Bmw E46 Brake Rotor Thickness

Measure the brake rotor thickness to determine if they need replacing using a micrometer. When measuring, measure in a few different spots and use the lowest number. Factory BMW rotors have minimum thickness stamped on the brake rotor hub flange.

Front brake rotor minimum thickness: All models except M3 20.4 mm (0.80 in) M3 26.4 mm (1.04 in). Which in turn means the absolute safety limit of rotor thickness is probably about 18.8mm front and 15.8mm rear (for 323/325/328 - add 3mm for 330). To put it another way, the BMW rotors and pads are designed in such a way that if you reuse the rotors at minimum thickness, your pad wear sensor will go off before your rotors get too thin.

BMW E46 M3 Front Brake Pad & Rotor Replacement DIY - YouTube

Guys, what is the minimum thickness you should on your Rotor before you need to change? I current have around 12MM thickness and i'm wondering if it's time for me to install new Rotors and not just Brake pads. Thanks in advance for your reply. Dex.

My rear rotors are grooved pretty good so I checked them today they are.638 and.646 thick rear,front are.858 and.857 thick. What is the min. thikness allowed? I did not remove the rotor to check the minimum thickness.

E46 330I Rotor Size at Robert Locklear blog

This minimum thickness is stamped on the edge of the rotor. This tech article will go over measuring your brake rotors to see if they require replacing. When checking brake rotor thickness, measure the rotor in about 10 different spots.

Mark each spot to keep track of where you have measured. If the rotor does not meet the minimum thickness. Change them.

TMS1518 - Cross-Drilled & Floating Brake Rotors - Front - E46 M3 CSL ...

You can get a set of OEM rotors from UUC or Turner for next to nothing and do the job yourself. In fact for $289 you can get front and rear rotors and pads plus sensors and fluid; so innexpensive. No self resepecting BMW mechanic is going to say you can just change pads.

You bought a high performance car and there comes an expectation of maintenence. Also, getting them turned is. Upgrade to ECS 2-piece E46 M3 CSL rotors for increased brake torque and thermal capacity.

Reuse your existing calipers, pads, lines, and hardware! 10X Entries For Our Spin To Win Sweepstakes! INFORMATION BMW brake discs/rotors are stamped with a Minimum Thickness. The stamped minimum thickness is used to determine whether the brake discs/rotors require replacement during a brake service, such as pad replacement. However, some motor vehicle inspection procedures require the measurement of brake discs/rotors.

An additional minimum thickness specification for the purpose of motor. Thanks Ron. Looks like they were not cross drilled at the time, but other than that they do look pretty close.

What size were they? On a slightly different note, are our front brakes (caliper, carrier, rotors) similar to the e36 or the e46? BMW E46 Brake Rotor Specification Checking BMW 325i (2001-2005), BMW 325Xi (2001-2005), BMW 325Ci (2001-2006), BMW 325ti (2001-2004) Pelican Parts Technical Article This tech article will go over measuring your brake rotors to see if they require replacing.