CEL w/ o2 Sensor, Replaced O2 and still throwing codes
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 30
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C320
CEL w/ o2 Sensor, Replaced O2 and still throwing codes
Had a CEL for a bit of time, so I decided to change both the front o2 sensors out with ones from on my '02 c320.
Went to
http://www.boschautoparts.com/Vehicl...artFinder.aspx
I bought this, Upstream Right:
And then this, Upstream Left:
Both part numbers are what Bosch recommends for my car. Took it to my local shop to have them change it out, as I needed them to look to see if I needed new control arms (which I do).
Once I replaced them, CEL was still on. Did a reset with a hand tool, then it came back on with P0134 and P0135 codes. Sometimes the car idles rough now. If I remember correctly, Bank I Sensor 1 is the passenger side (right) of the vehicle (cylinder 1 is on the 'left' side of the engine if you are looking at the car from the front)
Did I purchase the wrong o2 sensor? Or? It seems one of the sensors seems to work OK, but the other one is not working.
Went to
http://www.boschautoparts.com/Vehicl...artFinder.aspx
I bought this, Upstream Right:
And then this, Upstream Left:
Both part numbers are what Bosch recommends for my car. Took it to my local shop to have them change it out, as I needed them to look to see if I needed new control arms (which I do).
Once I replaced them, CEL was still on. Did a reset with a hand tool, then it came back on with P0134 and P0135 codes. Sometimes the car idles rough now. If I remember correctly, Bank I Sensor 1 is the passenger side (right) of the vehicle (cylinder 1 is on the 'left' side of the engine if you are looking at the car from the front)
Did I purchase the wrong o2 sensor? Or? It seems one of the sensors seems to work OK, but the other one is not working.
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
While the sensor connect properly to the connector socket, it should be OK,
do you check if there is any leaks in the sensors area or cats joints..!??!
ZAYED,,
do you check if there is any leaks in the sensors area or cats joints..!??!
ZAYED,,
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 30
Likes: 0
C320
When I take it back to the shop I'll have them look for it.
MBWorld Fanatic!
Joined: Aug 2006
Posts: 7,053
Likes: 398
From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
I like M112, it's a great Engine, exactly the same of M113 platform,
Emission system is these Engines are little sensitive to the ECU, during to the EGR recycle,,
BTW; do you recently removed or change any of cats....??
ZAYED,,
Emission system is these Engines are little sensitive to the ECU, during to the EGR recycle,,
BTW; do you recently removed or change any of cats....??
ZAYED,,
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
P0134 = O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135 = O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
Your engine orientation is correct. Cyl one is bank one RHS bank from drivers seat.
You either have a dud sensor or a wiring/plug issue.
P0135 = O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
Your engine orientation is correct. Cyl one is bank one RHS bank from drivers seat.
You either have a dud sensor or a wiring/plug issue.
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Thread Starter
Junior Member
Joined: Dec 2007
Posts: 30
Likes: 0
C320
Replaced o2 sensor again with
Mercedes-Benz Oxygen Sensor - BOSCH - 0258006167 / 16167 - NEW OEM MB O2
Bosch 0258006167 / 16167 - MB # 0015405017 - Direct Fit
Still throwing the same codes. Probably wiring harness from ECU to o2 plug?
Mercedes-Benz Oxygen Sensor - BOSCH - 0258006167 / 16167 - NEW OEM MB O2
Bosch 0258006167 / 16167 - MB # 0015405017 - Direct Fit
Still throwing the same codes. Probably wiring harness from ECU to o2 plug?
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