I own a 2008 XC70. We parked up for just a few hours then got back to the car and opened her up on the remote, put the key in and absolutely nothing.
We put a battery booster on and after a few minutes we did start the car, there are no dashboard lights or instruments, nothing which is powered works ( seats/windows/rear hatch)
I travelled 80 miles and the drive was uneventful but still nothing powered worked, I then switched off . Upon switching on again he car is totally dead again
Any thoughts please?