Engine Air Filter – 8B3 133 844 B
Engine Air Filter for Audi A5 (8B, 2025+) — UNCONFIRMED, OE number 8B3 133 844 B. Main group 133 sub-group 844 identifies this as an engine intake filter. Revision index B. Replace at the interval in your service schedule — a restricted intake filter costs measurable power and fuel economy.
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Technical specifications
| Part Number | 8B3 133 844 B |
| SKU | AUD-8B3133844B |
| Brand | |
| Category | Air Filters |
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Customer reviews
Verified feedback from Audi owners and independent workshops.
4.7
3 reviews
Martin Ellery
March 31, 2026
No leaks, no fuss
Cross-referenced the OE number against my 2017 A8 D4 before ordering. I pre-oiled the seal before fitting and there has not been a drop since. The media feels dense and the end caps are properly bonded rather than glued on thin. Result is shifts are smoother now the transmission has clean fluid and a fresh filter. Good value against the dealer price.
Elena Kaur
October 13, 2025
Correct fit, sealed properly
Ordered this for my S3 8V after the original gave up at 49k. I changed it with the oil at the same service interval. Dimensions matched the outgoing filter to the millimetre. Result is the musty smell from the vents has completely gone. Will be back for the other side.
Thomas Brandt
June 19, 2025
Exactly what the service needed
Second one of these I have bought, this time for the S3 8V. Dimensions matched the outgoing filter to the millimetre. I changed it with the oil at the same service interval. Result is no leaks at all after several hundred miles.