Car wouldn't start
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
Car wouldn't start
Went to an appointment this morning, when I got back in my car it would not start with a "PARK Parking Brake See operators manual" then it got progressively worse, red alerts about SOS, then asking to place key on the mat, then telling me to press brake pedal (which was locked) etc etc. I called Roadside which was not a good experience, then got disconnected. While on the phone I got an alert saying my car alarm was going off, but it wasn't. After a last ditch effort to start it again it worked and I just got home.
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
Just dropped it off at the Dealer knowing that it will happen again. The service advisor came back later to tell me that there was a major software update waiting for the car that takes 1-4 hours to install.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
Senior Member
Joined: Jun 2022
Posts: 373
Likes: 115
From: SFV
2025 C300
Just dropped it off at the Dealer knowing that it will happen again. The service advisor came back later to tell me that there was a major software update waiting for the car that takes 1-4 hours to install.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Went to an appointment this morning, when I got back in my car it would not start with a "PARK Parking Brake See operators manual" then it got progressively worse, red alerts about SOS, then asking to place key on the mat, then telling me to press brake pedal (which was locked) etc etc. I called Roadside which was not a good experience, then got disconnected. While on the phone I got an alert saying my car alarm was going off, but it wasn't. After a last ditch effort to start it again it worked and I just got home.
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
Just dropped it off at the Dealer knowing that it will happen again. The service advisor came back later to tell me that there was a major software update waiting for the car that takes 1-4 hours to install.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
Wish these car manufacturers wouldn't be so damn guarded and secretive about these updates.
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
One was a recall (software update) for Driving Assistance and the other was an update for the rear SAM module. I am hoping this will fix many issues I was having including phantom braking. A lot of my personal setting were reset to default so I will find out more when I get a chance to configure them again.
MBWorld God!
Joined: Dec 2019
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One was a recall (software update) for Driving Assistance and the other was an update for the rear SAM module. I am hoping this will fix many issues I was having including phantom braking. A lot of my personal setting were reset to default so I will find out more when I get a chance to configure them again.
Here is an example (not your car shown though) : https://cimg6.ibsrv.net/gimg/www.mbw...23044e391.jpeg
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
It is already set to late, because it braked on me three times as I was merging into Freeway traffic almost causing a wreck! In the last month, the phantom brakes are applied while I am backing out of my garage into my private driveway with nothing around. I am frankly appalled at how bad Mercedes is at designing this stuff.
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MBWorld God!
Joined: Dec 2019
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It is already set to late, because it braked on me three times as I was merging into Freeway traffic almost causing a wreck! In the last month, the phantom brakes are applied while I am backing out of my garage into my private driveway with nothing around. I am frankly appalled at how bad Mercedes is at designing this stuff.
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MBWorld God!
Joined: Dec 2019
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I guess you are aware of the fuel pump recall issued right? Assuming that fixes the starting issue? https://www.autoevolution.com/news/m...d-217340.html#
MBWorld God!
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Found the NHTSA document: https://static.nhtsa.gov/odi/rcl/202...3V445-9258.PDF
MBWorld God!
Joined: Dec 2019
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Anyways the original post the link was from: https://mbworld.org/forums/w213-amg/...ml#post8807119
Junior Member
Joined: Feb 2023
Posts: 21
Likes: 6
From: Hillsboro, Oregon
2023 C300 4Matic, 2006 SLK280 6-speed stick
There's thread here on my no-start issue, too. In my case it was crushed wires & pins on a connector in the wiring harness that terminates in a control module down in the driver's (LHD cars) footwell. Your problems might not be just software related. In addition to the no-start condition, a full scan of fault codes revealed faults in several modules caused by crosstalk from the damaged harness. If your problems persist, you might want to tell the dealer to check the wiring harnesses.
Newbie
Joined: Oct 2022
Posts: 4
Likes: 1
C300
I had a starting issue 2 months ago. It started, then died after a few seconds. Did that about 5 times in a row, then started ok, but had a check engine light on. Dealer read the codes and tried to replicate it over 3 days driving it about 20 miles each day, but couldn’t find anything wrong.
Then a week ago the check engine light came on again. I scanned the codes and it said U1120, P0606, P1463. The last code said A/C pressure sensor insufficient pressure change so I thought there was something wrong with the A/C system. But, apparently my OBD scanner was wrong, as the dealer says that the in tank fuel pump is the problem, and there is a back order on a seal with no eta. So it sounds like this is what the recall mentioned above is about.
Then a week ago the check engine light came on again. I scanned the codes and it said U1120, P0606, P1463. The last code said A/C pressure sensor insufficient pressure change so I thought there was something wrong with the A/C system. But, apparently my OBD scanner was wrong, as the dealer says that the in tank fuel pump is the problem, and there is a back order on a seal with no eta. So it sounds like this is what the recall mentioned above is about.
Junior Member
Joined: May 2023
Posts: 47
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GLC
Crazy. Different car, but we have a new Acura that does similar. Nothing causes greater doubt in your passengers minds about your driving skills more than when the car jams on the brakes on the freeway on/off ramp. I'm just waiting for that day when an 18 wheeler can't stop as fast as I do and jams right into the back of my car.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
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Crazy. Different car, but we have a new Acura that does similar. Nothing causes greater doubt in your passengers minds about your driving skills more than when the car jams on the brakes on the freeway on/off ramp. I'm just waiting for that day when an 18 wheeler can't stop as fast as I do and jams right into the back of my car.
Junior Member
Joined: May 2023
Posts: 47
Likes: 15
GLC
Don't know, but I can say it had a fuel pump recall a 1 or 2 years ago. I would guess there is a small number of vendors that make a lot of that stuff across brands.It's like these 48 Volt setups you see in MB...several other brands use that, whoever makers it, but for things other than what MB chose to...(softening the auto start feature) I just saw a video yesterday that the same company that makes Genesis GV70 (which is rear wheel drive biased unlike typical Kia/Hyundai which are front wheel drive biased) 4 wheel drive system is the same one that makes BMW's 4 wheel drive setup. I don't recall what the name of the company is but thought that was interesting.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Don't know, but I can say it had a fuel pump recall a 1 or 2 years ago. I would guess there is a small number of vendors that make a lot of that stuff across brands.It's like these 48 Volt setups you see in MB...several other brands use that, whoever makers it, but for things other than what MB chose to...(softening the auto start feature) I just saw a video yesterday that the same company that makes Genesis GV70 (which is rear wheel drive biased unlike typical Kia/Hyundai which are front wheel drive biased) 4 wheel drive system is the same one that makes BMW's 4 wheel drive setup. I don't recall what the name of the company is but thought that was interesting.
Proprietary software and hardware also plays a role plus some might just have better features/safety or cheaper(?) that MB opted for.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Don't know, but I can say it had a fuel pump recall a 1 or 2 years ago. I would guess there is a small number of vendors that make a lot of that stuff across brands.It's like these 48 Volt setups you see in MB...several other brands use that, whoever makers it, but for things other than what MB chose to...(softening the auto start feature) I just saw a video yesterday that the same company that makes Genesis GV70 (which is rear wheel drive biased unlike typical Kia/Hyundai which are front wheel drive biased) 4 wheel drive system is the same one that makes BMW's 4 wheel drive setup. I don't recall what the name of the company is but thought that was interesting.
When it comes to manufacturing I admit there is a lot to learn, a lot of fascinating things too actually.
Newbie
Joined: Jul 2023
Posts: 1
Likes: 0
W206 2023 C300 4matic
i have 2023 mercedes C300 4matic. car failed to start. press start button you just hear click and bunch of error messages on display. tried 5-6 times. just click and error codes. wouldnt start. waited and finally started after 15 min. it is at dealership now as of July 13 2023 and was told they will do software update.
a week ago, while driving from work at 92 deg F half way home car started blowing hot air. AC running , temp low but hot air. took to dealership and they gave car back after a day saying AC system fully functional, no leaks and the did AC system update.
Now, about a month ago i had issue with car startup. it would start and die immediately. I had 100 of codes flashing. took to dealership and was given back a day later
saying nothing found. All codes were clear. There is some serious issue with new cars and especially mine that is causing multiple issues and symptoms.
please share if other have similar startup issues with W206
a week ago, while driving from work at 92 deg F half way home car started blowing hot air. AC running , temp low but hot air. took to dealership and they gave car back after a day saying AC system fully functional, no leaks and the did AC system update.
Now, about a month ago i had issue with car startup. it would start and die immediately. I had 100 of codes flashing. took to dealership and was given back a day later
saying nothing found. All codes were clear. There is some serious issue with new cars and especially mine that is causing multiple issues and symptoms.
please share if other have similar startup issues with W206
Newbie
Joined: Apr 2023
Posts: 4
Likes: 0
W206 2022 C300
Went to an appointment this morning, when I got back in my car it would not start with a "PARK Parking Brake See operators manual" then it got progressively worse, red alerts about SOS, then asking to place key on the mat, then telling me to press brake pedal (which was locked) etc etc. I called Roadside which was not a good experience, then got disconnected. While on the phone I got an alert saying my car alarm was going off, but it wasn't. After a last ditch effort to start it again it worked and I just got home.
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
Question: If I take it to the dealer will it have codes stored or will it be a waste of time ?
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
i have 2023 mercedes C300 4matic. car failed to start. press start button you just hear click and bunch of error messages on display. tried 5-6 times. just click and error codes. wouldnt start. waited and finally started after 15 min. it is at dealership now as of July 13 2023 and was told they will do software update.
a week ago, while driving from work at 92 deg F half way home car started blowing hot air. AC running , temp low but hot air. took to dealership and they gave car back after a day saying AC system fully functional, no leaks and the did AC system update.
Now, about a month ago i had issue with car startup. it would start and die immediately. I had 100 of codes flashing. took to dealership and was given back a day later
saying nothing found. All codes were clear. There is some serious issue with new cars and especially mine that is causing multiple issues and symptoms.
please share if other have similar startup issues with W206
a week ago, while driving from work at 92 deg F half way home car started blowing hot air. AC running , temp low but hot air. took to dealership and they gave car back after a day saying AC system fully functional, no leaks and the did AC system update.
Now, about a month ago i had issue with car startup. it would start and die immediately. I had 100 of codes flashing. took to dealership and was given back a day later
saying nothing found. All codes were clear. There is some serious issue with new cars and especially mine that is causing multiple issues and symptoms.
please share if other have similar startup issues with W206
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
This POS died again, same issues. Flashing a myriad of error messages and just clicks and won't start. Roadside Rescue sent a tow truck but since the wheels are locked and car won't go into neutral they dispatched a specialty tow truck. Waiting on that now.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Sorry about that, perhaps a buyback is in order so you don't have to deal with this anymore?
Thread Starter
Member
Joined: Sep 2022
Posts: 156
Likes: 26
From: Texas
C300 W206 2022
I am looking into that now, not sure what criteria they use for a buyback. I am now getting 12v battery critically low alerts from the app. Car was just towed to Dealer.
Speaking of the App it is worthless too, now escalated to 2nd tier and they have been requesting different screenshots for over a month now. No resolution yet.
Speaking of the App it is worthless too, now escalated to 2nd tier and they have been requesting different screenshots for over a month now. No resolution yet.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
I am looking into that now, not sure what criteria they use for a buyback. I am now getting 12v battery critically low alerts from the app. Car was just towed to Dealer.
Speaking of the App it is worthless too, now escalated to 2nd tier and they have been requesting different screenshots for over a month now. No resolution yet.
Speaking of the App it is worthless too, now escalated to 2nd tier and they have been requesting different screenshots for over a month now. No resolution yet.
