Exhaust Button
06-04-2018, 10:22 PM
#1
Exhaust Button
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
06-04-2018, 10:26 PM
#2
MBWorld Fanatic!
Never seen that happen on a hood strut, the exhaust flaps stick after time, not sure if the motors overheat or the flaps themselves bind. We've replaced several exhausts for it, it's a known issue.
The following 4 users liked this post by ItalianJoe1:
06-04-2018, 10:27 PM
#3
Member
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
06-04-2018, 11:52 PM
#4
MBWorld Fanatic!
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
06-04-2018, 11:54 PM
#5
MBWorld Fanatic!
is this a GTs specific or a amg performance exhaust thing available on several models?
06-05-2018, 12:32 AM
#7
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AMG GTBS, AMG GTR Pro, AMG GT, C63 AMG, Porsche Panamera 4S, RX-7 FC Turbo II
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Any one else had this issue?
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06-05-2018, 12:35 AM
#8
Member
06-05-2018, 02:33 AM
#9
MBWorld Fanatic!
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
06-05-2018, 06:08 PM
#11
MBWorld Fanatic!
06-06-2018, 07:52 PM
#12
Are less downshift pops normal after driving for a while?
06-06-2018, 09:08 PM
#13
Super Member
You mean after the engine is warmed up or after so much mileage on the odometer?
06-06-2018, 09:46 PM
#15
Super Member
06-17-2018, 03:37 AM
#16
On my 2016 GT S I have noticed when I active sport mode for the exhaust, the red light illuminates as it should, but after driving for a while the light will go out. Pressing the button after this happens will not re-illuminate the light. The command system does indicate the modes are changing on button presses. Turning the car off and back on seems to correct the issue for a short period of time just not sure if there is an issue with the valves themselves when this happens.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
Any one else had this issue?
Also, has anyone had issues with the hood struts? I raised my hood to the 90 degree position and the passenger strut seems to be seized. Had to remove the strut entirely.
This actually happened to me , but for me it triggered a soft code which also reduced the boost and power of the car. Safety procedure ?
I tried changing the electronic actuator but it didnt solve the issue , the flap it self was stuck and because of the exhaust design as a one piece from the Dps to the end , the flaps cant be reached for a fix so the whole exhaust needed to be replaced.
After the replacing the exhaust everything worked perfectly.
This is the code
The following users liked this post:
rt7085 (06-17-2018)
06-17-2018, 08:17 AM
#17
This actually happened to me , but for me it triggered a soft code which also reduced the boost and power of the car. Safety procedure ?
I tried changing the electronic actuator but it didnt solve the issue , the flap it self was stuck and because of the exhaust design as a one piece from the Dps to the end , the flaps cant be reached for a fix so the whole exhaust needed to be replaced.
After the replacing the exhaust everything worked perfectly.
This is the code
I tried changing the electronic actuator but it didnt solve the issue , the flap it self was stuck and because of the exhaust design as a one piece from the Dps to the end , the flaps cant be reached for a fix so the whole exhaust needed to be replaced.
After the replacing the exhaust everything worked perfectly.
This is the code
Did the CEL actually come on? How did you know the car was in reduced performance?
Would your red exhaust light come on initially? Did the command system report that the exhaust was in S+ even when the button light wasn't responding?
06-17-2018, 09:38 AM
#18
Thanks for the information! Couple of followup questions:
Did the CEL actually come on? How did you know the car was in reduced performance?
Would your red exhaust light come on initially? Did the command system report that the exhaust was in S+ even when the button light wasn't responding?
Did the CEL actually come on? How did you know the car was in reduced performance?
Would your red exhaust light come on initially? Did the command system report that the exhaust was in S+ even when the button light wasn't responding?
Went to my mechanic to check the ecu for codes and found this soft code with xentry scan device.
and regarding the light on the button somtimes it turn on for a bit and the command system report it properly but after sometime the light goes off again and the command system doesnt show the current status as the picture I attached previously.
Took it to my dealer to confirm and got a new exhaust all went back to normal.
if your car is still on warrenty have it fixed in the dealer they will change it for you , or it will be a pricy fix i payed 5,000$ For a new exhaust with labor.
06-17-2018, 12:13 PM
#19
Member
No Cel , and tbh at the beginning i just felt it the car was too slow but to make sure i used a performance box to calculate the acceleration and it was way worse than usual so i figured out that something was wrong.
Went to my mechanic to check the ecu for codes and found this soft code with xentry scan device.
and regarding the light on the button somtimes it turn on for a bit and the command system report it properly but after sometime the light goes off again and the command system doesnt show the current status as the picture I attached previously.
Took it to my dealer to confirm and got a new exhaust all went back to normal.
if your car is still on warrenty have it fixed in the dealer they will change it for you , or it will be a pricy fix i payed 5,000$ For a new exhaust with labor.
06-17-2018, 02:25 PM
#21
Member
My car's exhaust muffler was replaced twice already. If this happens to me outside of warranty I think I will just go with an aftermarket system without the valve. I think this valve will be a common problem for owners later on.
In fact I'm itching for this IPE titanium exhaust. I ran an IPE exhaust on my Ducati 999R and that thing sounded like a beast!
https://www.ebay.com/itm/MERCEDES-BE...8AAOSwak5Z2Me2
In fact I'm itching for this IPE titanium exhaust. I ran an IPE exhaust on my Ducati 999R and that thing sounded like a beast!
https://www.ebay.com/itm/MERCEDES-BE...8AAOSwak5Z2Me2
06-17-2018, 05:22 PM
#22
No Cel , and tbh at the beginning i just felt it the car was too slow but to make sure i used a performance box to calculate the acceleration and it was way worse than usual so i figured out that something was wrong.
Went to my mechanic to check the ecu for codes and found this soft code with xentry scan device.
and regarding the light on the button somtimes it turn on for a bit and the command system report it properly but after sometime the light goes off again and the command system doesnt show the current status as the picture I attached previously.
Took it to my dealer to confirm and got a new exhaust all went back to normal.
if your car is still on warrenty have it fixed in the dealer they will change it for you , or it will be a pricy fix i payed 5,000$ For a new exhaust with labor.
The car does feel slower at times, what sort of performance number difference did you notice?
Time to go to the dealer I suppose.
06-17-2018, 06:46 PM
#23
My car's exhaust muffler was replaced twice already. If this happens to me outside of warranty I think I will just go with an aftermarket system without the valve. I think this valve will be a common problem for owners later on.
In fact I'm itching for this IPE titanium exhaust. I ran an IPE exhaust on my Ducati 999R and that thing sounded like a beast!
https://www.ebay.com/itm/MERCEDES-BE...8AAOSwak5Z2Me2
In fact I'm itching for this IPE titanium exhaust. I ran an IPE exhaust on my Ducati 999R and that thing sounded like a beast!
https://www.ebay.com/itm/MERCEDES-BE...8AAOSwak5Z2Me2
This is my third time replacing the muffler too , getting another exhaust is the way to go , im having catless dps thats why i dont need extra loud exauhst and i need the capability to shut the car sound when im having a headache. Thats why i went with the oem again , i prefer using oem consle button.
06-17-2018, 06:49 PM
#24
Based on your feedback I checked my information screen and the exhaust status reads the same as yours. What is weird is that if I look through the dynamic select settings on the main command screen it shows it changing.
The car does feel slower at times, what sort of performance number difference did you notice?
Time to go to the dealer I suppose.
The car does feel slower at times, what sort of performance number difference did you notice?
Time to go to the dealer I suppose.
The car went from 0-60 in 3.7 to somthing like 4.5 its way slower you should be noticing it. As if it switched to limp mode or other safety map , without giving you any indicator of that.
