Engine Air Filter – 4N0 129 620 B
Engine Air Filter for Audi A8 (D5), OE number 4N0 129 620 B. Main group 129 sub-group 620 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 | 4N0 129 620 B |
| SKU | AUD-4N0129620B |
| Brand | |
| Category | Air Filters |
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Customer reviews
Verified feedback from Audi owners and independent workshops.
4.1
7 reviews
Freya Bergmann
April 29, 2026
Exactly what the service needed
Bought for a 2021 Q7 4M. The media feels dense and the end caps are properly bonded rather than glued on thin. It dropped straight into the housing and the cap torqued to spec first go. Result is the musty smell from the vents has completely gone.
Freya Novak
December 20, 2025
Genuine quality for less
Fitted to my 2013 A4 B8.5. I changed it with the oil at the same service interval. The rubber seal is supple and sat in its groove without coaxing. Result is throttle response feels crisper than it did on the clogged original. Exactly what I needed.
Priya Weiss
October 7, 2025
Right filter every time
My A4 B7 needed this doing at 154k miles. I changed it with the oil at the same service interval. The media feels dense and the end caps are properly bonded rather than glued on thin. Result is throttle response feels crisper than it did on the clogged original. Delivery was quick too.
Marcus Vogel
April 25, 2025
Good pleat count
Replacement for my 2020 A6 C8 2.0 TDI. It dropped straight into the housing and the cap torqued to spec first go. The pleat count is visibly higher than the supermarket filter I had been using. Result is no leaks at all after several hundred miles.
Sven Petrov
April 16, 2025
No leaks, no fuss
Fitted to my 2017 A7 4G. 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. Good value against the dealer price.
Bastian Kowalski
April 14, 2025
Wrong housing diameter
Replacement for my 2016 Q3 8U 1.4 TFSI. The outer diameter was a couple of millimetres off and it would not sit square in the housing. Would not order the same one again.
Laura Adeyemi
March 12, 2025
Correct fit, sealed properly
Fitted to my 2013 A7 4G. The old one practically fell apart coming out; this went in cleanly. The rubber seal is supple and sat in its groove without coaxing. Result is oil pressure comes up as quickly on a cold start as it always has. No complaints at all.