Complete kit for retrofitting the original front seat heating for Audi A6 4A The seat heating levels can be easily selected via the MMI Selectable options: Normal seat (Q1A), version 1: N4M, N5W Normal seat (Q1A), version 2: N1S, N2M Sports seat (Q1D), version 3: N5F Sports seat (Q1D), version 4: N1B, N1T, N2R, N5D, N5J, N5K, N7K, N7U, N7V S-Line sports seat (Q4Q), version 5: all seat covers Comfort seat (Q2J), version 5: all seat covers Scope of delivery: Seat heating mats Wiring harness Coding dongle Note: The BCM1 must be a "highline" version. If this is not the case, you must replace it first. The seat heating mats must be inserted into the seat by a saddler. Only suitable for PR No.: 4D0 as well as 5C0/5C2