I'm expecting to have to replace the battery, jumping it off the X3 for now, will see how well it holds a charge when I get the engine running (was ok before but after a year stood up who knows).
From what I can gather I need a 27mm socket, already have the breaker for the wheels. I'm not at all familiar with the layout, am I right in thinking the 300's crank nut is just behind the fan, which I'll need to remove first?