So while the gripe about them going ahead and doing the work is probably legit, it also probably needed doing. Look at it from their point of view, the vehicle is on the hoist with the wheels off and the brakes apart. Do they put it all back together and park it out back while they contact you? Then bring it in and start again? Or complete the work it needs?
Not sying they where right in doing it if you only asked for a quote, but that's the thinking behind it.
Or else it's a misunderstanding and they assumed you did want it fixed, whether it was pafs only, pads+ machining, or pads and new rotors.
BTW, Rotors on new vehicles are much thinner than the old days ( to save weight) and some are not heavy enough to machine, even when new.
By normal driving our brake rotors and drums have material basically sanded off by the brake pads. They often produce ridges rather than simple smooth wear. This is caused by pebbles and grit from normal driving getting embedded into the pads most often. There are a set of numbers cast of stamped on ever drum and rotor that show the minimum safe turn thickness of that part. No shop should ever willingly exceed these numbers! When that thin they heat far more than a rotor should when stopping. This heat warps the rotor, can cause it to bust, ad can cause premature brake pad failure, potentially loosing the pad from its metal backing! This could cause a brake to suddenly pull violently. All bad news to the owner.
For most cars it no longer pays to turn rotors because they are quite cheap--like $20. Any turning is not beneficial. It can lead to warpage when you go through a puddle. Either way the rotors have to be installed and the pads. But then you've got ideal conditions, so far as the friction surfaces are concened.
Update: I reread the question. They installed the pads but did not turn them. That can be okay, as long as there is no pulse. I frequently replace pads without turning. But when it comes to replacement, new is the way to go.
Can't even do simple math honey? It's just better to put new rotors on. If you have the rotors machined they will just warp because they are so thin after machining metal off of them. Buy premium brake pads. The cheap ones (save you $15?) will just cause brake noise.
That looks legit. If you think they should not present you with a bill, consider your state's guidelines for customers rights.
Consider your agreement with them when you gave them the keys. what did the repair order actually say, when you signed it?
Then if your rotors are in question, get on the phone and price new ones.
Put them on yourself and whip slaves and bark orders at people.
The aftermath will be on you because they would be YOUR zombies, now wouldn't they?
That is, if you think changing brakes is free, skilled labor costs money, tools cost money. those workers need a paycheck, those taxes are expected by that local, state, federal or what have you?
They are predicting taking two passes on each rotor.
If you dont want that, drive away.
If you have a brake pulsation, you should be getting them cut on the car.
If they are out of spec in any way they can be measured, the business cannot service them and replacement is recommended.
Provided you would be operating the vehicle after repair with parts machined, but specs are outside tolerance.
yes, only during the machining process will they know if they are true and that depends on how much they they had to take off to get them true. Either way the best practice is to machine the rotors or replace when changing the pads and you needed to have it done. How much did they charge? If they robbed you I'd demand a discount if they gouged you.
Taking the highest number of 793 with a discard number of 748 there are only 45 thousands difference. A business card is thirty thousand thick. So there would not be enough material on the rotor to take it down to a smooth surface. And you need to remember they would have to take material off both sides, just not enough there. That is one problem with buying Chinese parts.
The thinner the old rotors after machining the faster they will warp and then you will scream because the steering wheel, brake petal and the rest of the car will shake when you use the brakes.
To answer your question, yes that's true. If the rotors are too thin,they will warp or worse. It sounds like there was a communication breakdown somewhere.
any time the pads are pulled, the rotors should be measured and either machined or replaced. what they are doing is a matter of safety really.
I took my car in for an estimate to see if the rotors could be resurfaced or replaced and get my brake pads changed. They presented me with a billl. They did it without permission. I don't want to fight I'm just too too tired. Here is my question, the measurements they wrote on the bill say that the right front rotor was .793. -796. The left was.790-.788 an and the discard is. 748 underneath it says that if they had resurface the rotors to put the new brake pads and they would have been down to minimum thickness my question is is that at least true?
"I'm too tired to fight it". Really?
