milan25

I just got downpipes and a tune installed. I got a dyno tune and my car is stopping on the freeway.

All of a sudden my throttle does nothing my car idles at normal idle (700 or whatever) and I'm going 70+mph

I have to pull over and turn my car off and then turn on for it to go back to normal

There are these two errors that come up. If anyone knows how to fix this, please let me know. Any Assistance would be very helpful

milan25

I have the 2015 Sedan, without Distronic

milan25

https://mbworld.org/forums/c63-c63s-...l-problem.html

Is there anything I can tell my tuner to better understand the situation

Ali_E55

change your tuner

skim7x

Very typical with custom tunes that are not tried and tested. Take it back to the tuner to get retuned... Or get a tune that is tried and tested. Custom tunes are great, but have hiccups that need to be sorted out, making the user go back and forth to get it just right. Welcome to the world of tuning.

JacobsT

I know what the issue is. Had the same thing happen to me.

It's quite an easy fix. It has to do with callibration. This happened when driving cruise control?
Seems like all the 2015-early 2016 models have this issue.

The tuner needs to drive the car for a bit, set a cruise control speed, it will give the error. Then remove the error from the logs and the issue will not return.

milan25

Awesome I will let him know!!

Bison600

Who tuned your car? Seems dangerous to happen while driving.

milan25

I think it only happens when I use cruise control