ahh
i will take a look at anything, i hardly ever charge for initial diagnosis, further diagnosis i make a nominal charge if i do the job if not i charge flat rate £20 per hour
depending on the customer i will extend credit on labour, parts don't leave my drive until paid for in full
i don't normally get any problems this way
although saying that i said i would do a full service and look into a running fault on a car for a girl i know.......... i said (as i know she is hard up and doesn't earn much) i would do the service for £50 plus parts at cost to me then unless its something major i would do the fault at no labour plus parts (i suspect it just needs a service) she said thats expensive ........ ffs you can't help some people