Brand New <700 miles and CEL
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
Last edited by tedboss1; Dec 6, 2019 at 01:39 PM.
Newbie
Joined: Dec 2019
Posts: 11
Likes: 4
GLC63
Cylinder Misfires
Just taken my 2019 GLC63 (6k miles) in as got the CEL during a spirited drive; trans in auto mode, foot to the floor, trans tried to shift from 2-3rd and wouldn't complete the shift - CEL came on and car lost power, vibrating like crazy and running really rough.
Took it to dealer, AMG got involved and requested certain testing and results to be sent to them - AMG now sending new fuel injectors.
Prior to this, few weeks back, after filling up with gas and pulling out of gas station, the car just shut down and left me rolling - like a sitting duck in traffic with a message on the dash telling me to see owners manual. Thankfully put in park, restarted and all was well. Took to dealer, checked electrics, wiring and grounds - apparently some were loose - hasn't occurred again since.
Took it to dealer, AMG got involved and requested certain testing and results to be sent to them - AMG now sending new fuel injectors.
Prior to this, few weeks back, after filling up with gas and pulling out of gas station, the car just shut down and left me rolling - like a sitting duck in traffic with a message on the dash telling me to see owners manual. Thankfully put in park, restarted and all was well. Took to dealer, checked electrics, wiring and grounds - apparently some were loose - hasn't occurred again since.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
After trying all morning to get hold of my service adviser he finally called me back at 1:30 pm telling me that the problem did not show up on startup this morning.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
Last edited by tedboss1; Dec 6, 2019 at 01:53 PM.
Super Member
Joined: Aug 2019
Posts: 881
Likes: 300
AMG GLC 63s Coupe
After trying all morning to get hold of my service adviser he finally called me back at 1:30 pm telling me that the problem did not show up on startup this morning.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
Newbie
Joined: Dec 2019
Posts: 11
Likes: 4
GLC63
After trying all morning to get hold of my service adviser he finally called me back at 1:30 pm telling me that the problem did not show up on startup this morning.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
Member
Joined: May 2018
Posts: 116
Likes: 4
From: North West
12-P31 C63 Coupe- 19-GLC 63 S COUPE -18-911 TURBO S 19 AMG GTR COUPE
call the dealer GM also if MB sends you a survey fill it out with your concerns you should get a call back. I hate to say it some family owned dealerships are terrible one and done car sales so they could care less.
MBWorld Fanatic!
Joined: Feb 2016
Posts: 1,577
Likes: 264
From: Portland, OR
C450, GLC43
I'm guessing there's only one MB dealer near you? If not, pick up your car and take it somewhere else. The service department is the biggest revenue generator for a dealership. Vote with your wallet. .
After trying all morning to get hold of my service adviser he finally called me back at 1:30 pm telling me that the problem did not show up on startup this morning.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
So now they are requesting permission from MB to replace no. 1 and 6 injectors.
He estimates that the car will not be ready for me until next Tuesday.
Also, there is no courtesy for me. I asked the service manager to call me.
I don't have any hopes that he will do anything.
In addition, they also refused to provide me with a copy of the diagnostic report as suggested by PCc63amg.
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Thread Starter
Junior Member
Joined: Aug 2019
Posts: 22
Likes: 0
2019 GLC 63
So far so good
Apparently, when my engine was made they used mis-matched injectors - like form different lot numbers. AMG instructed the dealership to order and replace all 8 injectors with new. Now numbers are all matched and so far no problems. This seems to be the general consensus across the globe as to the solution barring the few that had cracks in the head.
Junior Member
Joined: Apr 2019
Posts: 15
Likes: 5
GLC63 AMG
Apparently, when my engine was made they used mis-matched injectors - like form different lot numbers. AMG instructed the dealership to order and replace all 8 injectors with new. Now numbers are all matched and so far no problems. This seems to be the general consensus across the globe as to the solution barring the few that had cracks in the head.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
Here is an update for today:I called the dealer 3 PM on Monday to inquire about the status of my car.
The service adviser told me that 2 new injectors came in and are being installed as we speak. They will keep the car overnight start it in the morning and give me a call between 9 an10 AM in the morning.
I'm giving this dealer last chance the problem is not fixed I'm going to original dealer where I bought the car which is 50 km away from my house.
Now I worry that replacing only 2 injectors is going to perpetuate the problem?
The service adviser told me that 2 new injectors came in and are being installed as we speak. They will keep the car overnight start it in the morning and give me a call between 9 an10 AM in the morning.
I'm giving this dealer last chance the problem is not fixed I'm going to original dealer where I bought the car which is 50 km away from my house.
Apparently, when my engine was made they used mis-matched injectors - like form different lot numbers. AMG instructed the dealership to order and replace all 8 injectors with new. Now numbers are all matched and so far no problems. This seems to be the general consensus across the globe as to the solution barring the few that had cracks in the head.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
Just to let you know that I picked up my GLC this morning after 2 injectors replacement.
No CEL so far and the car seems to be running fine.
Time will tell if the problem has been solved.
I will be sending a letter to MB Canada describing my experience but I don't expect a replay.
No CEL so far and the car seems to be running fine.
Time will tell if the problem has been solved.
I will be sending a letter to MB Canada describing my experience but I don't expect a replay.
Member
Joined: Dec 2018
Posts: 97
Likes: 6
From: new jersey
17 c63s edition 1 cabriolet, 2018 gls450
would love an update
Hello i would love an update on what you did and etc. My friend currently has the 2019 GLC 63 and she having basically the same issues as you and we might do a Lemon Law case on this one. bought the car brand new and has less than 10k miles. dealership keeps saying its because of short drives. she lives on the east coast in PA. I never heard of a modern car needing 5-10 mins to warm up and i have a c63 myself and i beat it on hard and it has a tune.
Newbie
Joined: Dec 2019
Posts: 11
Likes: 4
GLC63
Hello i would love an update on what you did and etc. My friend currently has the 2019 GLC 63 and she having basically the same issues as you and we might do a Lemon Law case on this one. bought the car brand new and has less than 10k miles. dealership keeps saying its because of short drives. she lives on the east coast in PA. I never heard of a modern car needing 5-10 mins to warm up and i have a c63 myself and i beat it on hard and it has a tune.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
I'm happy to report that after changing the 2 injectors my CEL issue did not come back and the car is running fine since then.
I also do a lot of short trips in town and no CEL.
I had to really push the dealer hard to solve the problem. It took a long time and a lot of complaining on my part.
You can read my saga in my previous posts.
I also do a lot of short trips in town and no CEL.
I had to really push the dealer hard to solve the problem. It took a long time and a lot of complaining on my part.
You can read my saga in my previous posts.
Last edited by tedboss1; Apr 1, 2020 at 09:29 AM. Reason: more info
Junior Member
Joined: Apr 2019
Posts: 15
Likes: 5
GLC63 AMG
Update...now at 16,700 miles and no more issues after the fuel injector replacements.
Newbie
Joined: May 2017
Posts: 4
Likes: 0
GLK
Took delivery today after waiting 5 months for a custom order. Drove 5 miles and got the Check Engine Light. No Power. Towed back to the dealership. Advice? Should I try to return it?
Last edited by K9EBT; Apr 28, 2020 at 09:44 PM.
Newbie
Joined: Nov 2021
Posts: 7
Likes: 0
2021 GLC 43
So....I was driving on the highway today in my new GLC 43...and the CEL came on...took it into dealership and they are taking a look at it. Not sure wtf could have caused it as it only has 1840 miles on it and I followed proper break in. I have takin it to about 5000rpm twice (both of those were after 1500 miles). A bit frustrated as I have followed guidelines and was excited to start pushing it a little. At least my dealership was super friendly and gave me a loaner. They said that "They will take care of it"...hopefully they do and no other problems come up as this is a brand new car 
. Should know more Monday or Tuesday.
. Should know more Monday or Tuesday.
Senior Member
Joined: Nov 2021
Posts: 289
Likes: 69
From: Japan
Mercedes Benz AMG GLC 63s
Until you know what the possible issue is, there’s no point in anyone giving any negative speculation. All makers have issues within production even a Rolls. Human error creeps in regardless unfortunately…
Hopefully all is well mate.
Hopefully all is well mate.
