is it save to drive
If the CEL is steady and not flashing, it is safe to drive. The rich fuel mixture may damage the O2 sensor and catalytic converter. Do not drive a car with a flashing CEL. -- I'm not recognizing "16885" as a valid code.
It will have a "P" followed by 4 numbers, and even if you take out the '1' and use 'P' there is still no 6885 on the VW OBDII chart ..or P1688, I tried several variations and nothing
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