I was driving to go out on saturday night when all of a sudden all of the lights on my dashboard strarted flickering they were comming on and off and on and off and they they remained on solid. I turned my car off and restarted it some kind of noise was comming out of the engine. Lately i have been dripping antifreeze liquid drop by drop for a small ammount of time and the other day my car started making a hissing noise. I dont know what has anyone had this problem before?? Any suggestions on what i should do??

Oh and the car is a 87 300 DT

inspect the radiator, the coolant expansion tank, the thermostate housing.. i think there is a dye you can put in the system and use a black light to find leaks.. also check the oil and make sure the coolant isnt mixing with the oil

sounds like several issues unrelated.

for the interior lights, my 87 300d t requires me to smack the dash every now and then to get the lights working correctly.

as for coolant, wheres it dripping from? upper rad hose at rad is common, so is water pump, reservior...

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Paul
Benz-less
I need an SDL !

Get it to an Indy if you aren't familiar with this engine. That sound might be something minor or it might be serious. The 603'd need a certain attention by someone familiar with its eccentricities.
Use the search tool for shops, Enrique has a shop is in Tarzana (CA) and is highly recommended, are you near there?

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

i was searching more on the site and i think the noise problem might be from the alternator. When i had taken it to my mechanic, he said it either was the alternator bearings or, the turbo but the turbo seems to be working fine because i hit 100mph on the freeway easily on thursday. So does anyone agree with me might it be the alternator?

We use a stethoscope made for detecting engine (and trans and differential etc) noises in the garage. It is sort of like a medical stethoscope but has a long pointed pickup on the end that you place on the various places on a car. If you put it on the alternator you would hear noise from the bearings clearly. It will pinpoint a noise where just using your ears will not.
Any mechanic that has heard a bad turbo knows its not like an alternator. Ruling out the lack of experience, does your mechanic lack a proper tool such as the one described?
The belt tensioner pulley bearings are prone to making a rumbling noise too, don't rule that out. A test for that is to remove the serp belt (you have to remove the belt before removing the alternator) then spin the pulley by hand, listening for anything noisy it should turn smoothly. This test is cheap and easy to do before tackling an alternator that may or may not be the problem.

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!