Help with P2A00 error code
Thread Starter
Junior Member
Joined: Aug 2016
Posts: 19
Likes: 2
MB R320 2009
Help with P2A00 error code
Hi,
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
Thread Starter
Junior Member
Joined: Aug 2016
Posts: 19
Likes: 2
MB R320 2009
Junior Member
Joined: Aug 2016
Posts: 72
Likes: 10
From: Ottawa, Ontario
2015 Cadilac Escalade ESV, 2010 MB R350 Diesel
Hi,
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
Thread Starter
Junior Member
Joined: Aug 2016
Posts: 19
Likes: 2
MB R320 2009
Thank you for reply.
Visit to dealership confirmed only one O2 sensor on R320.
Price range:
520+HST at dealership
the same Bosh - at Exoparts (Toronto) - 360+HST
the same Bosh at MAT - 420+HST
aftermarket - 280 at MAT
120 at Tec Comp. Got it with 1 year warranty, 14 days replacement. Never seen before warranty on computer/sensor components.
Will try.
UPDATE:
cleared the code and it did not return. Drove all day yesterday and passed emission this morning. Good to go for two more years!
Going to return O2 sensor.
Visit to dealership confirmed only one O2 sensor on R320.
Price range:
520+HST at dealership
the same Bosh - at Exoparts (Toronto) - 360+HST
the same Bosh at MAT - 420+HST
aftermarket - 280 at MAT
120 at Tec Comp. Got it with 1 year warranty, 14 days replacement. Never seen before warranty on computer/sensor components.
Will try.
UPDATE:
cleared the code and it did not return. Drove all day yesterday and passed emission this morning. Good to go for two more years!
Going to return O2 sensor.
Bank one means the cylinder head that is the most forward of the 2 heads. Sensor 1 means the upstream oxygen sensor. You will have to erase the codes anyway after instalation of the sensor. You should be able to run all but one monitor within 30-50km. If you want to tackle this yourself, you should at least install an OEM part as an aftermarket part may give too big a range and in effect set another code.
Last edited by MZen; Sep 26, 2016 at 11:29 AM.
Senior Member
Joined: Jul 2013
Posts: 493
Likes: 14
84 300d 2009 e320 bluetec (retired)/, now 2012 E350 4-matic blueefficiency automatic
If your oxygen sensor is bad, it will reduce the fuel economy and may damage the dpf, cat and/or engine.
Bosch makes the AFR sensor for Mercedes.
The Bosch AFR sensors are Under $150 at FCPEuro in the US. FCP warranty is for owner’s life.
Amazon is about $40 less with questionable year warranty of one year. Some Credit cards extend it to two years. I got one on Amazon for $50 once.
The AFR should last over 150,000 miles but don’t even come close in the bluetec.
Bosch makes the AFR sensor for Mercedes.
The Bosch AFR sensors are Under $150 at FCPEuro in the US. FCP warranty is for owner’s life.
Amazon is about $40 less with questionable year warranty of one year. Some Credit cards extend it to two years. I got one on Amazon for $50 once.
The AFR should last over 150,000 miles but don’t even come close in the bluetec.
Newbie
Joined: Nov 2020
Posts: 1
Likes: 0
S600 CLS55
Hi,
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
I got P2A00 code on 2009 R320 diesel.
My code reader says "O2 Sensor Circuit Range/Performance. Bank 1 Sensor 1"
I purchased Alldata subscription recently, yet there is no information there about this code. I can change O2 sensor myself, but which one? Where is Bank 1? Is it really about O2 sensor or related to something else?
Has anyone experienced such problem and what was the solution?
My situation complicated by necessity to pass emission test by the end of the month. Here in Canada it is done by reading codes, so my R will not pass it in present condition.
Help!
Any help is greatly appreciated!
I want to know the solution to the original problem as my S600 has exactly the same issue... ANYone?
