Mishimoto direct-fit baffled oil catch can for the 2018-2021 Audi B9 S4 and S5 with the 3.0T TFSI. It installs in line with the PCV system right after the factory separator, where a 2-port compact can with a 50-micron bronze filter and internal baffle captures the oil and fuel vapors that slip past the OEM AOS before they reach the intake valves. The kit includes direct-fit hoses, two Mishimoto one-way check valves to prevent the can from pressurizing, and a petcock drain for easy servicing. The billet 6061 aluminum can is sealed with Viton O-rings, and the kit is backed by the Mishimoto Lifetime Warranty.
Specifications
| Type | 2-port compact baffled oil catch can (PCV side) |
| Material | Billet 6061 aluminum (Viton O-rings) |
| Separation | Internal baffle, 50-micron bronze filter |
| Includes | Direct-fit hoses, two check valves, petcock drain, hardware |
| Installation | Under 30 minutes |
| Part Number | MMBCC-S4-18PBE |
| Warranty | Mishimoto Lifetime Warranty |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2021 | Audi | S4 | Premium |
| 2018-2021 | Audi | S4 | Premium Plus |
| 2018-2021 | Audi | S4 | Prestige |
| 2019-2021 | Audi | S5 | Premium |
| 2018-2021 | Audi | S5 | Premium Plus |
| 2018-2021 | Audi | S5 | Prestige |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
