AutoCodes – Audi – P0249 Audi

P0249 Audi Code - Turbo/Super Charger Wastegate Solenoid 'B' Low

Quick Answer

This fault code is stored in the Engine Control Module (ECM) when a fault is detected with the wastegate control solenoid circuit. Common causes include Faulty Turbo Boost Control Solenoid Valve, Turbo Boost Control Solenoid Valve harness is open or shorted, Turbo Boost Control Solenoid Valve circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0249 Audi indicates Turbo/Super Charger Wastegate Solenoid 'B' Low.
Common causes: Common causes include Faulty Turbo Boost Control Solenoid Valve, Turbo Boost Control Solenoid Valve harness is open or shorted, Turbo Boost Control Solenoid Valve circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,927

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0249 Audi Description

This fault code is stored in the Engine Control Module (ECM) when a fault is detected with the wastegate control solenoid circuit. The purpose of the control system is to limit the boost pressure to allow for optimum performance without the risk of engine damage due to excessive boost pressure. The electrical circuit is monitored for open circuit, short circuit, and high resistance conditions.

OBDII Code P0249 Audi - Turbo/Super Charger Wastegate Solenoid 'B' Low - AutoCodes.com — P0249 Audi Code - Turbo/Super Charger Wastegate Solenoid 'B' Low

What does this mean?

What are the Possible Causes of the DTC P0249 Audi?

Faulty Turbo Boost Control Solenoid Valve
Turbo Boost Control Solenoid Valve harness is open or shorted
Turbo Boost Control Solenoid Valve circuit poor electrical connection
Faulty Engine Control Module (ECM)
Faulty Wastegate

How to Fix the DTC P0249 Audi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0249 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0249 Audi Code

1. What does the OBDII code P0249 mean on an Audi?

P0249 indicates a problem with the Turbo/Supercharger Wastegate Solenoid 'B', specifically a low input signal detected by the engine control module (ECM).

2. What are the symptoms of code P0249 on an Audi?

Common symptoms include reduced engine performance, poor acceleration, excessive turbo lag, a check engine light, and possibly reduced fuel efficiency.

3. What causes the P0249 code to appear on an Audi?

Possible causes include a malfunctioning wastegate solenoid, damaged wiring or connectors, a faulty ECM, or issues with the turbocharger system such as blockages or leaks.

4. Can I drive my Audi with the P0249 code?

While your vehicle may still be drivable, it could experience reduced performance. Prolonged driving with this issue may cause further damage to the turbocharger system.

5. How can I diagnose the P0249 code on my Audi?

Start by inspecting the wastegate solenoid 'B', wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

6. What repairs can fix the P0249 code on an Audi?

Repairs may include replacing the wastegate solenoid, repairing or replacing damaged wiring, cleaning or repairing the turbocharger, or updating/reprogramming the ECM if necessary.

7. How much does it cost to fix the P0249 code on an Audi?

Repair costs vary but typically range between $150 and $500, depending on whether the solenoid, wiring, or other components need replacement.

8. Can a dirty turbocharger cause the P0249 code?

Yes, a dirty or clogged turbocharger can affect wastegate function and trigger the P0249 code, as it may prevent proper regulation of boost pressure.

9. Does the P0249 code always require replacing the wastegate solenoid?

Not always. Sometimes the issue lies in the wiring, connectors, or other related components. Proper diagnosis is crucial to avoid unnecessary replacements.

10. Will clearing the P0249 code fix the issue?

Clearing the code without addressing the root cause will not resolve the problem. The code may reappear if the underlying issue is not repaired.