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  #1  
Old 04-30-2001, 03:44 PM
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Location: Hicksville, NY
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Uh oh! This past sunday I jumped in the car to go and get a new bulb for the front directional. Well about half mile from my house I hear the unexpected!! Ratteling and a low rumble from outside the car. At that point there was oil pressure so I didn't panic too bad. I pulled off in a parking lot and turned off the engine and took a look under the hood. Found nothing out of the ordinary, so I went back in and started it back up, had oil pressure at this point but the cams were tickin' like mad. I looked again under the hood while it was running and heard the tickin noise louder and while I was listen I began hearing the chain smacking around, that when I panic set in and I quickly turned off the car while I was tunring it off I saw that the oil pressure that was there was gone.

The car is currently being looked at by the mechanic and he is a bit concerned since he never seen a Benz loose it oil pressure like that.

Both he and I are awaiting the diagnoses of the damage done. It would be nice if nothing happened, but I'm a bit concerned. When it happened the engine really was not up to operating temperature and I was going down a side street under 20mph, so my thought is that damage if any might be minor....

I'll keep everyone posted...has this happened to anyone else? The car has about 146,000 miles on it and run's like a top.
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Old 04-30-2001, 04:01 PM
engatwork's Avatar
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Join Date: May 2000
Location: Soperton, Ga. USA
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My first thought is the oil pump chain. Keep us posted on the results.
Jim
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  #3  
Old 05-02-2001, 11:32 PM
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Location: New Bedford, MA USA
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Your bearings and pistons are probably OK, but chain smacking?? You may have in fact lost the drive chain for the oil pump, or the pump let go. Good Luck. It sounds like you will have to at least have the front cover removed, probably the sump as well.
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1989 300e
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No matter what you fix, there will always be something else to fix..
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  #4  
Old 05-04-2001, 02:13 PM
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Join Date: Feb 2000
Location: Hicksville, NY
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Well just got the an update on my 300CE. It appears that the oil pump gave up the ghost. It seized up and snapped the bolt that attached the pulley to the oil pump. Something must have self-destructed internally on the pump since it is next to impossible to rotate the shaft. The most they can get the shaft to turn is 1/4 turn.

The shop is pulling a few bearings and end caps to verify that there is no damage. I will give an update when I find out more.

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  #5  
Old 05-04-2001, 05:05 PM
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Well just got off the phone with the service advisor of the shop and he informed me that was no visible damage done to the lower end of engine. They removed a few end caps and found no scoring and scuff marks. There was actually quite a bit of oil on them whent they removed them (this is what I was told).

Sooooo, they estimate that I will have my car back early next week. Yippeeee! Now I jsut have to wait for the bill!! Yuk!

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  #6  
Old 05-04-2001, 06:51 PM
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'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,925
Count your blessings!

I know two friends who were not so lucky as you! So count your blessings! They literally 'fried' the engine.

So when you get the bill, just think what it could have been. It pays to look at the oil pressure gauge once in awhile.
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