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  #1  
Old 08-29-2001, 02:02 PM
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Question oxygen sensor

can anyone tell me where to locate the oxygen sensor in my 1990 200 te (w124t) may be a diagram or a photo will be of much help,. zee
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Old 08-29-2001, 10:27 PM
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Zee,
Are you sure you have one (an 0xygen sensor)? Do you use unleaded fuel in your location? Is your car fuel injected (the "TE" designation would indicate it is fuel injected)? In order to have an oxygen sensor the car would have an emissions control system. Initially these were developed for US export models only, and eventually were made available elsewhere. The 200 engine in the car you have was not one of the ones imported to the US, and that is why I am asking the question. It may be possible that your car does not have a catalytic converter and therefore the controls that are required to make the combustion process work effectively with a catalytic converter. 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)
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Old 08-29-2001, 11:39 PM
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Hi Jim
yes, it is fuel injected, we use unleaded, the note sticker under hood says 'KAT code 62/0', so i believe it has a catalytic converter,but am not sure if the previous owner might have junked it.
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Old 08-29-2001, 11:48 PM
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Location: Old Lyme, Connecticut
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Zee,

If you find the catalytic converter, the oxygen sensor is located just upstream of it and looks like a little plug screwed into a raised boss on the exhaust pipe. It has a wire coming out of it that goes up to the computer. When the catalytic converter is new (from the factory) it has a heat shield around it that also obscures the oxygen sensor. The likelihood someone replaced the catalytic converter if it was poisoned is pretty slim, as they are frequently bypassed or replaced with blanks in this country and they inspect for them regularly in most states now. 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)
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  #5  
Old 08-30-2001, 04:06 AM
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zee zee is offline
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Location: Chennai,India
Posts: 28
Thankz Jim, I will look for the cat. now
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