slow going into reverse. Have zero (0) power to power-brake booster. Figured vacuum pump needs to be either replaced or rebuilt. As I checked the transmission fluid, with the engine running and the transmission in park, when I checked the fluid it seems to be over-full. Previous owner was adding Dextron/Mercon trans fluid. As I put it into reverse it is taking longer and longer each time for the reverse to engage. Are the above my problems, ie: vacuum, wrong trans fluid, improper checking technique, or is the transmission going south?

Forums

Body and Interior Specific Aid

my 83 engine is different then my 85

I have an 85 300 CD turbo and the original engine was blown, I got a beautiful 83 engine, have it up and running, but the old engine had a 3 wire lead on the injection pump and a 3 wire lead and switch on top of the valve cover. The 83 engine has a vacuum switch on the valve cover and no electrical lead on the pump. The transmission shifts hard and I assume it is these differences that are causing this can anyone help me with?

thanks,
Phil

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

85 300 CDT no heat

Hi I have a 1985 300 CD turbo and I have no heat. So far I have taken apart the control panel and cleaned all the switches and re soldered any suspect connections, I also fixed the aux water pump so I know that is working now and I bypassed the mono valve so the water will flow through the core, but still have no heat. the fan works and I have air coming out of the defrost and outer vents, but no air at the floor. Can anyone point me in the right direction as to what is wrong with this?

Thanks,
Phil

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

84 300SD transmission governor screens

I would like to check and clean the governor screens in my 84 300SD transmission, but have no idea how to go about doing it. I think they can be accessed near the filter, but don't know anything about transmissions. Any suggestions? Are there any books or manuals available to teach me how these transmissions work and how they can be serviced and repaired?

Thanks for your help - Steven

Chassis Model Number

W126

Forums

Diesel Engine Specific Aid

84 300TD wagon transmission leak

I have a transmission leak. It seem to mainly be leaking out of the driver side (opposite the drain plug) of the pan...mainly from the center bolt back toward the rear (toward the rear of the car) bolt. It almost looks as if it's leaking out between the pan, the gasket and the seal between the gasket and tranny. I've replace the filter, the gasket and the pan.

Hopefully this wordy description can lead somebody to help me out. Thanks in advance.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

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