Received the letter from Audi UK for my 2.0 Allroad TDI (170bhp) requiring the emission software update. I know this topic is rumbling on, but as this relatively new-to-me A4 isn't chipped I opted for the work to be carried out. The dealer also advised the air conditioning required a software update too, so they would complete both at the same time. My local Audi dealer has recently relocated to a new state of the art site on the edge of town, and given they must be getting financial support to re-engage with customers I couldn't fault their service. They've gone all boutique hotel with a drive-in and an express check out facility. Its a bit of a gimmick, but I can't fault their communication, with letters, texts and follow-up emails. I honestly can't tell any difference since the work has been completed and I've driven it for the last couple of days and experimented with Audi Drive Select modes. The dealer also completed a full health check on the vehicle and checked tyre depths, so all very comprehensive. On returning to the car after the trip to the dealer they'd left a car care kit on the passenger seat. Nice touch, even if it is VAG group's way of saying sorry.