2019 E63 rough idle
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Well,
At 149,000 miles
I was driving normally and then, ca-thunk. MIL came on and no power. Had to feather it but it was horrible.
Limped home.
No downshift
Does not rev passed 3000 rpm.
stalled numerous times.
interesting enough, just had the plugs changed less than 1000 miles prior.
Keep this thread posted on findings...
At 149,000 miles
I was driving normally and then, ca-thunk. MIL came on and no power. Had to feather it but it was horrible.
Limped home.
No downshift
Does not rev passed 3000 rpm.
stalled numerous times.
interesting enough, just had the plugs changed less than 1000 miles prior.
Keep this thread posted on findings...
Senior Member
Joined: Jun 2023
Posts: 425
Likes: 291
2018 AMG E63s Ed1
yes.
So intresting notes.
The dealer ship can see the error but also noted that the ECU reported 3% gas left when there was more than 3/4 full. So that is intresting.
So far they have not found anything and not been able to replicate. I drove the car there and it was running fine.
I think it has to do with the cylinder deactivation that engaged (it does not take much to engage) and then disengaged (ie went from 8 => 4 => to 8 in less than 1 second causing that thunk).
More than likely i will just keep an eye on it.
So intresting notes.
The dealer ship can see the error but also noted that the ECU reported 3% gas left when there was more than 3/4 full. So that is intresting.
So far they have not found anything and not been able to replicate. I drove the car there and it was running fine.
I think it has to do with the cylinder deactivation that engaged (it does not take much to engage) and then disengaged (ie went from 8 => 4 => to 8 in less than 1 second causing that thunk).
More than likely i will just keep an eye on it.
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
yes.
So intresting notes.
The dealer ship can see the error but also noted that the ECU reported 3% gas left when there was more than 3/4 full. So that is intresting.
So far they have not found anything and not been able to replicate. I drove the car there and it was running fine.
I think it has to do with the cylinder deactivation that engaged (it does not take much to engage) and then disengaged (ie went from 8 => 4 => to 8 in less than 1 second causing that thunk).
More than likely i will just keep an eye on it.
So intresting notes.
The dealer ship can see the error but also noted that the ECU reported 3% gas left when there was more than 3/4 full. So that is intresting.
So far they have not found anything and not been able to replicate. I drove the car there and it was running fine.
I think it has to do with the cylinder deactivation that engaged (it does not take much to engage) and then disengaged (ie went from 8 => 4 => to 8 in less than 1 second causing that thunk).
More than likely i will just keep an eye on it.
Senior Member
Joined: Jun 2023
Posts: 425
Likes: 291
2018 AMG E63s Ed1
Update: The dealership did not find anything. They reset the MIL and they also reset all adaptations and asked me to drive it hard,
I have been driving it fairly aggressive and no issues.
Opinion: I think the issue started when the car went from 8 cylinder mode to 4 cylinder mode and "something" happened and then it never got out of 4 cylinder mode leading to the low power and sputter condition.
Hopefully like posted above, the issue wont come back until 300,000+ miles
I have been driving it fairly aggressive and no issues.
Opinion: I think the issue started when the car went from 8 cylinder mode to 4 cylinder mode and "something" happened and then it never got out of 4 cylinder mode leading to the low power and sputter condition.
Hopefully like posted above, the issue wont come back until 300,000+ miles
Senior Member
Joined: Jun 2023
Posts: 425
Likes: 291
2018 AMG E63s Ed1
Update #2:
Ok after all that hoopla, the car has been running golden once again. About to trip 150,000...
With that said, I think (just a guess but due to the problem seen on Xentry) that the issue stems from the Vented AMG "silver" cap. I have since re-installed the OEM black fuel cap that came with the car just incase.
Ok after all that hoopla, the car has been running golden once again. About to trip 150,000...
With that said, I think (just a guess but due to the problem seen on Xentry) that the issue stems from the Vented AMG "silver" cap. I have since re-installed the OEM black fuel cap that came with the car just incase.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Update #2:
Ok after all that hoopla, the car has been running golden once again. About to trip 150,000...
With that said, I think (just a guess but due to the problem seen on Xentry) that the issue stems from the Vented AMG "silver" cap. I have since re-installed the OEM black fuel cap that came with the car just incase.
Ok after all that hoopla, the car has been running golden once again. About to trip 150,000...
With that said, I think (just a guess but due to the problem seen on Xentry) that the issue stems from the Vented AMG "silver" cap. I have since re-installed the OEM black fuel cap that came with the car just incase.
Senior Member
Joined: Jun 2023
Posts: 425
Likes: 291
2018 AMG E63s Ed1
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Which is a shame I mean the cap looks good and it is important because you know, we need to gas up pretty often with this beast and it is nice to be able enjoy the gas up more with the newer style cap.
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Senior Member
Joined: Jun 2023
Posts: 425
Likes: 291
2018 AMG E63s Ed1
As i said, no clue if this is the culprit BUT it wont help as most European cars do actually monitor the pressure in the fuel tank hence why most will kick MIL when the gas cap is left off.
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,229
Likes: 188
From: Toronto
2022 E53 AMG
It's common in the world of car that when a coil goes bad, you will not see a CEL right away as the car ECM needs time as it will try to resolve the problem on it's own by adding more fuel or removing fuel. Normally after 3 or 4 starts, the CEL will light up and then that is when the game of finding the problem, repeating the problem and then solving the problem starts.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Being an oem part it should not cause a CEL though, is it a design fault or just not working on this particular vehicle? What was that cap originally designed for? the AMG GT?
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
It's common in the world of car that when a coil goes bad, you will not see a CEL right away as the car ECM needs time as it will try to resolve the problem on it's own by adding more fuel or removing fuel. Normally after 3 or 4 starts, the CEL will light up and then that is when the game of finding the problem, repeating the problem and then solving the problem starts.
