How much are you prepared to pay for a car diagnostic?

Advertising on line locally for your new self employed business - so remember you are going to need to register for self employed with the HMRC and pay class 4 NI contributiion, keep books, make a tax return every year about all your income and all that for a few bob - not really worth it when most local garages don't really charge for a diagnosis on the basis that you are going to get your car fixed there.