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#1
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Major Oil leak / loss after oil change
Just purchased an '85 300 D Turbo and completed what I thought was a routine oil change. I let the car drain for quite some time. Last night, I put the oil back in. When I started the vehicle this morning it fired right up and sounded fine. I walked inside for 2 to 3 minutes, came back out and looked under the car only to see quite a bit of oil on the garage floor! I immediately shut the car off. From what I could tell, it was coming from the rear part of the engine.
Prior to this oil change, the oil did not even drip on the carport. Any ideas on what may have happened? I have changed the cannister filters on 240's, 300 D and SD at least 100 times with no problems. |
#2
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Oil filter can
Refill with oil and check seal on filter can. Did you use a new seal and oil the new seal?
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1984 300D Turbo Sedan (Hilda) 272,115 miles..... Anthracite Gray/Palamino Leather, I am 3rd owner 2001 Dodge Stratus (Silver) (wifes) 55814 miles... 1982 280TE Wagon Astral Silver Metallic/ Anthracite Velour 260,512 miles (Eva) 1969 230 Sedan Olive Green/Black MBTex 4 Speed Manual 84,213 miles ???? Haus Frau 2004 Boreem Ninja Pocket Bike Highly Modified 49cc (Ling Ling) Einigkeit und Recht und Freiheit |
#3
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athensbenz,
Other than the O-Ring at the cap on the filter housing, there may be a few other items that may have been disturbed that can leak if you had a hard time getting the cannister top off and back on. Most of this should be pretty obvious though, if you wipe down the area of the leak. I have just had the mechanical joint from the block to the cannister housing fail on my 240D, which resulted in a serious leak at the rear of the engine. But it was also visibly traceable. Hope this helps, Jim
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Own: 1986 Euro 190E 2.3-16 (291,000 miles), 1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000, 1988 300E 5-speed 252,000 miles, 1983 240D 4-speed, purchased w/136,000, now with 222,000 miles. 2009 ML320CDI Bluetec, 89,000 miles Owned: 1971 220D (250,000 miles plus, sold to father-in-law), 1975 240D (245,000 miles - died of body rot), 1991 350SD (176,560 miles, weakest Benz I have owned), 1999 C230 Sport (45,400 miles), 1982 240D (321,000 miles, put to sleep) |
#4
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I used a new seal. I am going to open the filter cannister back up this evening, make sure it is oiled and tighten it back down correctly. I hope that is all it is!
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#5
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One more question... If it was only the seal on the cannister would it be leaking elsewhere?
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#6
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athensbenz:
Are you sure you took the old seal out? I inadvertently left the old ring seal in my car, was able to bolt the lid back on. Started her up and oil went everywhere. I resolved not to work on the car without my glasses on after that!
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Dave 1982 300D 352,000 miles |
#7
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Quote:
I've never had a problem with the o-rings that come with the MANN or HENGST filters but the seal that comes with the WIX filter is the wrong size to fit tight on the cannister lid and stay in place while you monkey around.
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Never a dull moment at Berry Hill Farm. |
#8
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I will not know for sure until this evening (after 7PM). I am hoping this is the only thing. Although I will feel really stupid if that is what happened (o-ring gasket on filter cannister not seated properly), better to feel stupid than have some other major issue to deal with. I let everyone know what I find!
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#9
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Not stupid, it's an easy mistake to make
I have two 123s that I've owned for over a year. They both receive religious 3000 mile oil changes (ie 10+ oil changes between two vehicles in the last 18 months) and I dropped that o-ring into the cannister during my most recent oil change.
It's waay too easy to do. The bad thing for me was, it was the first time I'd tried a 'topside' oil change and I was doing it all doing outside. In the brief seconds between cranking up, confirming oil pressure and getting out of the car to discover an absolute Niagra of oil exiting the housing . By the time I jammed home the shut-down lever, I had a oil spill the size of a trash can lid on my nice clean freshly power washed driveway! Jeez.
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Never a dull moment at Berry Hill Farm. |
#10
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Quote:
i did this when i changed to mobile delvac. if it hadnt been for my friend tiffany watching me work on it i would have lost more than the 3 quarts all over the car port. all lost because of the stupid o-ring.
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have no worries.....President Obama swears "If you like your gun, you can keep it |
#11
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Scott 1982 Mercedes 240D, 4 speed, 275,000 1988 Porsche 944 Turbo S (70,000) 1987 Porsche 911 Coupe 109,000 (sold) 1998 Mercedes E300 TurboDiesel 147,000 (sold) 1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!) 1997 Mercedes E300 Diesel 236,000 (sold) 1995 Ducati 900SS (sold) 1987 VW Jetta GLI 157,000 (sold) 1986 Camaro 125,000 (sold - P.O.S.) 1977 Corvette L82 125,000 (sold) 1965 Pontiac GTO 15,000 restored (sold) |
#12
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Also make sure you didn't trap something (like a vacuum hose) under the lid. If you did, that needs attention too.
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#13
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I removed the cannister lid this evening and found the problem. The o-ring was the culprit. It was not tightened properly. I replaced it and tightened everything back and all seems to be well! Whew! I was sweating that one! Thanks for all the help and pointers.
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#14
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I have taken to "gluing" the O-ring in place with high temperature, synthetic grease. I use an Assembly Grease product from Red Line Oils, or a high temperature synthetic grease for braking components. I apply it a little thicker than a typical coating so the O-Ring is partly submerged in the stuff. It is very effective in holding the O-ring while I manipulate the cap and stem to get the cap back on the housing. Hope this helps, Jim
__________________
Own: 1986 Euro 190E 2.3-16 (291,000 miles), 1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000, 1988 300E 5-speed 252,000 miles, 1983 240D 4-speed, purchased w/136,000, now with 222,000 miles. 2009 ML320CDI Bluetec, 89,000 miles Owned: 1971 220D (250,000 miles plus, sold to father-in-law), 1975 240D (245,000 miles - died of body rot), 1991 350SD (176,560 miles, weakest Benz I have owned), 1999 C230 Sport (45,400 miles), 1982 240D (321,000 miles, put to sleep) |
#15
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Jim...I'll keep this in mind for the next oil change. It is good to be back behind the wheel of a Benz diesel. I had forgotten how much I missed them. !
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1985 300 D T - Rauchsilber (Smoke Sliver Metallic) with MB Tex Quartz 155 = Cream interior - 320K and counting! 1999 E300 TD - Silver - Just got her 3-13-15 ! the 2nd '83 300SD - Brown Metallic - traded away 1985 Limo Diesel aka "Stretchy" - Sliver - Blue Int - Sold but still in Athens 1983 300SD - Brown Metallic - Sold April 2008 1982 300 D T - Royal Blue with Tan interior - Sold |
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