I went out to my garage this morning with the aim of changing T2 only to
find that my 19-mm open end wrenches were to big to fit the space and my
19-mm socket was too shallow to get around the electrical connector and
on to the nut.  It looks like job could be done with a cut-down 19-mm
open end wrench.

Is there a secret tool for this job?  Last time I installed T2, the
engine was out of the van.

John