slickhillsy
05-22-2023, 05:52 AM
Hi all…
New to the forum, unfortunately I have a seemingly critical and baffling issue with my 2016 C7.5 RS6 Performance and thought I’d try and tap some knowledge and insights here.
In summary, my car has developed an electrical fault that completely disables the car. When driving under normal conditions the car just dies, immediately, as if unplugged from the mains. Oddly, the only thing remaining live are rear lights and minimal MMI. Often the dash freezes with the speedo and rev counter fixed at the point the car died. To fix the issue it’s a disconnect the battery, leave for at least an hour and try again with same results.
The car is currently with my local specialist for just over 2 months (QST in Haywards Heath) and they have completed the following work…
- Replace the 2 relays.
- Replaced the Tyre Pressure Monitor sensors.
- Replaced the 2 body control sensors.
- Battery holds a good charge.
Without any success. QST are doing all they can but are beginning to run out of ideas so thought I’d see if I could help by expanding the thinking here.
Has anyone experienced anything same similar they could share? Any feedback is gratefully appreciated.
Many thanks – Mark.
New to the forum, unfortunately I have a seemingly critical and baffling issue with my 2016 C7.5 RS6 Performance and thought I’d try and tap some knowledge and insights here.
In summary, my car has developed an electrical fault that completely disables the car. When driving under normal conditions the car just dies, immediately, as if unplugged from the mains. Oddly, the only thing remaining live are rear lights and minimal MMI. Often the dash freezes with the speedo and rev counter fixed at the point the car died. To fix the issue it’s a disconnect the battery, leave for at least an hour and try again with same results.
The car is currently with my local specialist for just over 2 months (QST in Haywards Heath) and they have completed the following work…
- Replace the 2 relays.
- Replaced the Tyre Pressure Monitor sensors.
- Replaced the 2 body control sensors.
- Battery holds a good charge.
Without any success. QST are doing all they can but are beginning to run out of ideas so thought I’d see if I could help by expanding the thinking here.
Has anyone experienced anything same similar they could share? Any feedback is gratefully appreciated.
Many thanks – Mark.