P0473 Audi Code - Exhaust Pressure Sensor High
Quick Answer
The P0473 code in an Audi indicates an issue with the exhaust pressure sensor reading higher than the expected range. Common causes include Faulty exhaust pressure sensor, Clogged or restricted exhaust system components, Exhaust system leaks. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0473 Audi indicates Exhaust Pressure Sensor High.
- Common causes
- Common causes include Faulty exhaust pressure sensor, Clogged or restricted exhaust system components, Exhaust system leaks.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0473 Audi Description
The P0473 code in an Audi indicates an issue with the exhaust pressure sensor reading higher than the expected range. The exhaust pressure sensor plays a crucial role in monitoring the pressure levels in the exhaust system, which helps the engine control module (ECM) adjust fuel injection and exhaust gas recirculation (EGR) rates for optimal performance and emissions control. When the sensor detects a high pressure reading that is outside the normal range, it can lead to various performance issues and potentially cause long-term damage to the engine and exhaust system.
Common Causes of P0473 Audi
- Faulty exhaust pressure sensor
- Clogged or restricted exhaust system components
- Exhaust system leaks
- Issues with the EGR valve
Symptoms of P0473 Audi
- Decreased fuel efficiency
- Loss of power
- Rough idling
- Engine misfires
- Check engine light illuminated
How to Fix P0473 Audi
- Diagnose the specific cause of the high exhaust pressure by using a diagnostic scanner to retrieve the fault code and perform a thorough inspection of the exhaust system components.
- Replace the faulty exhaust pressure sensor if it is determined to be the cause of the issue.
- Clear the fault code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.
- Inspect and clean any clogged or restricted exhaust system components, such as the DPF (diesel particulate filter) or catalytic converter, to ensure proper exhaust flow.
- Check for any exhaust system leaks and repair or replace any damaged components as needed.
Cost to Fix P0473 Audi
The typical repair costs for addressing a P0473 code in an Audi can range from $200 to $500, including parts and labor. However, the 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. It is advisable to check local rates for a more precise estimate, as rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
Tech Notes for P0473 Audi
When is the Code Detected?
Need more information about the P0473 Audi code?
Need more information on how to fix the P0473 Audi code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0473 Audi code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0473 Audi Code
1. What are the common symptoms of OBDII code P0473 in an Audi related to the Exhaust Pressure Sensor High?
- Common symptoms include reduced engine power, poor fuel efficiency, and potentially a Check Engine light illuminated on the dashboard.
2. What are the possible causes of OBDII code P0473 in an Audi?
- The code P0473 in an Audi is often triggered by a faulty exhaust pressure sensor, wiring issues, or a problem with the diesel particulate filter.
3. How can I diagnose the OBDII code P0473 in my Audi?
- Diagnosis involves using a scan tool to read the code, inspecting the exhaust pressure sensor and related wiring for any visible damage, and testing the sensor's functionality.
4. Can I drive my Audi with the OBDII code P0473 present?
- It is not recommended to drive with the code P0473 active, as it can lead to further damage to the engine or emissions system. It is best to address the issue promptly.
5. How can I repair OBDII code P0473 in my Audi?
- Repair typically involves replacing the faulty exhaust pressure sensor, repairing any damaged wiring, and ensuring proper functioning of the diesel particulate filter system.
6. Is it possible to clear the OBDII code P0473 in my Audi without fixing the issue?
- Clearing the code without addressing the underlying problem is not recommended, as the issue will likely reoccur and could lead to more severe complications.
7. Are there any preventive maintenance tips to avoid OBDII code P0473 in my Audi?
- Regularly servicing the exhaust system, including the pressure sensor and diesel particulate filter, can help prevent issues that may trigger code P0473.
8. How much does it cost to repair OBDII code P0473 in an Audi?
- The cost of repair can vary depending on the extent of the issue and whether you choose to address it yourself or take it to a professional mechanic. It is advisable to get a quote for an accurate estimate.
9. Can a DIY enthusiast fix OBDII code P0473 in an Audi?
- Depending on your skill level and access to tools, you may be able to replace the exhaust pressure sensor or repair wiring yourself. However, complex issues may require professional assistance.
10. Will OBDII code P0473 cause my Audi to fail an emissions test?
- Yes, the presence of code P0473 may cause your Audi to fail an emissions test, as it indicates a problem with the exhaust pressure sensor or emissions system.
Discuss the causes and fixes for P0473 Audi OBDII Code
Code P0473 Audi comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.