DO I NEED TO REPLACE MY BRAKE ROTORS? BRAKE ROTOR REPLACEMENT ULTIMATE GUIDE PLUS BONUS INFO!

My rotor itself says 32mm minimum thickness; my factory service manual says 27mm. Which specification trumps?

Great tips thanks

Great video thank you! Very clear and detailed.

I have a 05 645ci.
The brake warning light illuminated. Wear pad indicator. Checking on the pad I see my rear rotors have these tiny Luminum hats on the hat of the rotor.
Are these rotors needed vs oem equivalent without these aluminum hats?
Also is it necessary to replace the brake pad wear indicator since the brake light came on?

I paid $90 CDN to have 2 rotors machined for a 2017 F150. The cost for new rotors was $200 each. So i saved $310.

However, on smaller vehicles i just replace rotors, as the cost of replacing vs. machining is similar.

Rotors are (very) expensive compared to brake pads. Kind of hard question, but how many sets of brake pads before a new rotor is needed ? Mechanic charge me a new rotor every time new brake pad !

I have some slight grooves on two rotors. Need need brake pads soon. Is it necessary to have all rotors done also? This would be the first time my car needs brakes. 59000 miles.

I get a little bit of shaking/grinding when I slow down which goes away the slower I go, but whenever I take a left turn I get a TON of grinding. Is that from worn rotors? I imagine my pads are fine, changed em last year.

Can rotors get grooving due to heating? Please explain. Thank You

I think most repair shops charge about $70 per corner (on car lathe). Good video! I usually just replace the rotors once they look like that.

Thanks for sharing!what if the rotors are still thick enough but they are warped can you have them turned and will that fix the problem? Thank you!

You have a lot of good information but you talk to much sorry

Thank you so much for this great video that actually answers the question "do I need to replace my rotors" in a specific and useful way!

Do a video on measuring the pads. thank you

Wonderful informative video. thank you

Very good video. Measurement errors could lead to a false decision especially when u are basing decisions on difference in the magnitude of one hundredth of a millimeter. A difference or variance of .03 mm is just crazy considering operator contribution to measurement error.

My 2008 Lexus GS 350, a used car I bought to replace a 2007 which was totaled, started making noises as if the wear-indicators came into play. Examining all four brakes, I discovered that the brake pads were fine; however, front rotors were worn below the minimum thickness, 27mm.

Not sure about you advice on minimum thickness, .01mm = 0.00039", pretty sure that is not making a difference on a set of pads! 28.4 vs 28.39mm

Thanks!

This video is amazing, thank you!

I’ve never had a vehicle that has enough room behind the dust shield where that rotor caliper would work

Must be great to live in a place where there’s no salt!!!!!

This guy a salesman. Do a reading and then walk out and tell the customer how much you’re going to cost them for no repairs that are needed.

Awesome job.... good info.

I appreciate this a lot, my car has been vibrating while going over 60 mph, and (results are inconsistent) sometimes will vibrate the car when braking. This morning, I gently pressed the brakes while going 35 and thought I was about to die because of how badly the car was rocking. It was full on death-metal head-banging.
Before I replace the tires (which definitely need to be) I’m definitely going to look into getting the brakes checked out

I have a question: Normally is there a difference in front and rear rotors? Thanks.

Great video on such a vital part of the braking system on a vehicle.

Another helpful video, thanks!

I have an E82 and an E84. I did a full set of rotors, pads and retaining clips on my E82 two years back no probs.
Last year, I did my wife's E84 xDrive front rotors and pads only the rears still had plenty of pad etc.
She started experiencing front brake squeal when cold especially when backing out of the garage.
This began a couple of months after I swapped the fronts for new.
All parts from my BMW dealer, I have a good relationship with the guys there.
Any ideas on the squealing?
I made sure to lube contact points well with the BMW brake grease supplied by the parts mgr.
Never had this issue w my E82 (sports pkg), different car of course.
Thanks again! I remember you N52 valve cover gasket video being a huge help on my car in the past!

Good video