Thank you kind sir
Yes I have to admit in the course of my lifelong large garage business until I was 40's when I sold up, and now my one man band specialist garage business I have always run them such. I would like 10 pence for every time I have been at regular garages sorting out some problem that they can't, and heard them answer the phone, obviously a call from a customer who has an issue, and the first words outta the garage guys gob is "Nuffink" to do wth wot we did M8"
Now, it might not be, that garage guy, (or me) when answering that call may well know that it won't be related, but the first words out of my mouth would have been "I am very sorry to hear that, please bring it back as soon as you can so I can take a look at it and sort this out for you" ..........
if it isn't related to the previous repair I will quietly show the customer the issue, explain why it is unrelated and offer to repair it for them at their cost and book it in. If it is something related to the repair then of course they get a lift home if serious, choice of whether to leave it here or when to bring it back, and it is fixed in front of anything else completely FOC. Sometimes, a pack of beers, a bottle, some chocolates etc depending on the customer and how big an issue will be left in the car for them upon collecting it. Sometimes a lift to and fro if they are remote to me and can't get a lift.
To get that in perspective, I have had 2 such "warranty" calls in 6 months this year, one was nothing to do with the work I did, an exhaust bracket had rusted and was rattling, I looked at it with the customer, he could see it wasn't the parts I'd fitted, I fixed it free of charge whilst it was on the lift, took me 15 minutes.
The other was an Alternator I supplied and fitted early last week shat it's pants 2 days later. It was a brand new OEM Bosch part, tested working perfectly after fitment, very rare failure rate on OEM parts, but like everything things can and do fail, it was fixed same day with a replacement unit delivered to me FOC by the supplier.
I am not the cheapest, I charge double what the local garages do, but half what the main dealerships charge, and they are 60 - 100 miles away depending where the customer lives.
I don't buy cheap parts, I don't work on un - serviced wrecks, but my regular customers appreciate the reasons why, and don't mind paying that premium.
I don't have to do that much work these days anyway, I mainly started this business to fund my Toyz and provide a much needed service locally. No website, no adverts, all work comes by word of mouth, which counts for a lot more in our area and for my own peaceof mind I can afford to be picky customer / vehicle wise.