This listing is for the pictured Air Flow Meter removed from a 2021 AUDI A4 1968 Unknown with an engine code of DTNA RDE2-A MHEV and miles. Please make sure the part number is correct for your vehicle before buying. The Air Flow Meter were tested upon removal and comes with a 90 day guarantee. If you are unsure about fitment to your vehicle please message us through ebay.