[Error-Rak]

Dear Q50 Org.

This is my first post and I am sharing the solution to a problem I had so all can benefit from it.
I had Key System Fault and Chassis System Control Fault problem

After checking I got Can Comm Problems but it wasn't clear from where

I took it to a good garage.
It turns out that the Trunk Start/Stop battery is very weak and needs to be replaced and that made the BCM go into sleep mode.
The technician reset the BCM and Changed the battery to Varta and it works now!

This is the battery I use. It fits perfectly and is from the best brand Varta.

Thanks

 

[Solow_Soslow]

Dear Q50 Org.

This is my first post and I am sharing the solution to a problem I had so all can benefit from it.
I had Key System Fault and Chassis System Control Fault problem
View attachment 108294 View attachment 108295

After checking I got Can Comm Problems but it wasn't clear from where
View attachment 108296

I took it to a good garage.
It turns out that the Trunk Start/Stop battery is very weak and needs to be replaced and that made the BCM go into sleep mode.
The technician reset the BCM and Changed the battery to Varta and it works now!

This is the battery I use. It fits perfectly and is from the best brand Varta.
View attachment 108297
View attachment 108299
View attachment 108301
Thanks

Hey I had an identical issue in my audi and It haunted me for 4 months replacing everything and getting no results. Do your gouges work?rps , mph and are you getting any sort of ABS lights or warnings? I'm not sure how this specific system is wired but in my audi it ended up just being a wheel speed sensor which is a 20$ fix. The way its interlinked to every system it just throws out a Xmas tree of lights and will scare the piss out of ya. But anyhow look into it, if your lucky that's all it is .