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  #1  
Old 06-04-2003, 10:48 PM
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Join Date: Jun 2001
Location: Denver, Colorado
Posts: 127
300e 1986

hey everyone,
just need some tech advice before i probably spend 1000 at a local mercedes shop.

my oil light keeps comming on but the oil level is near full mark when the engine is quit cool. I check the oil every now and then and it seems that the oil isnt that dirty at all. however, i do need to replace my timing chain because my mileage on the car as of now is close to 205,000 on the same timing chain. on top of that, the front cover gasket is leaking badly. will the timing chain affect the oil light to come on? or is there something else going on?

all the responses are appreciated.
allen

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  #2  
Old 06-04-2003, 11:16 PM
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Join Date: Apr 2002
Location: Dallas Area
Posts: 406
Does your oil pressure gage show that you have enough pressure? If so, it just might be a bad oil level sensor.
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  #3  
Old 06-05-2003, 12:36 AM
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yeah my oil pressure hits top bar 3 all the time when i cruise past 2000rpm. when i'm idle, it will stay close to 3 most of the time but will never drop below 2 bar.
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  #4  
Old 06-05-2003, 06:37 AM
LarryBible
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If your oil level stays up, there is just a problem with the oil level sensor. The motorists of the world got along just fine for about 85 years before low oil level lights were added to instrument panels. It is NOT worth $1,000 to fix this IMHO.

The timing chain will have nothing to do with oil pressure. Also, this particular engine has a ratcheting tensioner and is NOT known for breaking timing chains. You would be best served by checking for stretch and if there is none, then wait until the engine must come apart for some other reason, then change the chain while you are in there. If you have to remove the timing cover to reseal, that might be a good time to change the chain.

Good luck
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  #5  
Old 06-05-2003, 03:52 PM
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Join Date: Jun 2001
Location: Denver, Colorado
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hey thanks for the advice larry.

but one other question...and this may seem stupid.

what are the affects if you were to put too much transmission fluid? would the car shutter when its about to take off from idle everytime? i figured that since my 300E shutters everytime it takes off, i would suspect a probable fuel filter being clogged or somethings wrong with the injectors?

thanks for your help
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  #6  
Old 06-05-2003, 04:22 PM
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Join Date: May 2002
Location: Mass
Posts: 1,127
The shudder could be a worn driveline coupler.

A fuel delivery problem would probably be more of a hesitation.
How about in neutral? Does the motor hesitate when you give it throttle?
__________________
1986 300E 5-Speed 240k mi.
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  #7  
Old 06-05-2003, 04:43 PM
LarryBible
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Too much ATF in the transmission is definitely a bad thing, but the problem would usually be that it would blow seals. There could be other ills to be had with an MB automatic, but I'm a manual transmission person so I don't know.

Have a great day,
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  #8  
Old 06-05-2003, 04:53 PM
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Location: Dallas, TX
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I have the same hesitation problem on my dad's, it has NOTHING to do with the trans fluid. Does your car also stall right after first starting?
David
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  #9  
Old 06-05-2003, 05:26 PM
inspector1
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Mybeweno,

I have the same problem with my 87 and my guess is ( for my car):

I am recalling from memory the schematic, so I hope that I am accurate:

The oil level sensor has a little hole in it that the oil returning from the top end flows though, that completes a circuit in the sensor that turns off the dash light when enough oil is passing though it.

I am thinking that gunk has particially clogged this hole, so that when my oil gets hot, ( thinnner) it fails to register the signal, so my oil light stays lit, after the engine hits 80*C even though it is full.

I have plans to drop the pan and clean this little doo-dad soon.

Good luck with yours
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  #10  
Old 06-05-2003, 08:39 PM
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Location: Denver, Colorado
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thanks for all of the replies
i do get hesitation...big time when i start up the car. is this the effect from bad timing from the timing chain or is it something else?
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  #11  
Old 06-05-2003, 10:06 PM
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Join Date: Jul 2002
Location: visalia ca
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as far as i know you don't have to drop the pan for the float.
also if it comes on right away when you make a turn then you delay relay is bad.

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