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CEL came on today. Help with codes

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Old 07-13-2015, 06:09 PM
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2013 C250 Sport
CEL came on today. Help with codes

Started the car to leave work and noticed the CEL was on. Got home plugged my scanner tool in and these 2 codes came up. P2A00 and P0135. Seems like an O2 sensor problem. Went ahead and erased them and will take the car for a spin later to see if it comes back on. Anyone else have these come on? Car still seemed to run fine with the CEL on.

Last edited by dudeitsmattx; 07-13-2015 at 06:23 PM.
Old 07-13-2015, 08:33 PM
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W204 C300 4Matic - R170 SLK230 Kompressor
Yea definitely 02. I believe the right side upstream a/f sensor will fix you up.

Not worth hoping the sensor will fix itself. If it throws a fault ditch it. Cats are too expensive to gamble with.
Old 07-14-2015, 11:01 AM
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Yeah I don't plan on messing with a cat. Codes have not came back on yet since I cleared them. So we will see.. If they come back I will look into new sensors.

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