2003 Mercedes Benz c320 4matic...got the p0430 code Catalyst System Efficiency Below Threshold (Bank 2)...which side is bank 2? I have left hand drive by the way.
Oh and change all 4 O2 sensors. Bin there done that.
I'm hearing from other people that bank 2 is the driver side. and is bank 2 the rear cat?
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