Vented Cooling Brake Disc Auto BD-08ODK for Audi

Technical specifications

Compatibility & fitment guide

How to identify the correct unit: locate the reference number stamped on your original component or in the vehicle parts catalogue, then cross-check it against the number below before ordering. Trim and market variants exist for many applications, so the short check is worth the minute before checkout.

How to identify & confirm fitment in 4 steps

1. Locate the OE / reference number on your old part or in the vehicle parts catalogue.
2. Match it to BD-08ODK shown on this page.
3. Send your VIN and engine code plate so our team runs an exact-fit check.
4. Receive fitment confirmation before we dispatch your order.

Cross-reference coverage for audi brake disc and brake disc fitment is listed above; confirm your VIN before ordering.

What this part is

Stocked for Audi and referenced by BD-08ODK.

Feature highlights

Buyers searching bus brake disc look for the strengths listed here: direct fit, verified reference and wholesale packing.

Where it fits

Suitable for Audi. Brake Disc is stocked for these markets and model families so buyers can match demand without re-checking every listing.

Technical notes

Deep dive. A brake disc rarely fails without warning. The usual signals are a pulsating pedal under light braking, squealing or grinding during stops, visible grooves, scoring or fine cracks on the friction face, and stopping distances that lengthen gradually. The disc itself is the friction partner of the pad and also the vehicle's main heat sink: most of the braking energy turns into heat at its surface. On a vented rotor, internal vanes pump air through the core as the wheel rotates, so the disc keeps its temperature, and therefore its friction behavior, stable during repeated stops and long downhill stretches.

Deep dive. Installation on an Audi wheel end is a straightforward axle-level job, but a few points decide the outcome. Replace discs in pairs so both sides share the same thickness and surface condition, and fit new pads at the same time. Clean the hub face thoroughly; even a thin rust film tilts the disc and shows up later as pedal pulsation. Check lateral runout with a dial indicator against the model's limit, torque the wheel bolts in stages to specification, and bed the new surfaces in with a series of moderate stops from medium speed, avoiding prolonged dragging in the first hundred miles or so.

Deep dive. Between services, thickness is the number that matters. Measure the vented rotor with a micrometer at several points around the face and compare the smallest reading with the minimum thickness stamped or cast on the disc; replace at or above that limit, not after it. Audi recommends checking the braking system at every tire change, which fits the wear rhythm of most drivers. Also look at the edge step, the vent openings for clogged debris, and any rust that has crept from the hat onto the friction band. Surface rust after rain is normal; flaking, deep pitting or scoring is not.

Application context. Buyers choosing an Audi replacement disc normally compare four things. First, construction: vented discs like this one suit heavier engines and higher-speed use, while solid rotors remain correct for lighter rear axles. Second, finish: plain, cross-drilled or slotted faces trade noise, wet performance and crack resistance differently. Third, protection: coated hats and edges slow cosmetic rust in winter road salt. Fourth, traceability: a credible listing states the OE cross number, diameter, thickness and minimum thickness instead of a vague model list. A reference such as BD-08ODK should be matched to the car through the OE number on the original disc.

Technical background. For European passenger-car discs the relevant quality language is material and process rather than a single emblem. Audi describes its own discs as perlitic cast iron with flow-optimized air ducts and resistance to thermal deformation, and its literature quotes temperature resistance up to about 1200 degrees C for hard braking. Aftermarket suppliers of Audi-compatible rotors typically work to the same gray cast iron families, HT250 in the Chinese standard and G3000 in the American equivalent, and manufacture under ISO or IATF 16949 quality systems. Approval markings, where present, are stamped on the hat; buyers who need documented conformity should read those marks before fitting.

Application context. This reference sits in the retail and independent-workshop corner of the market. The typical buyer drives an A4, A5, A6 or Q5, has been quoted a dealer price for discs, and wants the same vented geometry without the branded packaging. Independent garages serving European marques buy it for exactly that reason: a known dimension set, a coating that survives winter roads, and a part that installs with standard tools. Fleet-style buyers are rare here; the volume buyer is the owner-operator who services one or two cars, values pedal feel and quiet running, and confirms fitment by the OE number before ordering.

Technical background. A vented Audi rotor rarely reaches its wear limit alone. Budget for new pads in the same service, because pads bedded to a scored friction face never transfer cleanly to fresh iron and will glaze or squeal within days. On many Audi platforms removing the caliper destroys the pad wear sensor, so order one per axle. While the wheel is off, inspect caliper slide pin boots and bleed screws; a seized pin produces tapered pad wear that ruins a new disc quickly. Flush the brake fluid too, since moisture-laden fluid boils earlier under the repeated braking Audis routinely see.

Field note. Vented passenger-car discs usually ship one per carton with the friction faces protected by foam rings or edge cards. Raw grey iron will flash-rust within days in humid air, so keep the box sealed until the rotor goes on the hub. Store discs flat on shelving rather than standing on edge, away from concrete floors that wick moisture. A light rust-inhibiting film on the hat and vanes is normal factory protection, but never let oil touch the friction faces. If a light bloom appears during storage, a wipe with isopropyl alcohol and a scuff pad restores the surface before fitting.

Application context. Two steps separate a smooth job from a comeback: cleaning the hub mating face and measuring runout. Use a wire brush or Scotch-Brite disc on the hub face and wheel studs, then mount the disc hand-tight on a couple of lug nuts and sweep it with a dial indicator before final assembly. You will want a calibrated torque wrench for the caliper bracket bolts, a C-clamp or piston compressor for the caliper, and a hex or star bit set for guide pins. New discs are often stamped with a minimum thickness value on the hat; log it for future inspections.

Deep dive. Winter is the hardest season on a vented rotor. Road brine packs into the internal vanes and corrodes the vane edges from the inside, so flush the wheels with plain water after salted driving. Cold mornings also expose pad compound choice: a soft summer pad can harden below freezing and chew the disc surface before it warms up. In summer, loaded Autobahn or alpine descents push vented discs toward fade, and repeated hard stops with a worn disc risk heat checking. Adjust inspection intervals to the season rather than mileage alone.

Application context. Workshops stocking this part in quantity should buy a single production batch per shelf location and keep the batch code tied to invoices. Each box should carry a legible batch or date code plus the minimum thickness marking, and the supplier should provide a dimensional inspection report covering diameter, thickness, parallelism and balance for that batch – not a generic certificate. For European use, confirm the disc carries an ECE R90 approval marking on the casting. Ask for a sample cut from the delivered pallet before signing off bulk quantities, and photograph the castings against the packing list.

Application context. Audi has always matched disc diameter, thickness and even iron composition to engine weight and output, so the same model badge can hide two or three rotor sizes depending on trim and brake package. Top-line variants run vented and perforated rings while mid trims use plain vented rotors that look similar behind the wheel. Match by the casting number and factory reference on the removed disc, not by model year alone, and compare total height and hat offset as well as outer diameter. Wheel size is the final check: a larger rotor will not clear a small-diameter rim.

Workshop note. Audi's brake documentation states that roughly 90 percent of the heat produced during braking is absorbed by the brake disc and then dissipated to the surrounding air, which is why the internal venting path matters for fade resistance.

Application note. Reference geometry for Audi A4/A5/A6/Q5 front vented discs of the B8 and B9 generations measures 318-320 mm in diameter with about 30 mm new thickness and 28 mm minimum, a 5-hole 112 mm bolt circle and roughly 68 mm centering diameter, per published aftermarket catalogs.

Workshop note. Indicators for disc replacement documented by Audi include grooves, scoring or cracks on the friction face, a vibrating brake pedal, and continuous grating or squealing noises when braking.

Supply note. BD-08ODK is an aftermarket compatible replacement reference for Audi applications with internally vented (cooled) brake discs; fitment is confirmed by matching the vehicle's OE disc number and measured dimensions, not by the reference alone.

Workshop note. Audi vented discs of this class use perlitic cast iron with flow-optimized internal air ducts and an offset mounting face, a construction described in Audi's own brake component literature.

The engineering notes above compile verified reference, material and application data for aftermarket brake disc and compatible brake disc.

Quality & authority

Inspection runs on an AQL sampling plan: incoming material, in-process checkpoints and a final release check are recorded on the batch sheet.

Warranty & support

12 Months limited warranty against manufacturing defects. Coverage applies to correctly installed units; keep the batch date code so any claim is processed against its inspection record. Disc thickness, minimum-thickness marking and runout questions are answered by our team before dispatch.

Why choose Vidishi Auto

Brake Disc — Brake Disc. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request. Discs are supplied for car, light-truck and commercial-vehicle brake programs in solid, vented, drilled and slotted patterns.

Packing & delivery

We ship worldwide to distributors and garages from China, Dongguan. Each Brake Disc is packed in a single-unit export carton. Discs ship stacked with separator sheets in export cartons to protect the friction surface. Tracked air or sea freight is arranged per order volume.

Bulk quantities of wholesale brake disc, brake disc supplier and brake disc price ship in mixed containers from China, Dongguan.

Mixed-container programs for brake disc bulk order are arranged per order volume.

Cross-reference & catalog

Catalog numbering for this Brake Disc: the primary reference is BD-08ODK. When a supplier catalog lists superseded or regional formats, match on the numeric core of the code rather than the prefix, then confirm the physical fit.

Catalog cross-references for brake disc catalog and brake disc guide resolve to BD-08ODK.

Frequently asked questions

Further brake disc vs rotor questions are answered by the trade desk within one business day.

Compliance disclaimer

Vidishi Auto is an independent supplier. This is an aftermarket compatible replacement, not a genuine OEM part. Brand names are trademarks of their respective owners and are used only to identify fitment.

Machining & runout checks

Disc condition at fitment decides braking performance; the checks below are confirmed with every order.

• Pre-dispatch checks: Metal construction is verified against the reference sample before packing; fitment covers Audi applications.

Installation and service notes for brake disc replacement, real carbon brake disc and sram centerline 160mm rotor center lock brake disc rotor are confirmed by our technical team before dispatch.

• Friction-face parallelism and runout are checked against the reference sample before packing.
• Minimum-thickness marking and discard-limit data are confirmed with the quotation on request.

Workshop teams comparing brake disc rotors, brake disc cross reference and auto receive the pre-dispatch checklist with the quotation.

• Hub bore, bolt pattern and overall height are matched to your old disc before dispatch.

Installation and service notes for 430mm brake disc and t-drive brake rotor are confirmed by our technical team before dispatch.

Bed-in & service notes

Disc service life depends on the bed-in procedure; the notes below are supplied with every order.

• Configuration checks: the supplied configuration is confirmed against your order before dispatch.

Configuration and service notes for oem brake disc, brake discs and brake disc resurfacing are confirmed by our technical team before dispatch.

• Bed-in guidance is supplied with the quotation on request.
• Discard-limit thickness data is confirmed against your workshop specification.

Workshop teams comparing brake disc pads bike, mk5 and audi a3 8l disc receive the configuration checklist with the quotation.

• Pair replacement is recommended where the listing supplies a single disc.

Configuration and service notes for brake disc for mercedes-benz are confirmed by our technical team before dispatch.

Surface pattern options

Solid, vented, drilled and slotted patterns are stocked by reference; the options below are confirmed before dispatch.

• Reference checks: the OE / reference number is matched against your old part before packing; supply covers Audi programs.
• Surface pattern and vent design follow the published listing.

Application data for 2013 audi a5 original brake discs size front and rear, brake disc inspection and how to confirm brake disc fitment is confirmed against your specification before dispatch.

• Coating and anti-corrosion treatment scope is confirmed with the quotation.
• Friction faces are oil-film protected before export packing.

Engineering checks behind the e46, bmw e46 rotor and brake disk supply are completed before packing.