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1999 Audi A6 O2 Sensor CEL
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oldman13
New User
Jun 17, 2023, 7:01 AM
Post #1 of 2
(1028 views)
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1999 Audi A6 O2 Sensor CEL
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I purchase this Audi last year for my wife who drives it only 2,000-3,000 miles a year. It looks amazing for 240,000 miles. The PO owned for 18 yrs and kept up with maintenance but the CEL has been on for 5 yrs.
It doesn't affect how it drives but I suspect the MPG would be better if I had the O2 sensors changed. The 2.8 V6 is not a race engine but it is fine for a grocery-getter. Other than the obnoxious light on the dash, it starts fine, runs and no indication of a problem.
I can't see spending $500 bucks to have the O2 sensors changed. Even if it increased MPG significantly, it would take 5+ years of less gas cost to break even. If I were younger than 78, I'd do it myself, but those days are gone.
Any thoughts on just driving and ignoring the CEL?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 17, 2023, 7:10 AM
Post #2 of 2
(1025 views)
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Re: 1999 Audi A6 O2 Sensor CEL
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Where did you get the idea that it needed 2 0/2 sensors?
Have you even had the stored codes read?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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