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Discussion Starter #1
got the check engine light today,
came up code 0161 downstream o2 sensor heater

does the 97 e420 have more than 1 o2 sensor?

when i look under the car from the side i can see 1 in the exhaust pipe is that the one?

car runs great otherwise, no change,,i reset the code and it hasnt come back,

should it be replaced?

where and how much??

thanks
 

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Discussion Starter #3
cool thanks,,,i ordered a tranny fluid change kit from them,,,good shop!!:thumbsup:

ill see if the check engine light comes on again this week.:cool:

car has 153000km
 
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