A3 forum Noob

Hello mate, yes the car has full service history. it was driving fine for a while and these all came out of no where just went into limp mode and shows these codes. before this engine was running smooth no issues it still runs smooth in limp mode no knocking or juddering or anything.

Hello guys, hope you are all well could do with some advise on how to tackle fixing this limp mode issue. Hoping to sort this myself as i cant afford to take it to a garage at the moment but cant seem to find the issue of what needs replacing. i have an Audi A3 2.0tdi 100k miles 2008 103kw thats stuck in limp mode when scanned the below codes come up. i have tried to clear the codes but the will not clear and soon as i turn the car on the glow plug and EML are both lit up. "P2425 - Exaust gas recirculation cooling valve control circuit open" "P0047 - Turbocharger / Supercharger boost control solenoid 'A': circuit/Open" P0045 - Turbocharger / Supercharger boost control solenoid 'A': circuit/Open" "P2426 - Exaust gas recirculation cooling valve control circuit low" "P261A - Coolant Pump 'B' control circuit / open I have tried to check the EGR vacuum pump solenoid it seems to be in good condition in relation to code P2425 not sure how else to check it im going to try and swap it from a friends car and see if this changes anything. I'm going to check P261A - Coolant Pump and see if this is a separate issue or if it is causing all the above issues. If anyone could help with this issue it would be much appreciated and if anyone knows if its a few things that need fixing or is it one thing that's causing all these faults.