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Constant oxygen sensor error even after swap

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Old Mar 12, 2023 | 07:00 PM
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jakubmomentum
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Constant oxygen sensor error even after swap
Hi,
I wanted to ask anyone if they might know what these codes are ? I have switched the oxygen sensor after the cat with a Bosch sensor and still getting the issues? Should I only buy mercedes or is there another common issue anyone has seen?
It’s a 08 e320 bluetec.



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