Minimum rotor thickness chart bmw This was on a vehicle where pads always consumed 1. For that, I didn't replace the carrier bolts. In extreme cases, this can also lead to loss of tightness on the You are misreading the chart. 4mm thick. Minimum Rotor thickness Car is a 2018 540i with the m sport brakes. Always replace both rotors on the axle at the same time. The maximum life of a disc rotor is achieved when it reaches what we call the “minimum thickness”. You are allowed 1. Keep in mind that if your pads are thin, BMW will just replace those and not the rotors. Last edited by Yuille36; 12-31-2020 at 12:44 PM . Front brake rotor minimum thickness: 3. 0 6-cylinder,4. I am measuring 20. Attachments. 102 inches). If the rotor does not meet minimum thickness Apr 6, 2020 · BMW says that AFTER rotors have reached minimum thickness, they are good for (1) one more set of pads. '04 Astro RWD in the rust belt that is Cape Cod. Oct 16, 2024 · A brake rotor minimum thickness chart specifies the minimum allowable thickness for brake rotors, ensuring safe and effective braking. If your brake rotor passes thickness but you have a pulsation while braking, replace the brake Dec 30, 2020 · So in order for BMW to justify replacing your rotors, that must be below 22. "An on ramp is a terrible thing to waste" A common root of the problem is DTV (Disc Thickness Variation). Bolts/threads looked okay so I reused them and torqued to spec. 12 in) Rear brake rotor minimum thickness: 3. The machine to spec, which is the minimum rotor thickness at pad replacement, and the discard spec, which is the measurement at which you toss the rotor. Resurfacing down to the minimum thickness is permitted, and the rotors can then be re-mounted with a new set of pads. Interesting. Jul 18, 2017 · When checking brake rotor thickness, measure the rotor in about 10 different spots. 4mm. 4i: 28. If you replace pads with Akebonos' you my never need pads or rotors Aug 22, 2009 · E39 525i/528i Front Rotors New = 22mm Minimum thickness = 20. 5mm! Is it possible that they don't wear at all? The rotor sizes have changed based throughout production, so it's not straightforward to simply pick the "335i" rotor, from what I can tell. 5 mm in the rear. Jan 22, 2015 · Anybody worth their weight in salt knows the minimum rotor thickness is stamped on the rotor. The rear rotors started at 12mm thick and should be replaced at 10. The car has 89,000 mi now; I was hoping to get at least one break and rotor replacement since I do have the extended maintenance warranty. Nov 30, 2017 · Andrew Markel visits minimum wear specification on brake rotors and how the specification is related to brake pad wear and how far the caliper has to push th Google BMW CCB rotor wear indicator and you'll see a BMW manual out there that shows you what to look for on the rotor. They are not M brakes. Show off your **KLR 650** (or **KLR 250** or **KLR 685**)! Post DIY guides to farkles and modifications, or photos of your in-progress or completed mod. 4mm and 28. If the measurement taken shows values below the MIN TH, then you must replace the rotor. I showed him the paperwork and he assured me that they had installed the correct rotors. Make/Model Year Application Qualifier Product Part Number A3ACURA 2011-2009 Base; Rear Min TH (Discs)/Max Diameter (Drums) (mm): 10 Disc Brake Rotor 1AMVR20237 A3 2011-2010 Rear; TDI Min TH (Discs)/Max Diameter (Drums) (mm): 10 Disc Brake Rotor 1AMVR20237 Feb 13, 2015 · For the rear rotors Maximum thickness is 24mm Minimum thickness is 22. 4 mm (1. May 20, 2007 · I found the numbers on Wolfgang's site. If they have a lip they probably ARE at minimum thickness. 89mm. If your brake rotor passes thickness but you have a pulsation while using brakes, replace brake rotors. Is the "Minimum thickness" stamped on the outer of rotors the absolute minimum allowable thickness or the minimum thickness that new pads can be fitted? For example, my ATE rotors are stamped minimum thickness 20. Jul 1, 2023 · Attach you will find our 2019 X7 40i brake pad and rotor thickness received today from BMW dealership shop. This Service Information bulletin replaces SI B34 05 08 dated August 2008 What’s New: • Model Information MODEL All INFORMATION BMW brake discs/rotors are stamped with a Minimum Thickness. Mine were at 18. DISC BRAKE ROTORS & DRUM BRAKES. Mine only made it 30k total before hitting minimum tolerance. Disc brake rotor minimum thickness (RMT) is the minimum safe working thickness of a rotor. Mark each spot to keep track of where you have measured. If the rotor does not meet minimum thickness Mar 10, 2021 · Tools You’ll Need for Accurate Measurement. Rear min rotor thickness is 20. 4mm for front. Does anyone know the minimum thickness allowed for these rotors? 2021 330i track Jan 28, 2021 · Also the BMW spec is to measure the width of the used rotor in 8 random locations and use the lowest one as your value. Minimum Brake Rotor Thickness Chart: Truck service manual ,1984 Aviation Machinist's Mate J 1 & C. I've searched on google but couldn't find any info for the G01 Oct 30, 2019 · Ok, I have been trying to find the spec for my F25 2014 X3 x35i rear brake rotor width. Variation in the thickness of the rotors chew away at the brake pad as they come in contact with high points in the disc, causing the pad to wear unevenly. 1mm of ware left on the disc. If resurfacing down to minimum thickness doesn't completely refinish the surface, replacement is recommended. Hmm BMW rotors are $80-90 per Dec 5, 2023 · This minimum thickness is stamped on the edge of the rotor. Mine measured 22mm in the front and 14. 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. The minimum on rear rotors will be either 28. I also didn't notice any loc-tite on them either. 73 in), Rear brake rotor minimum thickness: All models except M5 8. Join Date: Jun 2020 Dec 4, 2023 · When checking brake rotor thickness, measure rotor in about 10 different spots, mark each spot to keep track of where you have measured. Hope this helps! Jan 1, 2024 · When I took it in the other day to get an oil change, a BMW super/manager said that the front rotors are the same size as the rear rotors; therefore, being too small. 49 in) I used a tape measure on my rotor and am getting 29-29. 6mm of total wear, so the rotors should be replaced when they are 28. Aug 27, 2016 · If your '08 has the same rotors as my '13 than 18. From various searches here it seems that minimum thickness on normal 330 mm 328 rotors is the minimum thickness required to put another set of pads on. The lowest value should be used as reference for the entire rotor. 5 mm thickness which based on the TIS chart would be above spec as far as I can tell. 73 in). A take-off rotor that measures at or less than minimum thickness is a throw-away. BMW recommends to check the thickness at 3 points on the disc, the top The lowest value should be used as reference for the entire rotor. My current goal is to fix my brakes. 3. That bulletin said rotors were to be replaced if the rotor thickness was not 0,8 mm above min rotor thickness. 2015 BMW X5 x35i M-Sport. An additional minimum thickness Nov 24, 2016 · - BMW, MINI and Rolls-Royce vehicles: nominal dimension minus 2. catalogue - 2010/11 V130910. If you are serious about the car pay the $200 and have a local BMW independent shop inspect it. Sep 21, 2018 · Engraved on the side of your rotor you can find the minimum operational thickness. 6mm wear down to 26. I believe M3 Euro floaters are 27mm. Oct 21, 2019 · When checking brake rotor thickness, measure the rotor in about 10 different spots. Once you sign in, follow these instructions to access our Repair Guides. If your brake rotor passes thickness but you have a pulsation while using the brakes, replace the Jan 9, 2017 · I remember a service bulletin on brakes on one make where measuring rotor thickness was part of a noise fix where new brake pads were installed. Dec 20, 2020 · If it is too thin then you should replace the rotors. Replace brake rotors in pairs. The stamped minimum thickness is used to BMW brake discs/rotors are stamped with a Minimum Thickness. Nov 23, 2021 · The nominal or new thickness. Replacing rotors that are above minimum thickness, and have no performance issues is money down the drain. This tech article will go over measuring your brake rotors to see if they require replacing. 4mm In virtually all cases, BMW specifies 1. The reason for these specs is the the brake rotor/drum converts momentum into heat and the drum/rotor must be able to absorb and dissipate this heat. The thickness of the rotor to determine if it meets the requirement for remaining depth takes into consideration the air gap for cooling. Thanks. 4 liter 8-cylinder 28. Brake Rotor Thickness Chart - Bmw brake discs/rotors are stamped with a minimum thickness. Jun 9, 2022 · Here is a chart of the thickness that various vehicles needed: The minimum thickness on rotors is 0. 4. CONTENTS Vehicle Make . 0i, 4. 4 mm!" May 2, 2023 · New brake pads must only be installed if the brake disk thickness is greater than the minimum brake disc thickness. United States. If a mechanic were deciding if he could turn a rotor he'd have to have at least the minimum after he machined the rotor. Sep 14, 2021 · The discs only have 1. This value should be compared with the number etched on the rotor and indicated with the wording MIN TH = (Minimum Thickness), followed by the value in millimetres. In other words just measure the total thickness of the two outside surfaces. Feb 3, 2018 · The mics will easily measure the true thickness and will read the rotor away from and off the high ridge of the lip. 394 inches) and 28 mm (1. 5mm thick, can I fit a new set of pads with confidence the rotor has enough life left to last a set of pads? May 24, 2023 · Brakes on our 2017 Forester "pulse" when braking from 60mph. Do I need to replace when I do my pads? Oct 21, 2010 · If they don't meet the min thickness. There is no allowance made for any wear that might occur in use. 20k more miles might be wishful thinking, just saying. Brake Rotor minimum thickness per E53 model: Front: Rear: 3. In the instructions in TIS, on replacing pads, here's the step on measuring rotor thickness: I guess in mind it would be crazy if you were 0. ) It also includes the disc brake pad and disc brake rotor specs for BMW E53 models. That's a little over an inch. Access our Toyota Sienna 2000-06 Brake Specifications Repair Guide by creating an account or signing into your AutoZone Rewards account. Rears are 15 mm max and 13mm min. 6mm of tolerance. So depending on which sized rotors you have the minimum on the fronts will be either 28. 6mm of wear allowed. 4 mm in thickness. The stamped minimum thickness is used to determine whether the brake discs/rotors require replacement during a brake service, such as pad replacement. Page # ALFA ROMEO 17 AUDI 20 BMW 24 chevrolet 38 CHRYSLER / DODGE 44 CITROEN 46 DAEWOO 53 DAIHATSU 54 daimler 56 EUNOS 57 FERRARI 57 Fiat 58 FORD 61 FORD - tickford / FPV 65 FORD - TRUCKS 74 gmc 79 hillman 83 HOLDEN 86 HOLDEN - HSV 88 HOLDEN - commercial / 4wd 100 HONDA 102 HUMBER 108 HUMMER 108 HYUNDAI 109 Feb 1, 2018 · This minimum thickness is stamped on the edge of the rotor. Aug 30, 2018 · Minimum rotor thickness is what it measures after being turned. Mar 24, 2021 · However I know BMW has a minimum thickness they grade their rotors to determine if they need to be replaced as well. 2 inches, which is the thickness of a credit card. When you buy an approved used BMW the dealers are supposed to stick to the guidelines. 79"). The car has the original front rotors at 40,000 miles, and I want to inspect their thickness and run-out. Well. Fronts are 25mm max and 23mm min. Sep 10, 2003 · The front rotors on your X5 3. Minimum brake disc thickness (nominal dimension 348x30) Minimum brake disc thickness (brake disc 348x30) 28,4 mm Minimum brake disc thickness (nominal dimension 348x36) Minimum brake disc thickness (brake disc 348x36) 34,4 mm A statement indicating Rotor Minimum Thickness (Figure 4) is also included in this article. Sensor just indicated I need new pads, can somebody tell me the minimum thickness before needed to replace the rotors? year and miles on car and I assume they are original brakes? grace period for replacement is 4000 miles. Figure 4. Interesting think is the rear rotor thickness is still about 20mm (0. (assuming no other issues etc. MHD. It's also in the video I posted above. 4 mm (0. BMW spec is that there is 1. BMW 3 Series (2017) 30 mm Apr 27, 2018 · BRAKE ROTOR MINIMUM THICKNESS New information provided by this revision is preceded by this symbol . DISC ROTOR MINIMUM THICKNESS DEFINITION: Disc Brake Rotor Minimum Thickness (also known as Scrap Thickness) is the minimum safe working thickness of a rotor at which it must be replaced. Mar 5, 2009 · Most rotors have the minimum thickness stamped right on the rotor hat. the rears, anyways. To accurately measure against the minimum thickness use a micrometer at th Mar 8, 2024 · Brake rotor thickness chart; Passenger Cars and Light Trucks: Front rotor minimum thickness: Typically between 10 mm (0. If the rotor does not meet minimum thickness specifications, replace it. 6mm wear on the rotors between "new" and "minimum" thickness. I don't see in service history it has been changed, as lease not while I own it. Rotor set screws, I replaced. The minimum thicknesses are as follows: Front brake rotor minimum thickness: All models except M5 20. 4 mm - Vehicles of BMW Motorsport GmbH (perforated brake disc): nominal dimension minus 1. 1mm over the min thickness to install pads, unless there was more than 0. Micrometer or Vernier caliper — These precision tools are essential for measuring the rotor thickness accurately. However, as a rule, it seems that BMW allows for a total of 1. 6 mm This limit dimensions is also applicable to perforated brake discs which are fitted on BMW AG vehicles as optional accessories! - Minimum thickness of brake pads: 3 mm. ) Here in Australia, there is a general insistence in at least the few shops nearby that minimum thickness is an absolute minimum. 4mm . 6mm of rotor wear "Nominal size (diameter x thickness) mm 345x24 Minimum brake disc thickness stamped on brake disc chamber mm 22,4 Installation of new brake pads is approved only provided that the brake disc thickness exceeds the specified dimension (see table). 4mm E39 (except M5) Rear Rotors New = 20mm Minimum thickness = 18. stage 2--e30 VRSF DP, ER CP, Dinan Shockware. My front rotors measured at about 30mm and 30. If rotor does not meet minimum thickness then replace, remember to always replace brake rotors in pairs. Finally acquired most of the tools necessary (including the elusive T55. Brake discs must be replaced when they reach the nominal thickness (see table) minus 2. Oct 31, 2023 · 1. 9 and under the maintenance program they only replaced pads and sensors. If my rotor measures 20. Nov 6, 2009 · Brake Rotor Minimum Thickness Jump to Latest 17K views 11 replies 3 participants last post by pal Nov 8, 2009 Aug 1, 2019 · Which in turn means the absolute safety limit of rotor thickness is probably about 18. However, some motor vehicle inspection procedures require the measurement of brake discs/rotors. 4mm (1 minimum thickness DISC ROTOR As with all safety related components which are subject to high rates of wear, disc rotors have a maximum safe life. As the rotor reaches its minimum thickness, the braking distance Disc Brakes Australia is an Australian manufacturer, designer and global marketer of aftermarket and OE-replacement brake rotors and drums, brake pads and shoes, brake cylinders, calipers, brake hoses and fluids, sensors and other ancillary items. 4mm E39 530i/540i Front Rotors New = 30mm Minimum thickness = 28. RISK: Continued operation at or below Rotor Minimum Thickness can lead to Brake system failure. When checking brake rotor thickness, measure the rotor in about 10 different spots. Jun 9, 2023 · Factory BMW rotors have the minimum thickness stamped on the brake rotor hub flange. Remember to always replace brake rotors in pairs. I looked through the paperwork and found that they had installed new rotors in June 2020. 4mm or 22. 2013 335i Msport Black sapphire/Coral red. not before. 0 started life at 30mm thick. 4 is the BMW safe minimum. _____-----= Jan 7, 2023 · I called bmw local dealer and both parts and service advisor couldn’t help. There's still a minimum rotor thickness measure, but it's a high precision measurement, that requires calibrated tools. 4mm or 18. 8mm front and 15. . It's the total thickness of the disc portion of the rotor. The information I got for the thickness for 535i rear rotor is 20mm. Dec 14, 2019 · Posting this tonight (Saturday 12/14/19 - 2015H EST) in hopes of some information before I go out to attack again tomorrow morning. Bureau of Naval Personnel,1969 Chilton's Import Car Manual 1980-1987 , Chilton Book Company Repair & Tune-up Guide ,1986 Discover the Haven't changed rotors on the X1 (N55) yet but recently did rotors/pads on my M Coupe. He's clearly breaching the rules, and even when picked up on it, tried to lie and he has altered the correct minimum thickness of 26. As indicated in our Rotor Minimum Thickness statement the specifications are usually stamped into the rotor hub while some OEM’s stamp it on the outside edge of the rotor (Figure 5). 5 mm of rotor during the life of the pads. Vehicle’s Repair Manual — Refer to your vehicle’s manual or manufacturer’s specifications for the minimum allowable thickness. 2. If the rotor does not meet the minimum thickness, replace. 4mm down to 23. Welcome to the ultimate BMW X3 community. These pads outlast the rotors. 8mm rear (for 323/325/328 - add 3mm for 330). Are you out of free maintenance I suppose? BMW rotors, usually will have 1 1/2 the lifespan of a set of pads, so if you keep the same rotors, they will be wear at less than expec when the new pads wear 50%, risking damaging other components (like brake calipers. They are originally 28mm and BMW allow 1. Clearly BMW rotors were designed to be used below minimum thickness. BMW Garage: BMW Meets: X3M40i minimum rotor thickness. Depending on the extent of the impact of DTV on the rotors, they can be machined to iron out any high points. the formation of thermal cracks on the braking surface, due to the rise in temperature and the reduction in the resistance thickness; deformation of the brake disc, resulting in vibrations and noise; increased pedal travel, caused by reduction of thickness of the braking surface. 4 liter 8-cylinder 10. Looking for the factory specs for these measurements. nsjld ukyy qcdca pzenn fareqe jsa dczf lzxuz isnx nqtbcjq
© Copyright 2025 Williams Funeral Home Ltd.