Hi Guys, I'm new to the forum and new to Audi also. Most of my car history has been 4 cylinder VWs and 6 cylinder BMWs. I'm now onto a 6 cyl Audi. It's a 2014 so B8.5 3.0tdi Black edition plus, 7 speed. Taking ownership of this car was almost a forced hand, my trusty 08 Passat that I do 450 miles a week in decided to put a rod through the block on a Wednesday so the hunt was on for the nicest auto 3l diesel estate (any brand) within budget by the Friday and this is what I found. It's a 60k mile car bought privately with a full Audi history and box service at 40k miles. Glacier white with some nice options such as ACC but it's also not a massive spec'd car. I've been looking online to find out as much as possible but to be honest there isn't much about. Can anyone on here share some info about my engine and gearbox please? As simple or as complex as you like. It's a CDUC engine and the transmission code from the Audi print out I have is PWU which I think is 0b5(?), is this a dry dual clutch? I would like to map the car, mainly for economy and a bit more overtaking on my 450 motorway mile a week commute. However, I've been reading about the 550nm gearbox limit. How true is this? I won't be driving the car hard, I would just like some more torque for quicker overtaking but at the same time I need reliability for the milage I do. Thanks in advance for any info.