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My o2 sensor was damaged

2547 Views 3 Replies 3 Participants Last post by  AllWheelGrip
Help! I am a first time audi owner and have had my car for 2 years now. The gas mileage has dramatically dropped to 19 now. My custodian (I'm a teacher) had in mind to fix the gas mileage, so has changed the spark plugs and filters using original parts. In the process of doing all this, the o2 sensor was damaged and the dealer said that didn't matter. Is that true that it doesn't metter?
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changing spark and filters wont help wit the fact that the 02 has gone bad, 02 sensors goin bad is a common thing with audis
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