Oxygen Sensors
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97' S320 & 00" S500
Oxygen Sensors
I was wondering how long I should expect the Oxygen sensors to last in the W140. I have a 97 S320 with 237K miles. I changed both O2 sensors about 50K miles ago and now I am getting the check engine light with the O2 sensor being the problem. Is this normal. What is the typical life expectancy of an O2 sensor?
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97' S320 & 00" S500
Thanks for the response Oldsinner. I don't feel so bad about having to drop $175 for a pair of sesnors. At least they are fairly simple to change out. Last time I went ahead and got the Bosch sensors. Is that the "Best" or is there another brand that will give me better service life.
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From: Northbridge, Ma.
94 S420,95 S500 ,96 S500
I was wondering how long I should expect the Oxygen sensors to last in the W140. I have a 97 S320 with 237K miles. I changed both O2 sensors about 50K miles ago and now I am getting the check engine light with the O2 sensor being the problem. Is this normal. What is the typical life expectancy of an O2 sensor?
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From: tennessee
s320
you might be burning a little oil which causes the O2 sensor to get dirty.Chrysler makes and sells a combustion chamber cleaner.I follow directions and see if you sensors last longer.Normal life for good mpg 65,000 to 95,000.Mine has 176000 but I clean my combustiomn chamber twice a year
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97' S320 & 00" S500
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Joined: Aug 2009
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97' S320 & 00" S500
I guess it is possible, but my engine has never shown signs of burning oil before. I only use synthetic oil, I change my oil every 5K miles and I never have to add any oil between changes. I would like to get more information on the combustion chamber treatment though. I plan to keep this car for another 250K miles and I figure I will need that at some point. I will pull one of the O2 sensors to see if there is any oil film on it. Thanks for the suggestion.
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From: tennessee
s320
Syn. Oil. Huh my engine hated it,that why I,ve gone to diesel oil 15w 40. Its a old trick for gas engines to last way longer that energy conserving cutting oils./I call these new oils cutting oils,I'm a CNC Lathe and Mill man.
But go with your heart.Some motor oils like super tech Wal Mart brand causes my m104 to lose oil,or it evaporates.
Thats why I stick with Rotella. My new 1/4 mile time 14.570. proves the nitrous gain and orignal horsepower.
But go with your heart.Some motor oils like super tech Wal Mart brand causes my m104 to lose oil,or it evaporates.
Thats why I stick with Rotella. My new 1/4 mile time 14.570. proves the nitrous gain and orignal horsepower.
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Joined: Aug 2009
Posts: 81
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97' S320 & 00" S500
Syn. Oil. Huh my engine hated it,that why I,ve gone to diesel oil 15w 40. Its a old trick for gas engines to last way longer that energy conserving cutting oils./I call these new oils cutting oils,I'm a CNC Lathe and Mill man.
But go with your heart.Some motor oils like super tech Wal Mart brand causes my m104 to lose oil,or it evaporates.
Thats why I stick with Rotella. My new 1/4 mile time 14.570. proves the nitrous gain and orignal horsepower.
But go with your heart.Some motor oils like super tech Wal Mart brand causes my m104 to lose oil,or it evaporates.
Thats why I stick with Rotella. My new 1/4 mile time 14.570. proves the nitrous gain and orignal horsepower.
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Joined: Jun 2010
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From: tennessee
s320
I 'll stick with 15w40 ,my Dad had over 400,000 miles on a 390 ford,and running when traded.
PS. I will quit helping people as there are two rude person trying to start fights. I encrourage other to report them also.watch out for The E.A. dude
PS. I will quit helping people as there are two rude person trying to start fights. I encrourage other to report them also.watch out for The E.A. dude
Last edited by oldsinner111; Jan 5, 2013 at 10:52 AM.
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97' S320 & 00" S500
Just ignore that crap. This is an open forum which should be for a fun and light exchange of information and experiences. I don't take this too seriously and neither should you. I certainly wont hold you or any of the other novices responsible for inaccurate advice. It's my job to be discriminating in what advice I accept. But back to the oils though, Rotella is great for the diesels but not so good the the high performance gasoline engines. You really need a better lubricating, lighter weight oil to do the job. I swore by Rotella when I was running the diesels but moved on when I switched to gasoline.
