O2 sensor testing diy p0135
#1
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My Ride: 2008 528xi (Silver)
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Does any know how to test a 5 wire o2 sensor (maybe in Bentley manual) for a 528xi 2008. I have 105000 mile's, so i wanna rule out bad wiring or faulty sensor. Also does anyone know where i can purchase a cheap OEM sensor, for bank 1 sensor 1 (bmw# 11787558055). I have checked via ODB2 and the bank2 sensor 1 is running at 780 Celsius, while bank 1 sensor 1 is at 580 degrees Celsius (this sensor is throwing the code).
Anyway to test the sensor or wiring harness?
And where can i buy cheapest sensor?
Anyway to test the sensor or wiring harness?
And where can i buy cheapest sensor?
#2
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My Ride: '06 530i, '07 C280 4matic, '98 ML320
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I bought 2 pre-cat O2 sensors for $216 in July last year from Amazon. That's the lowest price I found for Bosch OEM O2 sensors.
I don't know a reliable way of testing the O2 sensor without scope.
I don't know a reliable way of testing the O2 sensor without scope.
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My Ride: '06 530i, '07 C280 4matic, '98 ML320
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I replaced O2 sensors as a preventive maintenance; didn't have any codes/check-engine-light. My car had 135K miles when I replaced the O2 sensors.
If I were you, I'd replace both sensors. If one is giving error code, the other one is not too far away from failing.
If I were you, I'd replace both sensors. If one is giving error code, the other one is not too far away from failing.