check engine light and o2 sensors

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Originally Posted by 100deltacharlie

Greetings
I have a 2003 boxter s. It started to over heat and the check engine light came on. Shop put in new thermostat that cured overheat prob. He said code for o2 sensor flashed. He reset comp and we drove a couple of trips( 100 miles or so) check engine light came on so he recommended 2 front o2 sensors.
1. Is this common at <35,000 miles
2. What is a fair price to replace..his estimate seems high.
Thanks
David772 486 3899

Very unusual to need new sensors at 35k miles. Get the actual codes and report back here. Often the O2 sensors are simply reporting a problem upstream so don't kill the messenger yet.