C-Class (W206) 2021 to

Engine light on (a month of ownership)

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Old 05-09-2023, 04:17 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Frenetic
I got the same codes on my brand new 2023 S500 and I never tinted my windows. No correlation.
What was the reason for the codes, dealership or you ever figured it out yourself?
Old 05-09-2023, 04:46 PM
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Originally Posted by W205C43PFL
Weird they didn't see anything, not even stored codes...
I guess they wanted to quickly dismiss me because I showed up on a Friday?

I didn’t go to my dealership though, I went to the one closer to my workplace. Will never go back there.
Old 05-09-2023, 04:53 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by giovane
I guess they wanted to quickly dismiss me because I showed up on a Friday?

I didn’t go to my dealership though, I went to the one closer to my workplace. Will never go back there.
I see, all they are thinking of is when is their shift is over, hopefully your experience is better in a different dealership and/or going there a different day. Monday is usually busy, Friday they usually slack off. So Tuesday-Thursday appointments are ideal.
Old 06-22-2023, 03:20 PM
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C300
Originally Posted by giovane
I tinted the windows the first week of April, the engine light came up on 4/27, it's not correlated.
Again, car is working just fine now.
Did the engine light ever come back on? I currently have an intermittent engine light and car has been at the dealership for like 3 weeks.
Old 06-22-2023, 06:41 PM
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Originally Posted by Lord_Rico
Did the engine light ever come back on? I currently have an intermittent engine light and car has been at the dealership for like 3 weeks.
No, it never came back. Now approaching 5k miles.
Old 06-29-2023, 01:02 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by giovane
No, it never came back. Now approaching 5k miles.
That is good news.
Old 08-02-2023, 05:35 PM
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2020 C43, 2008 E350
Originally Posted by giovane
maybe my car wanted to surprise me for our first month together.
1,700 miles on the odo, and first yellow engine light already.
no idea what it is, I’ll stop at the dealership on my way to work tomorrow. Car seems to run fine, hopefully it’s nothing.

140k miles with my A7 and I’ve never seen that light, not even once.
so far Audi 1 - Mercedes 0


Sorry to see you had bad luck, glad it worked out

I use to own audis and it was nothing but problems. Vowed to never get one again, so maybe it's just all comes down to chance.
Old 08-20-2023, 06:13 PM
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2023 W206 C300
Hi i also got check engine light ( not even 500 miles ) almost 1st month.. (this is my first car) should i take it directly to dealership?
Old 08-20-2023, 08:34 PM
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Originally Posted by Viz_mp
Hi i also got check engine light ( not even 500 miles ) almost 1st month.. (this is my first car) should i take it directly to dealership?
Update: I double checked my fuel cap (i.e opened it and closed it again). Then started the car and the light was still there.

Went to dealership and parked the car and when i restarted it again it was gone.. lol.. Im still thinking to show this to dealership still..
Old 08-25-2023, 03:33 PM
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2023 W206 C300
https://www.tsbsearch.com/Mercedes-B...54-21-P-076055

this is the root cause of this issue
Old 08-26-2023, 10:02 AM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Viz_mp
https://www.tsbsearch.com/Mercedes-B...54-21-P-076055

this is the root cause of this issue
Which is funny because the C 300 shouldn't have the drive unit (basically the two knobs on the steering wheel on the C 43 and C 63 S E Performance etc. but I am guessing the harness and wiring is there to save cost in production.

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