Hi everyone first time I have received this code, any help would be much appreciated on a possible solution. 
Would a recent start stop disable adaptation via Vcds be the cause?  I did have the flashing glow plug light but that went after a restart of the engine, then ran the VCDS diagnostic just now.  Thanks in advance for any advice. 

 

 

Thanks so appears I need a new turbo boost actuator? Anyone agree? If so would anyone have a part number and where it is located in the engine bay? It’s a 2013 1.6 tdi CLHA. Thanks again

The actuator has probably been gummed up by soot.  You can try working the actuator by hand to see if that frees it, but my suggestion is that you need a cetane improver to clean out the EGR and keep the soot from building up.  https://www.hydra-int.com/DPB000K.html is what I used when I had a TDI.  You also should be more firm and give the car a good long run/blast out....don't be afraid of giving the car a good long (60 miles +), fast (keep it in a lower gear at 70mph)  and progressive run (don't be afraid to use ALL the accelerator - work the actuator).

3 minutes ago, varaderoguy said:

The actuator has probably been gummed up by soot.  You can try working the actuator by hand to see if that frees it, but my suggestion is that you need a cetane improver to clean out the EGR and keep the soot from building up.  https://www.hydra-int.com/DPB000K.html is what I used when I had a TDI.  You also should be more firm and give the car a good long run/blast out....don't be afraid of giving the car a good long (60 miles +), fast (keep it in a lower gear at 70mph)  and progressive run (don't be afraid to use ALL the accelerator - work the actuator).

Thanks for the reply, I cleared the code and it hasn’t appeared again yet, but will try some additive and a good motorway run.

On 04/11/2024 at 12:45, varaderoguy said:

The actuator has probably been gummed up by soot.  You can try working the actuator by hand to see if that frees it, but my suggestion is that you need a cetane improver to clean out the EGR and keep the soot from building up.  https://www.hydra-int.com/DPB000K.html is what I used when I had a TDI.  You also should be more firm and give the car a good long run/blast out....don't be afraid of giving the car a good long (60 miles +), fast (keep it in a lower gear at 70mph)  and progressive run (don't be afraid to use ALL the accelerator - work the actuator).

Hi again, to manually work the actuator is it at the very bottom of the actuator and just push or pull the rod. Or can it be activated via Vcds a few times? Thanks

Push and pull the rod gently (with the car switched off).  If its completely stuck, then sadly its a new turbo actuator that is needed or you need to take the fins apart and clean them manually (not easy).

Can the rod be activated with a vacuum tester? Thanks