The cooling system can be a bit temperamental with the M5 when it comes to airlocks and DIY but I am thinking of doing all the work on the Disco myself and get a local radiator shop to do the service on the unit.
Is this a naive notion on my account or are they simple to service? Anything I should be aware of that can cause problems for the unitiated?
Any suggestions on the best coolant money can buy that is suitable for these engines?