well allen as a young mechanic i sugest u check for any moisture aronud your HT leads and connecters which can be found under the bonnet of your car if you dont know how ask YOUR local mechanic to check them for you unfortunnately if u do find any moisture use a DRY cloth to wipe around the area and then spary either WD40 or tesco maintenance spray over the area this will include the batterys ground and negative connecters hope this helped below i will leave an explenation on how moisture spawns around your cars electrics
well moisture usually occurs after driving your car for long with out performing car maintenance basically its a weekly check that.... well you just check tyre pressure oil and stuff so learn yourself or else its back to shelling out cash to that greedy mechanic bye now ps im twelve years old
vw mechanic, December 2010