2000 E320 and LAMBDA PROBES...
10-14-2014, 02:15 AM
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2000 E320 and LAMBDA PROBES...
Hello All,
I have a bit of a lumpy idle and decide to change the front O2 sensors. I checked prices online and found decently priced Bosch ones: 0 258 006 353
When I took my old ones out I saw that I have 2 part numbers, left o2 : 000 540 7617 and right: 000 540 8517
The 2 O2 sensors I orderd from Bosch had the same part numbers. I didn't recognize that left and right were different part numbers. When I checked my Bosch O2 order again I saw that for the sensors that I ordered they mentioned that they are for the right side. I figured that left and right bank act the same so a similar probe should not be an issue, the original different partnumbers might have to do with calble lenght or so. I mounted the Bosch sensors and immediately got a CEL: heating element codes for both left and right. Sensors worked fine, engine ran fine and I could see through live data that the sensors were giving a signal. After warming up the engine/sensors I deleted the codes and after restart with warmed up sensors the codes did not come back. Day after and cold start codes were back so it is the heating process that is too lsow or not working at all. Since the Bosch sensors were sold as for the right side I changed back the left one to the original mercedes probe. No code but slightly rougher idle. I waited for several hours to let all cool down and tried again, no codes and no CEL so it seems as if the left Bosch probe was causing the codes. Does anyone have an explanantion on why there are 2 different partnumbers for the O2 sensors left and right? Do they actually act differently? Is there a differemce in wiring?
Thanks for any tip,
Marc
I have a bit of a lumpy idle and decide to change the front O2 sensors. I checked prices online and found decently priced Bosch ones: 0 258 006 353
When I took my old ones out I saw that I have 2 part numbers, left o2 : 000 540 7617 and right: 000 540 8517
The 2 O2 sensors I orderd from Bosch had the same part numbers. I didn't recognize that left and right were different part numbers. When I checked my Bosch O2 order again I saw that for the sensors that I ordered they mentioned that they are for the right side. I figured that left and right bank act the same so a similar probe should not be an issue, the original different partnumbers might have to do with calble lenght or so. I mounted the Bosch sensors and immediately got a CEL: heating element codes for both left and right. Sensors worked fine, engine ran fine and I could see through live data that the sensors were giving a signal. After warming up the engine/sensors I deleted the codes and after restart with warmed up sensors the codes did not come back. Day after and cold start codes were back so it is the heating process that is too lsow or not working at all. Since the Bosch sensors were sold as for the right side I changed back the left one to the original mercedes probe. No code but slightly rougher idle. I waited for several hours to let all cool down and tried again, no codes and no CEL so it seems as if the left Bosch probe was causing the codes. Does anyone have an explanantion on why there are 2 different partnumbers for the O2 sensors left and right? Do they actually act differently? Is there a differemce in wiring?
Thanks for any tip,
Marc
10-14-2014, 07:13 AM
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The title is lambda probes, as in o2 sensors....
The question is why I have 2 different part numbers for the 2 front O2 sensors in my Benz. And when I replace them with 2 Bosch parts (identical to each other) only 1 of them gives me a heating element code. Are the 2 original benz sensors different for a reason (other then maybe cable length) and what is that reason? Maybe a different resistance in the element so the computer can distinguisg between both, or what?
regs,
Marc
The question is why I have 2 different part numbers for the 2 front O2 sensors in my Benz. And when I replace them with 2 Bosch parts (identical to each other) only 1 of them gives me a heating element code. Are the 2 original benz sensors different for a reason (other then maybe cable length) and what is that reason? Maybe a different resistance in the element so the computer can distinguisg between both, or what?
regs,
Marc
10-14-2014, 08:02 AM
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98 Brilliant Silver E320 Wagon
Your engine does take different right and left pre-cat sensors. I'm not exactly sure of the reason. I typically check 2 or 3 online vendors to confirm part nos. before ordering.
10-14-2014, 08:44 AM
#5
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The title is lambda probes, as in o2 sensors....
The question is why I have 2 different part numbers for the 2 front O2 sensors in my Benz. And when I replace them with 2 Bosch parts (identical to each other) only 1 of them gives me a heating element code. Are the 2 original benz sensors different for a reason (other then maybe cable length) and what is that reason? Maybe a different resistance in the element so the computer can distinguisg between both, or what?
regs,
Marc
The question is why I have 2 different part numbers for the 2 front O2 sensors in my Benz. And when I replace them with 2 Bosch parts (identical to each other) only 1 of them gives me a heating element code. Are the 2 original benz sensors different for a reason (other then maybe cable length) and what is that reason? Maybe a different resistance in the element so the computer can distinguisg between both, or what?
regs,
Marc
10-14-2014, 10:01 AM
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I don't understand your feedback Plutoe, a Lambda probe = o2 sensor... :
Lambda probes are used to reduce vehicle emissions by ensuring that engines burn their fuel efficiently and cleanly. Robert Bosch GmbH introduced the first automotive lambda probe in 1976,[1] and it was first used by Volvo and Saab in that year. The sensors were introduced in the US from about 1979, and were required on all models of cars in many countries in Europe in 1993.
So where is the confusion??
Greets,
Marc
Lambda probes are used to reduce vehicle emissions by ensuring that engines burn their fuel efficiently and cleanly. Robert Bosch GmbH introduced the first automotive lambda probe in 1976,[1] and it was first used by Volvo and Saab in that year. The sensors were introduced in the US from about 1979, and were required on all models of cars in many countries in Europe in 1993.
So where is the confusion??
Greets,
Marc
10-14-2014, 12:35 PM
#7
Out Of Control!!
The problem is that you are so misinformed that you are spreading the misinformation and the rest of the less learned who read this stuff assume it is correct---that is a problem!!
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10-14-2014, 05:40 PM
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Right, so lambda at value 1.0 is the perfect air fuel ratio, measured through 02 sensors. So I should better refer to O2 sensors instead of lambda probes. Will do so, never too old to learn.
Thank you for that information Plutoe.
But the questions still remains, what is the difference in the 2 front O2 sensors in my 2000 E320? Is it just cable lenght or is there some technical difference between the 2.
regs,
Marc
Thank you for that information Plutoe.
But the questions still remains, what is the difference in the 2 front O2 sensors in my 2000 E320? Is it just cable lenght or is there some technical difference between the 2.
regs,
Marc
10-14-2014, 07:09 PM
#11
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IIRC, the las time I bought O2 sensors, the Bosch universals had the same part number for both sides. The OE sensor has different cable lengths as you pointed out requiring different part numbers. Again, just going from memory as it has been a while.
10-15-2014, 01:03 PM
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'99 E320 Wagon
Right, so lambda at value 1.0 is the perfect air fuel ratio, measured through 02 sensors. So I should better refer to O2 sensors instead of lambda probes. Will do so, never too old to learn.
Thank you for that information Plutoe.
But the questions still remains, what is the difference in the 2 front O2 sensors in my 2000 E320? Is it just cable lenght or is there some technical difference between the 2.
regs,
Marc
Thank you for that information Plutoe.
But the questions still remains, what is the difference in the 2 front O2 sensors in my 2000 E320? Is it just cable lenght or is there some technical difference between the 2.
regs,
Marc
Hi Marc,
I apologize for our friend Plutoe over here. Although I don't know him, don't speak for him, I cannot but apologize for the way the useful information was delivered.
Not everyone has a lot of time to research stuff thoroughly, or we're (speaking for myself) out of our element while trying to give a **** about our cars and learning a new hobby. Speak to me about finances and law Plutoe and I'm in my element.
Let's not digress, useful info has been passed, and I hope Marc you can accept Plutoe's contribution like a diamond in the rough
.Cheers, and keep learning
Marius
