The updated generation was designed to meet stricter emissions standards and includes:
Cast iron cylinder sleeves (1mm thin-wall press-fit)
Combined fuel injection (both port and direct injection)
Electromagnetic clutched supercharger that disengages during idle and cruising
Simos 16 ECU
Revised timing chain design and graphite-coated pistons
Found in:
2014-2016 B8.5 S4, S5 (Europe/Rest of World only)
2016-2018 C7.5 A6, A7
2016-2018 D4 A8
2016-2020 Q7
Engine Codes: CREC, CRED, CREG, CREH, CTDA, CTDB
How to Identify Your Engine Generation
The most reliable way to determine your engine generation is to check your engine code, which can be found on a sticker in your engine bay, in your owner's manual, or on your vehicle registration documents. Match your engine code to the lists above to identify whether you have Gen 1 or Gen 2.
Still not sure which generation you have? Use the vehicle filter above to select your Year, Make, Model, and Engine. We'll automatically show you only the compatible parts for your specific vehicle configuration.
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