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Old 06-03-2002, 11:01 PM
hedpe's Avatar
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Join Date: Oct 2001
Posts: 507
500E engine smoking?

Hey guys, so i drove the car today for about a total of 20 miles to go putt putting. I get to the place after picking up people, which is pretty close to my house and I put it in park and smoke just starts coming from all sides of the car. Until i popped the hood it was coming from underneath the car. When i popped the hood, the smoke seemed to be bellowing from the back of the engine. I checked the temp and it was around 100, so it wasn't overheating. I checked the oil and it was pretty low. It was probably 1/4 full. So i put oil in the car and drove it about 4 miles to my house and the smoke didn't show back up. Should i check anything. Do you think it was the oil?
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Old 06-04-2002, 12:05 AM
hedpe's Avatar
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Posts: 507
do you think its ok to drive a total of maybe 7 miles to see if its ok to drive around and if it smokes? Or should i leave in the garage tonight?
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Old 06-04-2002, 01:01 AM
MikeTangas's Avatar
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Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
What did the smoke smell like? Oil, ATF and coolant all have their own distinct aroma and all could conceivably leak near the back of the engine, onto a hot exhaust, and produce large amounts of smoke. Power steering fluid can also produce large smoke if leaking onto a hot manifold, but I'm here to tell you power steering fluid on a hot exhaust manifold will produce almost instant flames, almost lost the Suburban that way one night.

I'd say let it sit over night and check all fluids and for any leak sources in the morning.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

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Old 06-04-2002, 01:15 AM
hedpe's Avatar
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Join Date: Oct 2001
Posts: 507
Well guys, i took it out and drove it and nothing happened. I don't remember the smell, i have only had a smoking engine once before, and that was with our 300SEL, and it was 10x worse. You could barely see the car in the smoke, and it was because a water hose broke or something along those lines and the engine horribly overheated. Well, i don't think I have a broken hose, but re-reading the temperature gauge, i noticed that the temperature when it was smoking was alot higher than i thought it was. It was probably around 110. And from what I understand, that is overheating temperature. So I imagine that the engine was just overheated. I did not drive it hard or rag on it, I guess maybe low oil contributed. I'm going to have to keep an eye on it. BTW, i remember reading somewhere about a guy who made a chip that turns your aux fans on sooner to keep the engine from overheating. I believe he made it for his 600SL or S600 or something along those lines. But he mentioned a mercedesshop discount in it. And i do remember reading that it was for a 500E also. I would like to check it out again, anyone have the link?
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Old 06-04-2002, 03:03 AM
rainmaker's Avatar
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Join Date: May 2001
Location: Asia
Posts: 563
Search for "JimF" and "Cool Harness" He makes em and sells em. It's actually a harness that goes between your temp sensor and your wiring harness, engaging the aux fans earlier.

Lotsa people here did this mod and are happy with it.

Hope that helps...
93 500E, 43k mi, Pics of upgrade parts
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