S-Class (W223) 2021 to Present

Check Engine light came on

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Old Jun 30, 2022 | 12:45 AM
  #1  
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2022 S580 Land Boat
Check Engine light came on

My odometer is at 270 miles and the Check Engine light came on. I was at a stop light, the car jerked and the light came on. The fault seems to be with the auto engine shut-off as the light for it became yellow also and the engine would not shut off at stop lights all the way back home. Earlier today the message came on saying “Break assist unavailable, blind spot assist unavailable” and blind spot assist really stopped working. A restart cleared it up.

Wildly disappointing for a brand new $156K vehicle. Started with the connectivity problems, now on to software and mechanical issues, all within the first two weeks of ownership. My heart is starting to fill with regret. I’ve bought countless new vehicles and never had anything like this happen, especially when they were brand new. I was hoping in the second model year most bugs would be worked out.
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Old Jun 30, 2022 | 01:04 AM
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Originally Posted by odesskiy
My odometer is at 270 miles and the Check Engine light came on. I was at a stop light, the car jerked and the light came on. The fault seems to be with the auto engine shut-off as the light for it became yellow also and the engine would not shut off at stop lights all the way back home. Earlier today the message came on saying “Break assist unavailable, blind spot assist unavailable” and blind spot assist really stopped working. A restart cleared it up.

Wildly disappointing for a brand new $156K vehicle. Started with the connectivity problems, now on to software and mechanical issues, all within the first two weeks of ownership. My heart is starting to fill with regret. I’ve bought countless new vehicles and never had anything like this happen, especially when they were brand new. I was hoping in the second model year most bugs would be worked out.
I made a short trip to the store today and back. While shutting the car off in the garage, I also seen something like the “Break assist unavailable, blind spot assist unavailable”. I didn't restart the car yet, but I hope it was just a glitch. I agree the notices are unnerving.

It is a big car and I need to be pulled in the garage as much as possible. I have a laser pointing from the garage door opener that points at the dash when I am about 10 inches from the wall. The gas pedal fights me those last few inches (the cars auto safety braking). I wonder if that could have triggered the warning?
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Old Jun 30, 2022 | 01:30 AM
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Originally Posted by Old Rocker
I made a short trip to the store today and back. While shutting the car off in the garage, I also seen something like the “Break assist unavailable, blind spot assist unavailable”. I didn't restart the car yet, but I hope it was just a glitch. I agree the notices are unnerving.

It is a big car and I need to be pulled in the garage as much as possible. I have a laser pointing from the garage door opener that points at the dash when I am about 10 inches from the wall. The gas pedal fights me those last few inches (the cars auto safety braking). I wonder if that could have triggered the warning?
Probably just a glitch, like mine was. But the check engine light is definitely not a glitch, I restarted the car after it’s been shut off for a while, the light is still on. I ordered an OBD-II reader from Amazon, which will be delivered tomorrow morning, at least I’ll be able to read the codes to see what caused it and whether it’s safe to drive to the dealer. Definitely way more adventure than I was hoping to have with this car. I guess everything is relative and to Rolls Royce owners the price of this car is chump change, but it is MB’s flagship vehicle and one would expect a lot of care and effort to be going into it. Doesn’t seem to be the case. My friend’s S580 has been plagued by suspension issues from its second or third week and definitely qualifies as a lemon at this point. I was hoping mine would be different.
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Old Jun 30, 2022 | 02:01 AM
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To be expected. Totally normal in a world that's going to hell in a handbasket.
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Old Jun 30, 2022 | 08:55 AM
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No more MB:(
These cars have basically become appliances, so much tech, year one models, and overly complex. No surprise. That's what warranties are for.
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Old Jun 30, 2022 | 12:08 PM
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The code is U0442, Invalid data received from ECM/PCM. This really can mean anything - oxygen sensor, bad ECM, bad ECM harness, who knows... The light went off after the car ran for a minute. About to leave for the office, will see how the drive goes. If the light comes back on, will call the dealer <sigh>.
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Old Jun 30, 2022 | 02:08 PM
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Could just be one of those phantom CEL's, it happens sometimes. Fingers crossed it doesn't become a thing.
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Old Jun 30, 2022 | 04:58 PM
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Might give you less grief if you put the car in it's place. Get it on the freeway and give it a few WOT pulls to let the ECU know who's boss.
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Old Jun 30, 2022 | 11:28 PM
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Originally Posted by Senecat
Might give you less grief if you put the car in it's place. Get it on the freeway and give it a few WOT pulls to let the ECU know who's boss.
Haha...thanks for that, gave me a good laugh. The car behaved itself all through the day with no more issues. I'm sure as it's sitting in the garage right this moment, it's devising a new devious plan on how to properly disappoint me.
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Old Jul 1, 2022 | 08:42 PM
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FORT MYERS ELECTRIC CO
Put electrical tape over it
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Old Jul 1, 2022 | 09:35 PM
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Disregard.

Last edited by Senecat; Jul 2, 2022 at 01:32 AM.
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Old Jul 1, 2022 | 09:36 PM
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FORT MYERS ELECTRIC CO
Originally Posted by Senecat
W223 is a NGRZ. Let this all go to the memory hole. Disregard.
Going to remember that, sir
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Old Jul 12, 2022 | 07:57 PM
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My car just stalled tonight on drive home, check engine light is on. Guess I am spending tomorrow at the dealership.
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Old Jul 12, 2022 | 08:26 PM
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Originally Posted by Rockland
My car just stalled tonight on drive home, check engine light is on. Guess I am spending tomorrow at the dealership.
Do you have an OBDII scanner? If you don't, I recommend the one I just got from Amazon. It's about $100 and pairs with your cellphone via a BlueTooth and has a great little companion app for the phone. You can get a conventional reader for much cheaper too. I am really curious what your code is for the CEL.

ODBII Reader, Bluetooth ODBII Reader, Bluetooth
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Old Jul 12, 2022 | 08:35 PM
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Originally Posted by odesskiy
Do you have an OBDII scanner? If you don't, I recommend the one I just got from Amazon. It's about $100 and pairs with your cellphone via a BlueTooth and has a great little companion app for the phone. You can get a conventional reader for much cheaper too. I am really curious what your code is for the CEL.

ODBII Reader, Bluetooth
Thanks. I don’t have the scanner. Will let you know tomorrow.
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Old Jul 12, 2022 | 08:59 PM
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Since this OBD2 scanner thing is brought up, I admit I have never used one.

What is its main purpose, besides the obvious of giving you the error codes?
Then, as far as the advantage of knowing the error codes concern, is it that you are less likely scammed by a MB dealer?

Is one easy and reliable to use? Can it hurt/corrupt the car? If it is a one-way reading, then maybe not?

Does an unit work easily across MB/BMW/Audi etc models of different generations?

How do I know if an unit can read the codes of a W/V 223? And, who is using what for their W223 here?

Sorry for the tons of questions as I am a newbie.
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Old Jul 13, 2022 | 09:07 AM
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Originally Posted by odesskiy
Do you have an OBDII scanner? If you don't, I recommend the one I just got from Amazon. It's about $100 and pairs with your cellphone via a BlueTooth and has a great little companion app for the phone. You can get a conventional reader for much cheaper too. I am really curious what your code is for the CEL.

ODBII Reader, Bluetooth
this morning I turned car on and the check engine light isn't coming on.
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Old Jul 13, 2022 | 09:13 AM
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Originally Posted by Rockland
this morning I turned car on and the check engine light isn't coming on.
If it's not critical, the CEL goes away after third restart but the code is still in the system and can be read via the OBDII connection by you or the dealer.
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Old Jul 13, 2022 | 04:12 PM
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Maybe the scanner should be an item on the factory build sheet; but then I would be afraid the scanner would have faults as well.
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Old Jul 13, 2022 | 08:33 PM
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Originally Posted by bishop64
Since this OBD2 scanner thing is brought up, I admit I have never used one.

What is its main purpose, besides the obvious of giving you the error codes?
Then, as far as the advantage of knowing the error codes concern, is it that you are less likely scammed by a MB dealer?

Is one easy and reliable to use? Can it hurt/corrupt the car? If it is a one-way reading, then maybe not?

Does an unit work easily across MB/BMW/Audi etc models of different generations?

How do I know if an unit can read the codes of a W/V 223? And, who is using what for their W223 here?

Sorry for the tons of questions as I am a newbie.

By law every car sold in the United States since January 1, 1996 has an OBDII connector, it’s a universal way to run diagnostics on the vehicle. Modern cars also provide a slew of real-time data from the vehicle’s computer.

ODBII on Wikipedia
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Old Jul 13, 2022 | 09:24 PM
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Originally Posted by odesskiy
If it's not critical, the CEL goes away after third restart but the code is still in the system and can be read via the OBDII connection by you or the dealer.
they told me they think engine just misfired.
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Old Jul 14, 2022 | 12:56 AM
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223.168 & 213.012 & 906.633 & 214.005
Originally Posted by odesskiy
By law every car sold in the United States since January 1, 1996 has an OBDII connector, it’s a universal way to run diagnostics on the vehicle. Modern cars also provide a slew of real-time data from the vehicle’s computer.

ODBII on Wikipedia
But it is mainly the physical spec, protocol and emissions related stuff that the mandatory support covers. Even workshop tools from big brands (like Bosch) do not cover all control units equally well as the genuine Mercedes tool does. The most simple tools throw only codes, one needs to google for the likely meaning and google even more for the likely repair (not always pinpointing to a specific part). The genuine tool gives all that support.

Cheap OBD readers may have good performance/price ratio.
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Old Jul 14, 2022 | 12:59 AM
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Originally Posted by Rockland
they told me they think engine just misfired.
OK, perhaps so but why? It isn't just a single misfire that brings the check engine light. Don't know what else could cause this if absolutely nothing wrong with the car, bad fuel?
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Old Jul 14, 2022 | 04:08 AM
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I was thinking the same thing, it's an unusual culprit to finger. The O2 sensors are a way more likely to cause a random CEL, I mean if your going to make a wild guess why not go for better odds?
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Old Jul 14, 2022 | 07:10 AM
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Originally Posted by Diesel Benz
But it is mainly the physical spec, protocol and emissions related stuff that the mandatory support covers. Even workshop tools from big brands (like Bosch) do not cover all control units equally well as the genuine Mercedes tool does. The most simple tools throw only codes, one needs to google for the likely meaning and google even more for the likely repair (not always pinpointing to a specific part). The genuine tool gives all that support.

Cheap OBD readers may have good performance/price ratio.

Originally Posted by odesskiy
Do you have an OBDII scanner? If you don't, I recommend the one I just got from Amazon. It's about $100 and pairs with your cellphone via a BlueTooth and has a great little companion app for the phone. You can get a conventional reader for much cheaper too. I am really curious what your code is for the CEL.

ODBII Reader, Bluetooth
So will this reader work with the W223?
I like how its BT wireless,
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