After a recent lengthy conversation with.... someone... (ahem... cough... cough! ) this topic came to mind - What are the basic tools needed to work on these cars... and which are the most essential -anyone? I don't have time this moment to list my whole toolbox, but - for starters, here's my 2 cents: Flatblade & Phillips screwdriver sets. Pliers - 2-3 varieties of needlenose, some vice-grips, slip-joint, 12" and the largest channellocks, and some long-reach pliers. Metric 6-pt. sockets, 1/4" & 3/8", standard & deep, 5mm-21mm, plus 22mm, & 24mm, extensions (wobble and standard, sometimes a loooong extension is needed as well - consider a 1/2" for long extensions, long 3/8" extensions can twist/flex), universal joint extensions, (flex joint sockets can also be handy at times, but probably not essential), and drive adapters (1/4 to 3/8, 3/8 to 1/4, plus 1/2" adapters if you get some 1/2" sockets) Torx bit set, and Torx socket set Metric Hex-bit socket set. Maybe larger sizes needed on occasion, like 14mm & 17mm. Metric combination wrenches 7mm-24mm Ratcheting metric wrenches (perhaps not absolutely essential, but handy, and sometimes THE tool for the job) Pry Bar Set Breaker Bar 1/2" & 3/8" ft-lb torque wrenches (in-lb torque wrench also useful) Floor Jack & 2-4 jack stands. Wheel chock(s) Safety goggles Ball Pein & 2lb & 4lb Dead Blow hammers (not needed often, but every once in awhile, you may need the BFH). Flashlight(s) - a headband light is useful, as occasionally is a flex-shaft light Inspection mirror magnetic pickup tool spring-loaded 'finger' pickup tool Metric feeler gauges (needed for valve adjustments on earlier BMW's) Allen/hex wrench set (metric) 11mm flare nut wrench (needed for brake line fittings) - Long swivel spark plug socket - (yes, you can use the spark plug tool in the trunk toolbox) However, this is much handier; the problem w/ a regular spark plug socket (for me, anyway) is that, unless you have a locking extension, the socket stays stuck on the spark plug instead of the extension (when installing, that is), and takes a good bit of effort to pull off the plug w/ some pliers or vice-grips. Drill & Drill Bits Ok, that's a start... what'd I forget?