I went to an OPC yesterday (not my usual one) with a friend who was test-driving a 911. I tagged along just for a 'nose' really.

Whilst there I was offered a free 'visual health check' on my car which I accepted. The printout shows the following faults...

1) Number six coil pack cracked!

2) Oil leak from bellhousing area/tensioner seal.

3) Rear discs corroded/lipped on inner face.

What's a number six coil pack? Is this oil leak serious?

Should I get these things sorted urgently?

Any suggestions would be gratefully received - thanks guys.