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Brand new C43 AMG Check engine

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Old 01-11-2018, 05:48 PM
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Brand new C43 AMG Check engine

Hello, just bought my first Mercedes and what a bad experience. 5kms out of the dealer and check engine light? How? I brought it back to the dealer same day as i picked it up. Heartbroken.
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Old 01-12-2018, 01:40 PM
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Originally Posted by Aveo22 View Post
Hello, just bought my first Mercedes and what a bad experience. 5kms out of the dealer and check engine light? How? I brought it back to the dealer same day as i picked it up. Heartbroken.
Any news from the dealer?
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Old 01-12-2018, 01:47 PM
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Just spoke to service and apparently its an emission leak. They are waiting to hear back from Merc Canada on what to do. Emission leak on a 11km car lol. Ridiculous man.
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Old 01-12-2018, 02:41 PM
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Maybe it's better for ya it happened right away.

Last edited by Terminator1; 01-12-2018 at 03:00 PM.
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Old 01-13-2018, 04:38 PM
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Originally Posted by Aveo22 View Post
Just spoke to service and apparently its an emission leak. They are waiting to hear back from Merc Canada on what to do. Emission leak on a 11km car lol. Ridiculous man.

Perhaps you didnít break-in the vehicle properly to 1000k/5000k(amg)? Thatís a big deal i think...
Both our 2016s gle+c300 have been perfect with no problems(besides an unpatchable runflat-flat tire..
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Old 01-13-2018, 06:12 PM
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Originally Posted by A2thek View Post



Perhaps you didnít break-in the vehicle properly to 1000k/5000k(amg)? Thatís a big deal i think...
Both our 2016s gle+c300 have been perfect with no problems(besides an unpatchable runflat-flat tire..
Going off his post heís only driven the car 3 miles before this issue appeared. 11 kilometers total = 6.8 miles, itís barely seen pavement.
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Old 01-13-2018, 07:04 PM
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We have recently had some 2018 AMG's that have had defective one-way valves on the intake lines running into the turbo - throws a purge-vale/charcoal-cannister CEL light - but in instake line one-way valve..
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Old 01-14-2018, 12:53 AM
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Is the break-in theory necessary? If yes, does anyone have a proper instruction on how to do it since i read so many different methods on break-ins. Dont know whos right or wrong.
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Old 01-14-2018, 12:56 AM
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Originally Posted by fabbrisd1 View Post
We have recently had some 2018 AMG's that have had defective one-way valves on the intake lines running into the turbo - throws a purge-vale/charcoal-cannister CEL light - but in instake line one-way valve..

They did tell me initially its intake related, then they said emission leak. At this point i dont think they know what it is. Hence they sent the diagnostics to MB Canada.
Mine is an 18' C43
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Old 01-14-2018, 01:49 AM
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Originally Posted by Aveo22 View Post
Is the break-in theory necessary? If yes, does anyone have a proper instruction on how to do it since i read so many different methods on break-ins. Dont know whos right or wrong.
I canít speak to AMGs, i wish i could...baby(s?).
But, I canít believe the first thing you didnít do, the night of your delivery, was read your ownerís manual.
I read mines(sic), that night, and i know there are detailed instructions on the break-in period.
Enjoy your dope AMG(eventually )
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Old 01-14-2018, 01:50 AM
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Originally Posted by A2thek View Post


I canít speak to AMGs, i wish i could...baby(s?).
But, I canít believe the first thing you didnít do, the night of your delivery, was read your ownerís manual.
I read mines(sic), that night, and i know there are detailed instructions on the break-in period.
Enjoy your dope AMG(eventually )
I wish i had the chance to lol. Check engine light came on when i got in front of my house haha!!
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Old 01-15-2018, 01:28 AM
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Well...might be same issue we wrestled this past week


On a new S63 - code came out as Purge/Charcoal-Filter - when in fact it was this obscure faulty line-integrated-check-valve - and you have similar line/valve in your C43 actually... photo attached - I am just saying it "might" be same issue
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Old Today, 01:41 AM
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Originally Posted by fabbrisd1 View Post

On a new S63 - code came out as Purge/Charcoal-Filter - when in fact it was this obscure faulty line-integrated-check-valve - and you have similar line/valve in your C43 actually... photo attached - I am just saying it "might" be same issue


So i got my baby back and they said it was the Anti Pollution sensor that went off because there is a very minor leak. Basically, that my car is polluting a tad bit more than the law of Canada Transport that Mercedes Benz has to abide by. They changed a specific piece which i currently dont remember the name probably because of the amount of joy im feeling having it back in my hands. Btw guys, this is a SICK fkn car to drive. Coming from an 07' Accord, It is a major upgrade. Have the amg package. Sport+ is just magical and the experience is something special.

2018 C43 AMG Coupe
- Black on black, Night edition, Alcantara seats, AMG Performance pckg, LED pckg, premium DUH for the Burmeister sound system but i heard some preferred the Harmon Kardon.
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Old Today, 01:43 AM
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Originally Posted by Aveo22 View Post
So i got my baby back and they said it was the Anti Pollution sensor that went off because there is a very minor leak. Basically, that my car is polluting a tad bit more than the law of Canada Transport that Mercedes Benz has to abide by. They changed a specific piece which i currently dont remember the name probably because of the amount of joy im feeling having it back in my hands. Btw guys, this is a SICK fkn car to drive. Coming from an 07' Accord, It is a major upgrade. Have the amg package. Sport+ is just magical and the experience is something special.

2018 C43 AMG Coupe
- Black on black, Night edition, Alcantara seats, AMG Performance pckg, LED pckg, premium DUH for the Burmeister sound system but i heard some preferred the Harmon Kardon.



Although i will ask them for the code of CE and compare it to what you said. Ran 100kms after dealership and still no CE so definitely a good sign. They ordered another part to change as well but 2 week backorder. Crossing my fingers it doesnt come back. Hell of a ride.
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