P0245 on Audi
Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Low
P0245 on Audi vehicles indicates turbocharger/supercharger wastegate solenoid "a" circuit low. Au7o has documented this code across 4 Audi models — most commonly on A7, S5, S8. This code sets when the engine control module sees an abnormally low voltage (a short to ground or open) on the control circuit for turbocharger/supercharger wastegate solenoid "A." The wastegate solenoid regulates boost pressure by controlling the wastegate that bleeds off exhaust pressure. When the circuit reads low, the computer can no longer trust its control of boost, which can affect power and emissions. Typical repair costs on Audi range from $300 to $5,000, depending on the specific model and root cause.
Common Causes of P0245
- •Faulty wastegate solenoid (internally shorted)
- •Wiring shorted to ground in the solenoid circuit
- •Corroded or loose solenoid connector
- •Open or damaged control wiring
- •Failed PCM/ECM driver circuit (less common)
- •Vacuum/boost line issues affecting the solenoid
P0245 on Audi by Model
Audi A7(1 issue)
- Supercharger Clutch and Isolator Failure (S7 3.0T)2012-2018
The S7 with the 3.0T supercharged V6 (2012-2018) uses an electromagnetic clutch to engage the supercharger. Over time, the clutch disc wears out or the torsional isolator (damper) fails, creating a loud rattling, grinding, or "bag of marbles" sound from the front of the engine. This is most noticeable on cold starts or under load. A failed clutch prevents the supercharger from engaging, causing significant power loss. A failed isolator damages internal supercharger components, requiring complete supercharger replacement. Oil contamination accelerates wear—if oil becomes contaminated with dirt or debris, it causes premature failure of internal components. AudiWorld forums report failures between 60,000-120,000 miles, with repair costs of $1,500-$5,000.
Audi S5(1 issue)
- 3.0T Supercharger Intercooler Pump Failure2008-2025
The water-to-air intercooler system on the S5 3.0T uses an electric coolant pump that can fail, causing elevated charge air temperatures and reduced power. Heat soak becomes severe in warm climates.
Audi S8(1 issue)
- 4.0T Turbo Coolant System Degradation2013-2024
The S8 4.0T V8 shares coolant line issues with other 4.0T Audi models but the heavier sedan and higher power tune accelerate wear. Turbo oil and coolant line failures can cause expensive damage if not caught early.
Audi SQ5(1 issue)
- 3.0T Supercharger Bearing and Intercooler Pump Failure2014-2018
The SQ5 3.0T supercharged V6 shares supercharger nose bearing issues with the S4/S5. The intercooler water pump also fails, causing heat soak and reduced performance, especially in warmer climates.
Looking for P0245 on a different make?
View P0245 across all makes →Frequently Asked Questions
What does P0245 mean on Audi?▼
P0245 stands for "Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Low." This code sets when the engine control module sees an abnormally low voltage (a short to ground or open) on the control circuit for turbocharger/supercharger wastegate solenoid "A." The wastegate solenoid regulates boost pressure by controlling the wastegate that bleeds off exhaust pressure. When the circuit reads low, the computer can no longer trust its control of boost, which can affect power and emissions. On Audi specifically, this code is documented across 4 models.
What causes P0245 on Audi vehicles?▼
Common causes on Audi: Faulty wastegate solenoid (internally shorted), Wiring shorted to ground in the solenoid circuit, Corroded or loose solenoid connector, Open or damaged control wiring, Failed PCM/ECM driver circuit (less common). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0245 on a Audi?▼
Repair costs on Audi range from $300 to $5,000, depending on the specific model and root cause.
Which Audi models have P0245 documented?▼
Au7o has documented P0245 on 4 Audi models: A7, S5, S8, SQ5.