Originally Posted by Vicar
Hi John
Interestingly my own car (a 2022 plus four auto) has just been to KH for a service etc.
one of the things I mentioned was a pinking sound under acceleration.
They told me it is “normal”.

After 1200 miles and some Redex & BMW injector cleaner the pinking sounds is gone.

JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger