DENSO
is known for creating the QR Code, a two-dimensional bar-coding system which has
become prevalent in much of the developed world.
Some Audi A4, Audi A4 Allroad, Audi A5, Audi A6 and Audi A7 are built with the same air conditioning compressor. The Original
Equipment Manufacturer Numbers (OEM numbers) are Audi 4F0260805AB, 4F0260805AF, 4F0260805H, 4F0260805R, 4G0260805A, 8E0260805BC, 8K0260805G, 8K0260805P.
The air-conditioning system of these vehicles was assembled
with a Denso 6SEU14C compressor. Manufacturer numbers: Denso 447190-3400, 447190-3420, 447190-6420, 447190-6422, 447190-6423.
These
ac units seem to be interchangeable.