Coolant drain XK8


I’m changing the coolant liquid in my XK8 After draining the radiator I noticed that only 5 liters were drained. As far as I know the complete system contains 9.5 liters. Were are the remaning part of it?
In the engineblock? If so how to drain this?



There is a block drain on the left side of the engine. (aft of the motor mount)
You will need a 17mm hex bit tool and it is usually very tight.


Thanks Bob.
I found it but decided to leave it because the steering column block the access.
The coolant in the block are now mixed with new one. Later on I can always drain the radiator again.