I would take as many electrical parst as possible.  Like fuel pump,
relays, AFM, heat sensor, digital meter, electric tape, hammer, small
compressor, towing rope, reflective triangle, jumper cable, two quarts
of oil, a set of basic car tools like the ones they sell in super
stores, a set of tire repair kit, light bulbs of all kind, hose clamps,
latex gloves and leather gloves, flash lite, nail clipper, hydrogen
peroxide, paper towel, Bently manual, timing lite, etc...
Most of these you should have in the car all the time.  Check spare tire
before.  See if your wheel nuts come off now.  It is not fun to find it
out later that they are stuck forever and your wrench rather breaks than
they come loose.  Some brake fluid is good, and some of the smaller
hydraulic parts won't take up room either.  If you plan to be away from
the city make sure you won't miss a thing. All these will not invite
break downs but surely scare them away.  Whe I rent out vans I include
most of these.  Someone thought the car is likely to break down that's
why I put all there.  It is a very complicated machine with many
accesories, boiling water, burning hot oil, with lots of surprises to
offer.
Did I forget anything?

Zoltan Kuthy
Seattle, Washington
425-775-4646

VW Westfalia Campers for Rent!
http://rentavwcamper.com

Had a vacation lately?