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Wow really ? The O2 I guess was defective from the get go
Do I have a lemon ? Got another check engine light this morning and not very happy now. I had planned a weekend outing and can't take the car. I'm at a loss on how frustrated I am with MB and they will hear me on Monday . How can I explain this, can anyone chime in ?
Last edited by aviator787; Oct 18, 2024 at 02:24 PM.
If you don't have an ODBII reader, stop by your local Autozone, O'Reilly etc. and have them read out the error codes to know what is causing the CEL. A steady CEL is usually fine to drive and is typically related to an emissions issue. Can also be as simple as the fuel cap not sealing properly. A flashing CEL is a bigger issue and should be looked at immediately. Always a good idea to have an ODBII reader on hand. Nobody can tell you what's going on unless you have the error codes.
The lambda sensor could potentially be just a symptom of a larger issue. Any blue or white smoke coming out of the tail pipes? The electric turbo is also a source of issues with these cars. They tend to fail in the early models. It's a lot of new tech in these cars that hasn't proven itself on the road yet. If you buy a new model this early in its lifecycle, you better be prepared for teething problems. Most will advise you to skip the first and even the second model year of a new car. Most issues will usually be sorted out with the facelift. That's part of the reason why I never bought a pre-facelift model of any car.
Last edited by superswiss; Oct 18, 2024 at 03:50 PM.
If you don't have an ODBII reader, stop by your local Autozone, O'Reilly etc. and have them read out the error codes to know what is causing the CEL. A steady CEL is usually fine to drive and is typically related to an emissions issue. Can also be as simple as the fuel cap not sealing properly. A flashing CEL is a bigger issue and should be looked at immediately. Always a good idea to have an ODBII reader on hand. Nobody can tell you what's going on unless you have the error codes.
The lambda sensor could potentially be just a symptom of a larger issue. Any blue or white smoke coming out of the tail pipes? The electric turbo is also a source of issues with these cars. They tend to fail in the early models. It's a lot of new tech in these cars that hasn't proven itself on the road yet. If you buy a new model this early in its lifecycle, you better be prepared for teething problems. Most will advise you to skip the first and even the second model year of a new car. Most issues will usually be sorted out with the facelift. That's part of the reason why I never bought a pre-facelift model of any car.
Since this is my 2nd in a month and if it's any of the oxygen sensors again , can it be another underlying issue causing them to go bad ?
There doesn't seem to be any performance issues while driving though
Since this is my 2nd in a month and if it's any of the oxygen sensors again , can it be another underlying issue causing them to go bad ?
There doesn't seem to be any performance issues while driving though
The teething with this car is so far really bad
Yes, the lambda sensor (oxygen sensor) can fail due to contamination with oil etc. That could be due to a leak in the engine. Head gasket leak for example would let coolant enter the combustion chamber and that would then contaminate the sensor. Similarly for an oil leak. The former would be noticed as white smoke in the exhaust and the latter as blue smoke. It could also be an electrical issue. The sensor may not have been bad, but the wiring to it or something further up the electrical chain. Manifesting itself like a faulty sensor, and so replacing the sensor didn't actually fix the issue. Unfortunately, electrical problems are very hard to track down.
Last edited by superswiss; Oct 18, 2024 at 05:50 PM.
Ok so the CEL comes on and off after a few starts .
I hope the codes are stored
Just got my 3rd CEL light in 4 months .... The first one they had to replace o2 sensor , the second one disappeared on its own after 2 days but now not sure what it's complaining about this is becoming a real annoyance.
Just got my 3rd CEL light in 4 months .... The first one they had to replace o2 sensor , the second one disappeared on its own after 2 days but now not sure what it's complaining about this is becoming a real anoyance.
The code this time is a P0133 , my first visit was the lambda sensor before catalytic
Just got my 3rd CEL light in 4 months .... The first one they had to replace o2 sensor , the second one disappeared on its own after 2 days but now not sure what it's complaining about this is becoming a real anoyance.
The code this time is a P0133 bank 1 sensor 1 , my first visit the lambda sensor before catalytic was changed no other details
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