Power loss anyone?
#76
Senior Member
Thread Starter
It sounds like you have other issues. Perhaps malfunctioning exhaust flap actuator. When that happens, it will put your car into limp mode.
#77
MBWorld Fanatic!
Have a 2020 C43 that I picked up new in late February. I haven’t driven it much due to working at home during the pandemic. Only has about 600 miles.
I’ve had several Starter Battery Critical/12V notifications during that time. Despite driving for over 2 hours the past few days, the Starter Battery still says Partly Charged and it says it’s too low to enter Standby Mode.
Car feels slow, and although I’m making boost and nearly 365 lb-ft of torque (which is still shy of target, but not abysmal) via the Engine Data, I cannot get past 267 horsepower - no matter how hard I bury the throttle.
I’m over 100 horsepower down on power. Is this likely the limp mode triggered from low voltage?
I’ve had several Starter Battery Critical/12V notifications during that time. Despite driving for over 2 hours the past few days, the Starter Battery still says Partly Charged and it says it’s too low to enter Standby Mode.
Car feels slow, and although I’m making boost and nearly 365 lb-ft of torque (which is still shy of target, but not abysmal) via the Engine Data, I cannot get past 267 horsepower - no matter how hard I bury the throttle.
I’m over 100 horsepower down on power. Is this likely the limp mode triggered from low voltage?
#78
MBWorld Fanatic!
My car is doing this also. I trapped 117 tuned and then 116 and then 114 after a 2 hour cool down.
I just flashed the car back to stock tune and its slow as hell now.
I just flashed the car back to stock tune and its slow as hell now.
#83
Senior Member
Im asking because i broke my leg 2 months ago and im still fcked up 😐. I do start the car every month let it run for 20minutes in the garage, but i cant drive it and i hope it doesn't go into limp mode 😳😳
#84
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Join Date: Jun 2019
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AMG C63s Sedan , AMG C43 , AMG G63 , GLK 250
#85
Senior Member
Whats going to happen if it sits in a 75F degree garage for 3 months without a trickle charger?
I got a brand new battery February this year.
#88
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700HP Facelift converted PFL C63 S Coupe
Mine got it after 4 weeks sitting while I was getting my wheels repaired.
To avoid it you'll need to turn the car on at least once every 3 weeks and let it charge.
#89
Senior Member
How do i get it out of limp mode? How much will it cost?
#92
Senior Member
I bought and Autel Maxi AP200 bluetooth dongle which i didn't get a chance to use yet. Is it possible to reset soft limp via that?
#95
Senior Member
#96
Since this requires xentry to clear, does anyone know affordable xentry system we can purchase for in home diagnostic?
Can more advanced reader like icarsoft mb 2 see and clear this code?
https://www.icarsoft.us/Product/s-30...oft_MB_V2.html
Can more advanced reader like icarsoft mb 2 see and clear this code?
https://www.icarsoft.us/Product/s-30...oft_MB_V2.html
Last edited by AMG82; 09-04-2020 at 08:55 PM.
#97
MBWorld Fanatic!
Since this requires xentry to clear, does anyone know affordable xentry system we can purchase for in home diagnostic?
Can more advanced reader like icarsoft mb 2 see and clear this code?
https://www.icarsoft.us/Product/s-30...oft_MB_V2.html
Can more advanced reader like icarsoft mb 2 see and clear this code?
https://www.icarsoft.us/Product/s-30...oft_MB_V2.html
I'll let you know what it says in xentry
Edit. I've been waiting all day for this guy to log into my laptop and activate it and he just said sorry something came up and can do it tom. Does anyone know how to use the key gen to activate xentry that can log in with team viewer and do it.
Last edited by skratch77; 09-04-2020 at 09:13 PM.
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AMG82 (09-04-2020)
#98
Senior Member
How to get out of soft limp mode
My car might be in limp mode due to low battery what should i do to get it out of it?
Do i have to schedule an appointment with the service advisor?
Is this something they can do while I wait?
How much clearing the code should cost?
Im Waiting for my Eurocharged stage 2 handheld. Will tuning the car remove the soft limp mode?
Sorry for this many questions 😅 I just can't find answers anywhere 😪.
Do i have to schedule an appointment with the service advisor?
Is this something they can do while I wait?
How much clearing the code should cost?
Im Waiting for my Eurocharged stage 2 handheld. Will tuning the car remove the soft limp mode?
Sorry for this many questions 😅 I just can't find answers anywhere 😪.
#100
MBWorld Fanatic!
Join Date: Jun 2019
Location: Flat Earth
Posts: 1,453
Received 399 Likes
on
307 Posts
AMG C63s Sedan , AMG C43 , AMG G63 , GLK 250
My car might be in limp mode due to low battery what should i do to get it out of it?
Do i have to schedule an appointment with the service advisor?
Is this something they can do while I wait?
How much clearing the code should cost?
Im Waiting for my Eurocharged stage 2 handheld. Will tuning the car remove the soft limp mode?
Sorry for this many questions 😅 I just can't find answers anywhere 😪.
Do i have to schedule an appointment with the service advisor?
Is this something they can do while I wait?
How much clearing the code should cost?
Im Waiting for my Eurocharged stage 2 handheld. Will tuning the car remove the soft limp mode?
Sorry for this many questions 😅 I just can't find answers anywhere 😪.
- Pull over and turn the car off. Remove the key.
- Do not press the gas pedal or any other buttons on the car.
- Wait 20 seconds.
- Start the car and drive to see if it is out of limp mode.
(I have a mechanic that used to work at MD, that has the tools, so I goto him for 99.99% of things if needed.