Paymon

2019 Audi Q5 2.0 gen 3
Having issue with my Turbo….possibly just the waste-gate actuator.
Error code P334A(check engine light on)
Car drives fine with the exception of the lack of power due to turbo.
Clear the codes turbo works fine for a short period sometimes a day sometimes 5 minutes .
Then error code pops back up and check engine light returns.
88,000kms (just out of warranty)
Audi parts only will sell the entire turbo which costs over $3500.
Took the part number off actuator directly called back it’s around $600 they do have it available as a stand alone part but not for my VIN.
Is there something special about this model or just Audi playing games don’t want to order part and later find out that the entire turbo needs to be changed even though the problem is only the actuator.

SMac770

The wastegate actuator is a common failure point on the B9 2.0T engines.

https://www.golfmk7.com/forums/index...-p334a.393836/
https://static.nhtsa.gov/odi/tsbs/20...69655-2280.pdf
The above may or may not be relevant to the situation on the B9. They are all Gen3 engines with electric wastegate servos, but the B9 uses the updated Gen3.

The Gen3 evo (248hp) servo is 06L 145 614 B: https://parts.audiusa.com/p/Audi_201...6L145614B.html
The Gen3 b-cycle (188hp) servo is 06L 145 612 M.
It doesn't show the Q5 in the list, the the parts catalog shows it "only as part of the turbo" in the Q5 section. But since it's the exact same thing as the other vehicles, ....

"Took the part number off actuator directly", and it was?

P334A Charge pressure actuator Electrical error
Turbocharger (TC) Boost Control Actuator short circuit
• Bypass valve driver current > 9.3 – 15.0 A

If you google search for CYMC generic scan tool you should find the workshop manual for the engine, which has some steps for testing the V465.

Paymon

I part number off the actuator is 06L 145 614 B.

I had no luck downloading the service manual for this engine.To confirm whether the voltage is in spec.