92 190e 2.6 EATS OIL, 1 qt. every 4-500 miles! help
Thread Starter
Member
Joined: Aug 2008
Posts: 149
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
92 190e 2.6 EATS OIL, 1 qt. every 4-500 miles! help
Hi
My Wife drives a 92 190e 2.6 Sportline that eats oil like crazy. Our tech can't find any leaks or reasons why it happens. The engine is clean and we have never had even one drop on our driveway.
MBUSA specs the car will eat 1 quart every 750 miles but ours is down to about 1 quart every 4-500 miles. The car drives great and passed smog with flying colors. The only odd thing is it seems to idle low and somewhat rough for the first 5 seconds or so after starting and then comes up to spec and is fine.
Adding oil all the time is getting old and expensive. Please help! Many thanks...
My Wife drives a 92 190e 2.6 Sportline that eats oil like crazy. Our tech can't find any leaks or reasons why it happens. The engine is clean and we have never had even one drop on our driveway.
MBUSA specs the car will eat 1 quart every 750 miles but ours is down to about 1 quart every 4-500 miles. The car drives great and passed smog with flying colors. The only odd thing is it seems to idle low and somewhat rough for the first 5 seconds or so after starting and then comes up to spec and is fine.
Adding oil all the time is getting old and expensive. Please help! Many thanks...
MBWorld Fanatic!
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From: Albuquerque
'10 CL550, '12 GL550
You either didn't pay your "tech" enough to find the problem or else he's just not good enough.
It's the same as any engine--leaks past rings, past valve seals. You don't find these things by looking, you find them by testing compression.
It's the same as any engine--leaks past rings, past valve seals. You don't find these things by looking, you find them by testing compression.
Thread Starter
Member
Joined: Aug 2008
Posts: 149
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
The compression was over 185 on all 6 cylinders. Any ideas?
thanks
MBWorld Fanatic!
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Are your spark plugs ever wet from oil?
What type of oil are you using?
MBWorld Fanatic!
Joined: Sep 2005
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From: Albuquerque
'10 CL550, '12 GL550
Nevertheless there's simply no such thing as "can't find why it's burning so much oil."
There may be "can't find it without charging you more than you want to pay to find it" of course.
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Very true, one of two things must be lacking in order for this situation to occur; competence on the part of your mechanic, or money on your part.
Thread Starter
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Joined: Aug 2008
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
thanks
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MBWorld Fanatic!
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I had one hell of an issue with my 560 burning oil, it turned out to be a couple of things, mostly due to the oiler rails being slightly tweaked and not sealing at the ends, spraying oil all over the place under the valve covers.
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Thread Starter
Member
Joined: Aug 2008
Posts: 149
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
The oil disappearing at a constant, even rate.
Member
Joined: Jun 2003
Posts: 219
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From: Irvine, CA
2000 CLK430
check your tailpipe and bumper. if there is black residue then it is your piston oil rings.
ask your tech to do a leakdown test...it will tell you exactly where your oil is going.
usually i pull the plugs and shine a flashlight into the chamber to see if it is wet.
ask your tech to do a leakdown test...it will tell you exactly where your oil is going.
usually i pull the plugs and shine a flashlight into the chamber to see if it is wet.
Thread Starter
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Joined: Aug 2008
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
I'm going to try and get the car into the shop this week and ask for the leakdown test.
thanks
Senior Member
Joined: Aug 2004
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BMW E30. I've turned to the dark side.
um.... nope. 103 engines are notorious for burning oil through the valve stem seals. premature valve guide wear is caused by less-than-ideal rocker arm geometry bla bla bla. worn guides allow the valves to shift sideways a bit and violla, oil gets past the hardening rubber seal. it is possible that a leakdown test will show poor valve seating but its the guides and seals that are usually the issue. Never have i seen a lower end have to come apart on these engines so it is highly unlikely that your piston rings would be the cause, as suggested above.
Member
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From: Irvine, CA
2000 CLK430
with the amount of oil burning and the residue, are you sure that it is the valve train?
would not bad oil or too much oil fry the rings causing blow by?
with that said i "think" that a leakdown test will tell all.
would not bad oil or too much oil fry the rings causing blow by?
with that said i "think" that a leakdown test will tell all.
MBWorld Fanatic!
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The valve guide/seal issue is very common in the US because people here tend to use substandard/mineral oils in their engines, while the European market embraced synthetics much sooner and on a wider scale. The synthetics preserve the seals better, and also do not allow varnish buildup.
Thread Starter
Member
Joined: Aug 2008
Posts: 149
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From: Sacramento
16 E350 wagon, 94 AMG, sold -95 E320 Sportline wagon & 94 E420 & 95 E320 coupe & 92 190 16v
At just $275 installed I'd have to agree it was lack of competence on the part of my former mechanic.....
Thanks to everyone for the help!
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S 320 white
before the valve stem seals go on ask him to measure the valve stem play, since the guides are a known issue for the 103 enigne family, if he is not an MB tech! i wish you luck, the money you are investing will soon be lost as the new valve stem seals will wear out soon.
