Engine-CodesAudi – P0746 Audi

P0746 Audi Code - Pressure Control Solenoid 'A' Performance Or Stuck Off

Quick Answer

The P0746 code in Audi vehicles indicates a problem with the Pressure Control Solenoid 'A' performance or that it is stuck off. Common causes include Faulty pressure control solenoid 'A', Wiring or connector issues, Transmission control module malfunction. 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
P0746 Audi indicates Pressure Control Solenoid 'A' Performance Or Stuck Off.
Common causes
Common causes include Faulty pressure control solenoid 'A', Wiring or connector issues, Transmission control module malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0746 Audi Description

The P0746 code in Audi vehicles indicates a problem with the Pressure Control Solenoid 'A' performance or that it is stuck off. The pressure control solenoid is a crucial component of the transmission system, responsible for regulating the hydraulic pressure in the transmission. When this solenoid malfunctions, it can lead to various issues with the transmission's performance, affecting the overall drivability of the vehicle.

OBDII Code P0746 Audi - Pressure Control Solenoid 'A' Performance Or Stuck Off
P0746 Audi Code - Pressure Control Solenoid 'A' Performance Or Stuck Off

Common Causes of P0746 Audi

  1. Faulty pressure control solenoid 'A'
  2. Wiring or connector issues
  3. Transmission control module malfunction
  4. Low transmission fluid level
  5. Contaminated transmission fluid

Symptoms of P0746 Audi

  1. Erratic shifting behavior
  2. Harsh or delayed shifting
  3. Transmission slipping
  4. Transmission not shifting at all

How to Fix P0746 Audi

  1. Perform a diagnostic scan to confirm the P0746 code and identify the exact cause of the issue.
  2. Inspect the pressure control solenoid 'A' for any signs of damage or malfunction and replace if necessary.
  3. Check the wiring and connectors for any faults or corrosion and repair or replace as needed.
  4. Verify the transmission fluid level and condition, topping up or replacing as required.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0746 Audi

The typical repair costs for addressing the P0746 code in an Audi vehicle can range from $200 to $500, including parts and labor. However, it's essential to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships. Independent shops often charge less, so it's advisable to check local rates for a more accurate estimate.

Tech Notes for P0746 Audi

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

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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 P0746 Audi Code

What does the OBDII code P0746 mean for an Audi?

P0746 indicates an issue with the Pressure Control Solenoid 'A,' which may be malfunctioning, stuck off, or not performing as expected, causing transmission performance problems.

What are the common symptoms of code P0746 in an Audi?

Symptoms may include harsh or delayed shifting, transmission slipping, reduced fuel efficiency, or the vehicle entering "limp mode."

What causes the P0746 code to trigger in an Audi?

Common causes include a faulty pressure control solenoid, low or dirty transmission fluid, a clogged transmission filter, wiring issues, or internal transmission problems.

Can I drive my Audi with the P0746 code?

Driving with this code is not recommended, as it can lead to further transmission damage or safety issues if shifting problems worsen.

How do I diagnose the P0746 code in my Audi?

Diagnosis typically involves checking the transmission fluid level and quality, inspecting wiring and connectors, testing the solenoid with a multimeter, and possibly performing a transmission pressure test.

What repairs are commonly needed for the P0746 code in an Audi?

Repairs may include replacing the pressure control solenoid, cleaning or replacing the transmission filter, repairing damaged wiring, or performing a transmission fluid flush.

How much does it cost to repair the P0746 code on an Audi?

Repair costs can vary widely, ranging from $150 to $450 for solenoid replacement or more if internal transmission damage is found.

Can low transmission fluid cause the P0746 code in an Audi?

Yes, low or dirty transmission fluid can cause insufficient pressure, leading to solenoid malfunction and triggering the P0746 code.

How can I prevent the P0746 code from occurring in my Audi?

Regularly maintaining your transmission by changing the fluid and filter as recommended and addressing any transmission issues promptly can help prevent this code.

Will resetting the check engine light fix the P0746 code in an Audi?

Resetting the light without addressing the underlying issue will not fix the problem, and the code is likely to return.

Discuss the causes and fixes for P0746 Audi OBDII Code

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