P0758 Audi Code - Shift Solenoid 'B' Electrical
Quick Answer
Shift solenoid valve 'B' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve. 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
- P0758 Audi indicates Shift Solenoid 'B' Electrical.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve.
- 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.
Code P0758 Audi Description
What are the Possible Causes of the DTC P0758 Audi?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 'B' valve
- Shift solenoid 'B' valve harness or connectors
- Shift solenoid 'B' valve circuit is open or shorted
How to Fix the DTC P0758 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 P0758 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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Frequently Asked Questions about P0758 Audi Code
1. What does the OBDII code P0758 mean on an Audi?
P0758 indicates an electrical issue with Shift Solenoid 'B' in the transmission, which is responsible for controlling gear shifts.
2. What are the common symptoms of the P0758 code in an Audi?
Symptoms may include erratic or harsh shifting, being stuck in one gear, poor fuel economy, or the vehicle entering limp mode.
3. What causes the P0758 code to appear in an Audi?
Possible causes include a faulty shift solenoid 'B,' damaged wiring or connectors, a malfunctioning transmission control module (TCM), or low transmission fluid.
4. Can I still drive my Audi with the P0758 code?
Driving with this code is not recommended, as it can lead to further transmission damage or unsafe driving conditions due to improper gear shifting.
5. How do I diagnose the P0758 code in my Audi?
Start by checking the transmission fluid level and condition, inspecting wiring and connectors for damage, and testing the shift solenoid 'B' for proper operation.
6. How much does it cost to fix the P0758 code on an Audi?
Repairs can range from $100–$400 for wiring repairs to over $1,000 if the shift solenoid or TCM needs replacement, depending on labor costs and parts.
7. Can low transmission fluid cause the P0758 code?
Yes, low or contaminated transmission fluid can lead to improper operation of shift solenoids and trigger this code.
8. How can I prevent the P0758 code from occurring?
Regularly maintain your transmission with fluid changes as recommended by Audi and inspect wiring for wear or damage during routine checks.
9. Does clearing the P0758 code fix the problem?
Clearing the code without addressing the root cause will only temporarily erase the warning; the issue will likely reappear.
10. Do I need to replace the transmission to fix the P0758 code on an Audi?
Not necessarily. This code often indicates an issue with a specific solenoid or electrical component, so replacing the entire transmission is usually not required.
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