Customer questions

MERCEDES-BENZ A-CLASS (W168) A 140 (168.031, 168.131) - Diagnostic System (EOBD/OBDII) - P0302

Customer question from Apr 24, 2016, 11:25:23 AM
symptoms

  • non

Description

obd light lite but doesn't seem to effect performance

Answer from Apr 24, 2016, 7:13:06 PM

Hello shawng, thanks for your question in the community.
The failure Code P0302 means combustion missfires in Cyl. 2.
You have to make a pressure lost test noch these Cylinder.
It could be a mechanic error like a broken Piston-ring or a valve..
Please Check this at a cold and warm engine.
It could maybe an Electric failure from the OT-Sensor or an error from the increments wheel where the OT-Sensor is.
The Electric stripes could also have a contact failure

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