Hi where is the best place to get a coilpack .Ive been on gsf website and they sell coil and amplifier seperatly but how do i tell which is faulty.
then you're looking at the wrong thing, the coil & amp are a single integrated object on mk3 and newer polos. It's the same for a 6n as a g40 too.
Sounds like you're looking at a mk2 polo one.
http://www.eurocarparts.com/ecp/c/Volkswagen_Polo+Coupe_1.3_1991/p/car-parts/engine-parts/ignition1/ignition-coil/?413440470&1&ff03409bc6e178c41ea94dd103502ccba8321ee3&000197
should be this one, get the beru one, dont get the cheaper ones. once bought a cheaper one and it failed after two days. beru one has been strong for over a year :)