I hope someone here can help me. Despite running perfectly, the "Check Engine" light on my '95 E320 came on and was diagnosed by the dealer as a bad o2 sensor, which they replaced (for $350). After resetting the computer, the light came back on within a week. Does anyone have a clue as to what might be going on here? Perhaps a bad sensor installed (they say it was checked and operatring fine)? I distrust the dealer and would love to have some insight before trying to get this resolved. Many thanks in advance.
- posted
20 years ago