BENZ AID - COMMON QUESTIONS AND ANSWERS

85 300TD rear main seal...what else to do?

I changed to 5W-40 synthetic and am now leaking from what appears to be rear main seal. For the sake of my question, let's assume it is (and is not the oil filter to block housing or cooler lines) and assume I take the engine out to fix it. BESIDES the items listed in the transplant guide, are there any "may as well do's" while the engine that has 190Kmiles is out anyway? Compression is 320/320/310/290/300psi COLD and oil pressure at 1.75 bar at 85 degrees C after a hard highway run....is a ring job/crankshaft bearing "cheap rebuild" worth it with those numbers?

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1975 240D Relocate Battery to Trunk

I need to relocate my battery to the trunk of my 1975 240D so I can install the Electric Fuel Boost Heater close to the injection pump.

I'm trying to install the Electric Fuel Boost Heater. I went through a lot of work making mounting brackets and a plate but in a nutshell it doesn't work. It vibrates too much, and I'm afraid the vibration will danmage the thermostat of the EFBH. I made the mistake of relocating my orginal fuel filter and mounting the EFBH to the fuel filter mount. I think I'm better off to relocate my battery so the EFBH will be attached to the car body and not the engine.

My questions are:

1)Where is the best place to drill a hole in the trunk for the battery cables?

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Mileage Specs 240/300D

What is the manufactures advertised MPG on the 240D and 300D?

Did this vary depending on the model year?

While negotiating the purchase of a 240D with WVO installed the seller said, he had just purchased a 1983 300D that got better fuel mileage per gallon. I thought this odd considering the 240D is a 4 cylinder and the 300D is 5 cylinder. Would use of the WVO system in the 240D somehow cause this to occur or is it more likely something else causing this to occur? Would the vehicle the 240D get better gas mileage if run solely on diesel fuel?

Thanks.

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1984 300D cruise control not consistant

Hi all and Happy New Year. I have read a few questions about cruise control problems and always try to learn from them. The problem with my Benz is a little different from what I am reading. My CC works but is not consistant. Sometimes when I set it right around 60 mph and around 3000 rpm it holds pretty smooth and constant. But unless I set it at just the right speed it operates kind of jerky. It will surge for a second and then back off as it compensates for hills and dips on the highway. It just isn't constant.

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1985 300SD Leaking head gasket

Just got done pulling the intake/exhaust manifold and noticed what appears to be a relatively small leak from the head gasket (see photo).
http://tinyurl.com/ygyrya2

My question is, how serious is this? As far as I know, this is the remnants of an old leak that happened 20 years ago and hasn't leaked since...no idea though. Engine has right at 200K mi. on it.

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