This engine in the Audi A6 makes 250 kW (335 bhp) @ 5,000 rpm and 500 N-m (369 lb-ft) @ 1,370 rpm. Common Audi 3.0 V6 TFSI Engine Problems. Common Audi 3.0 V6 engine problems include: Timing Cover Oil Leaks; Coolant Leaks; Crank Vent Valve Failure; Crank Damper Pulley Failure; Thermostat Failures; Water Pump Failures; Spark Plug & Coil Failures 40 TDI S Line 4dr S Tronic. £18,639. Details. Audi A6 3.0 TDI - Inlet manifold problem. Hi, I have an 08 Audi A6 3.0 TDI quattro with 75k Miles. Last Novemeber I got an engine managment warning light on the vehicle and £750 later (£550 for the part and £200 for the fitting) a new LHS inlet manifold. I wasn't too thrilled with that, but Jun 17, 2016. #1. Hi all, I am the happy owner of an Audi A4 B7 3.0 TDI 204 (BKN) of 2005. It is a pleasure to drive it with a simple remap. But I want more power and I am limited with fuel pressure. With original map, fuel pressure mounts at 1600 bar, all is OK. And with my remap, I can't touch 1600 bar like original map (I ask 1600 bar a Anonymous A., TX (2012 Audi A6 3.0T 3.0-L V6 supercharged) Other minor engine problem. "At 103000 miles, there was a fuel leak which was discovered as the high pressure fuel pump. Also, the car 1. Location. Birmingham. Mar 27, 2019. #1. Hi All, I'm looking to purchase a used Audi A7 3.0 TDI S Line Sportback S Tronic Quattro - it's 2012 with 136,000 on the clock. It says FSH with gearbox/oil change done at 84k for around £11k. Don't really want to spend more than this on a vehicle and i'm staying away from BMW's now. My Audi A6 C6 (3.0 tdi) intermittently doesn't crank when I go to start the engine. I turn the key to the start position and nothing happens. There are no clicks or other noises that I can hear. It'll then start if I try a second or third time. It'll often start with no problems. The battery is fully charged. Used Ford C-Max-Energi in Palatka, FL. Used Mercedes-Benz Slk-Class in Decatur, AL. Used Cadillac Ct4-V-Blackwing in Sulphur, LA. View all 45 consumer vehicle reviews for the Used 2015 Audi A6 on I too am located in Denver and drive a 2015 Q7 TDI. Previously, I owned a 2014 A6 TDI (pre emissions modification) and absolutely loved the power and efficiency. The Q7 TDI I now drive was purchased after the fix as a new leftover, therefore I have no experience driving the Q7 TDI pre-fix. Lastly, the 2.0 TDI put out anywhere from 118-187hp and 214-295 lb-ft of torque. Overall, the Audi A4 B8 is a highly reliable vehicle. However, there are a number of common problems both engine and non-engine related in these vehicles. Audi A4 B8 Common Problems. Water Pump Failure; Leaking Fuel Injectors / Failed Injectors; Excessive Oil Although the 2016 Audi A6 has the most overall complaints, we rate the 2000 model year as worse because of other possible factors such as higher repair cost or more problems at lower mileage. The pemsq.