Hi Guys,

I am new on here. I have a 2007 Audi A4 2.0 TDI with just over 100k miles on it. On long journeys that take more than 3 hours, the car goes into Limp mode, the MIL turns on and the Glo Plug light illuminates. If i let the car sit for a while, then it comes out of limp mode and everything works fine. Strange thing is that it never happens on journeys under 2hrs long for some strange reason. I've connected up VAG-COM and read the codes and 4 error codes exist on the Engine module. the codes are:


  • P0234 Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
  • P0113 Intake Air Temp. Sensor (G42): Signal too High
  • P0238 Manifold Pressure / Boost Sensor (G31): Signal too High
  • P0243 Solenoid Valve for Boost Pressure Control (N75): Malfunction




Can this be 4 seperate issues or could it be one issue causing 4 different codes? Any idea what to look at?

Any advice would be greatly appreciated.

Thanks