2013 BMW X3 xDrive28i Front Rotor Size and Wear Limit
2013 BMW X3 xDrive28i Front Rotor Size and Wear Limit with application chart, generation boundaries, verification steps and official manufacturer lookup.
The standard covered 2013 BMW X3 xDrive28i F25 front brake uses a 328 x 28 mm ventilated rotor. BMW's service information gives 26.4 mm as the minimum thickness for this row.
The standard covered 2013 BMW X3 xDrive28i F25 front brake uses a 328 x 28 mm ventilated rotor. BMW's service information gives 26.4 mm as the minimum thickness for this row.
This exact figure applies only after the VIN/EPC confirms the 328-mm standard brake. Engine, market, payload option and M Sport/M Performance brake equipment can select a different rotor even within the F25 chassis.
Match diameter, nominal thickness, minimum thickness, hat geometry and part number. BMW says standard non-perforated discs are replaced after 2.4 mm total thickness loss; perforated and M discs use a different 1.6-mm rule. Measure at several points away from the outer wear lip with an appropriate micrometer.
Interactive 2013 X3 xDrive28i F25 specification guide
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Orientation aid only. Match the VIN, engine, trim and manufacturer document before use.
Bmw X3 Brake Rotor Size Chart
| APPLICATION / ITEM | SPECIFICATION | NOTES |
|---|---|---|
| Front rotor diameter | 328 mm | 12.91 in |
| Nominal thickness | 28.0 mm | Ventilated front disc |
| Minimum thickness | 26.4 mm | Stamped MIN TH controls |
| Standard-disc replacement rule | Nominal minus 2.4 mm | Not for perforated/M discs |
| Final identification | VIN + BMW EPC | Equipment can change rotor |
Match diameter, nominal thickness, minimum thickness, hat geometry and part number. BMW says standard non-perforated discs are replaced after 2.4 mm total thickness loss; perforated and M discs use a different 1.6-mm rule. Measure at several points away from the outer wear lip with an appropriate micrometer.
Why VIN identification matters on an F25
BMW notes that engine, transmission, national version and load-related options can change the brake disc. A 328-mm listing on a parts site is not enough if the caliper or option package on the vehicle differs.
Use the VIN in BMW's parts system and compare the old disc's dimensions and part number before ordering. Diameter alone cannot distinguish two rotors with different thickness, offset or ventilation geometry.
Measure thickness away from the wear lip
Clean the disc and measure at several evenly spaced points in the swept area with a brake micrometer. Avoid the unworn outer ridge, which can make a worn disc appear thicker than it is.
Replace the covered standard disc at or below 26.4 mm and inspect both sides for scoring, heat checks and thickness variation. BMW applies a different total-wear rule to perforated and M discs, so do not borrow this limit for those systems.
Application boundaries for 2013 X3 xDrive28i F25
This exact figure applies only after the VIN/EPC confirms the 328-mm standard brake. Engine, market, payload option and M Sport/M Performance brake equipment can select a different rotor even within the F25 chassis.
Match diameter, nominal thickness, minimum thickness, hat geometry and part number. BMW says standard non-perforated discs are replaced after 2.4 mm total thickness loss; perforated and M discs use a different 1.6-mm rule. Measure at several points away from the outer wear lip with an appropriate micrometer.
BMW 2013 X3 xDrive28i F25 specifications can change by model year, engine, platform, wheel, and installed component. Confirm the VIN or engine identity, part numbers, fastener condition, and the current manufacturer instructions before service.
Procedures used with this specification
These steps are the same for every vehicle in this family, so they are documented once rather than repeated on each page. The values above remain specific to this BMW 2013 X3 xDrive28i F25.
2013 BMW X3 xDrive28i Front Rotor Size and Wear Limit FAQs
What is the 2013 BMW X3 xDrive28i front rotor size?+
The covered standard F25 brake uses a 328 x 28 mm ventilated front rotor.
What is the minimum thickness for that 328-mm disc?+
The cited service row lists 26.4 mm; the stamped MIN TH and VIN-confirmed specification control.
Do all F25 X3 models use a 328-mm front rotor?+
No. Engine, market and brake-option equipment can select another disc.
Can rotor thickness be measured across the outer ridge?+
No. Measure the swept surface at multiple points away from the unworn lip.
Technical sources
TorqueSheet favors engine- and component-specific manufacturer instructions over unsourced universal values.
1BMW X3 F25 front-brake service specificationsF25 factory-service transcription specifying a 328 x 28 mm front disc and a 26.4-mm wear limit, while requiring VIN/EPC assignment because equipment can change the brake package.↗2BMW Driver's GuideOfficial BMW VIN-based owner information.↗