All of the information on this site is based on what's worked for me. Your mileage may vary, as the saying goes.
Please do NOT attempt any of the maintenance described on this site unless you are a competent mechanic. If you're in any doubt, please talk to a qualified mechanic before proceeding - doubly so since some of the information is presented as being "worth a gamble before you face a £1,000+ garage bill".
No batteries included.