1) 2.0tdi engines in the early 2005 B7 A4 models ( and the A6 models )should just be avoided at all costs unless the balance shaft conversion has been completed. Even then the 2006 models have had injector issues and oil pump failures. Step 7 – Install new thermostat. Installation is the reverse of removal. Install the new thermostat, then tighten the two bolts holding it in place. Install the radiator hose on top of it, then slide the clamp on it. Install the three bolts holding the coolant lines. Step 2 – Check for loose wiring. A cable may just need to be tightened. If you experience issues with the speakers sometimes working, or even the display that semi-functions, then check the connections. A wire connector clip could have broken off, or loosened, so grab your radio keys and pull out the head unit. Step 2 – Remove all connections to fuel rail. To access the fuel rail, we have to remove all the parts connected to it. Looking at Figure 2, remove the electrical connection on the top left, then remove the electrical harness from the N80 valve, which is right next to the other connection. Remove all the hoses circled in green (you will have OB5 Dl 501 ATF oil emulsification and consequental problems on Audi A6 C7 3.0 tdi. Audi A6 C7 Avant Quattro 2012. VIN code WAUZZZ4G6CN076688.125,500 Km OB5 (DL501) Transmission Transmission Label OB5-927-156.clb. Software coding 000001 Module. Step 2 – Remove coolant temperature sensor. The temperature sensor is in a tight area, behind the engine, closer to the passenger side. It has an electrical connection connected to it, so remove that by inserting your flat head screwdriver in the small opening to push on the tab, then pull it away from the sensor. Emissions revision gets them down to £245 on road tax. No real difference in performance, later 240 PS lump seems slightly more refind (although the 3.0 was excellent to start with). haven't done Common causes of a failed connection or thrown rod in an Audi 3.0 TDI engine. Hydro-locked engine, i.e., an engine filled with fluids rather than air. Thus, the connecting rods will bend if you start your vehicle under this condition. .

audi a6 3.0 tdi quattro 2005 problems