W123

oil leak into air filter '79 300TD

my '79 300TD is leaking and burning oil at an alarming rate. it appears that oil is pooling in the air filter housing (the air filter itself is *drenched* in motor oil and oil is pooled in the filter housing. Also, the tablespoons of oil that pool on the pavement when the engine is hot (it doesn't leak at all overnight or when the car sits cold) are always found underneath, roughly, the air filter housing). also, the car intermittently blows a steady stream of blue smoke from the exhaust pipe that smells like burned motor oil.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1984 300D Turbo heater blower noise

I recently replaced the line that runs from the temperature sensor on the dash to the blower motor. The foam portion of the line behind the glove compartment had disintegrated. It was probably like this for many years. The blower motor or some other part of the blower is very noisy now. Any recommendations to quiet it down would be greatly appreciated.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

Loud Knocking Noise 1981 240D

I have been driving cross country in my 1981 240D (automatic transmission) and I find that when I am going up steep hills that I hear this loud knocking noise begin when I press the gas pedal. This noise disappears when I am on flat ground or going downhill. Is this normal? Or is this a sign of a tranny thats going out? Things seem to be operating normally apart from that. Thanks

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1984 300D Turbo Interior Noise

I have a noise that sounds like an air leak in my interior/dash board. The noise is a squeeky loud air noise and happens when the car is moving more than 60 MPH, however if I let off the fuel pedal the noise will stop. It appears to be directly related to throttle position as the noise will get louder as I accelerate and will quiet down on deceleration and will dissapear altogether when just cruising below 60 MPH. Any idea what this is and how I can trouble shoot. Any help would be very much appreciated.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

1984 300D rear dash buckling

Hi all at Mercedessource and site users. I am in the process of elimating the leaks in my front and rear windshields. The leaks in the rear not only make my trunk smell musty but I think they may be the reason my rear dash has buckled on the side of the dash where the first aid kit sits. (I have nothing heavy in the first aid kit.) My question is; how does that rear dash come out? And if any one else has had this problem, what course of action did you take? Are there new dashes, or covers available like the front?

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

84 300D Power Loss - IP or ?

'84 300D, 385K mi. WVO the past 25K mi. 5u final filtering (has a functioning boost pump). I slowly lost power over a 1K mi period. Did a valve adjust, fuel sys. complete flush-out, filter changes and new monak injectors. Checked for air leaks into fuel sys., none. Checked Turbo waste gate was opperation correctly, yes. Ran straight Dinodiesel the past 20Gal with a bottle in injector cleaner (for 50 gal.) Ran a qt of injector cleaner straight. (this isn't the diesel purge you have, but I just got some and haven't used it yet.) Cold Compression read, 400, 305, 400, 340, 380.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

83 300CD starter engaging problems

My Uncle is driving my 300CD out of town and he called asking if I've had a problem with turning the key and it not starting, which I haven't. The car has always started as long as it isn't in gear, which isn't his problem. He said that it would start sometimes on the first turn and some times it was taking multiple try's. Seems like it might be the ignition switch. Any suggestions on trouble shooting?

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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