AutoCodes – Mercedes-Benz – P0413 Mercedes-Benz

P0413 Mercedes-Benz Code - Secondary Air Injection System Switching Valve 'A' Circuit Open

Quick Answer

An air pump is used on the vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted, Air bypass solenoid circuit poor electrical connection. 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: P0413 Mercedes-Benz indicates Secondary Air Injection System Switching Valve 'A' Circuit Open.
Common causes: Common causes include Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted, Air bypass solenoid circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,732

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0413 Mercedes-Benz Description

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

OBDII Code P0413 Mercedes-Benz - Secondary Air Injection System Switching Valve 'A' Circuit Open - AutoCodes.com — P0413 Mercedes-Benz Code - Secondary Air Injection System Switching Valve 'A' Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0413 Mercedes-Benz?

Faulty Air Pump inoperative
Air bypass solenoid harness is open or shorted
Air bypass solenoid circuit poor electrical connection

How to Fix the DTC P0413 Mercedes-Benz?

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 P0413 Mercedes-Benz 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.

Need more information about the P0413 Mercedes-Benz code?

Need more information on how to fix the P0413 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0413 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area

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 P0413 Mercedes-Benz Code

1. What are common symptoms of OBDII code P0413 in a Mercedes-Benz?

The common symptoms of OBDII code P0413 in a Mercedes-Benz include rough idling, decreased engine performance, and the illumination of the check engine light.

2. What does the OBDII code P0413 in a Mercedes-Benz indicate?

OBDII code P0413 in a Mercedes-Benz indicates a malfunction in the Secondary Air Injection System Switching Valve 'A' Circuit, specifically an open circuit.

3. What are the possible causes of OBDII code P0413 in a Mercedes-Benz?

Possible causes of OBDII code P0413 in a Mercedes-Benz include a faulty secondary air injection system switching valve, damaged wiring or connectors in the circuit, or a blown fuse related to the system.

4. How can I diagnose the cause of OBDII code P0413 in my Mercedes-Benz?

To diagnose the cause of OBDII code P0413 in a Mercedes-Benz, you can perform a visual inspection of the switching valve and its wiring, test the switching valve for proper operation, and check the related fuses for continuity.

5. Can I continue driving my Mercedes-Benz with OBDII code P0413?

It is not recommended to continue driving your Mercedes-Benz with OBDII code P0413 as it can lead to further damage to the engine and emissions system. It is best to address the issue promptly.

6. How do I repair OBDII code P0413 in my Mercedes-Benz?

To repair OBDII code P0413 in a Mercedes-Benz, you may need to replace the faulty secondary air injection system switching valve, repair or replace damaged wiring or connectors, and reset the fault codes using a diagnostic tool.

7. Is the repair for OBDII code P0413 in a Mercedes-Benz costly?

The cost of repairing OBDII code P0413 in a Mercedes-Benz can vary depending on the extent of the issue and whether you perform the repairs yourself or take it to a professional mechanic. Replacing the switching valve can be a common repair cost associated with this code.

8. Can a DIY enthusiast fix OBDII code P0413 in a Mercedes-Benz?

A DIY enthusiast with the necessary tools and knowledge of automotive repair may be able to fix OBDII code P0413 in a Mercedes-Benz, especially if the issue is related to simple wiring or fuse problems. However, more complex issues may require professional assistance.

9. How important is it to address OBDII code P0413 in a Mercedes-Benz promptly?

It is important to address OBDII code P0413 in a Mercedes-Benz promptly to prevent further damage to the engine and emissions system, ensure optimal performance, and avoid potential issues with passing emissions tests.

10. Can OBDII code P0413 in a Mercedes-Benz cause long-term damage if left unresolved?

If left unresolved, OBDII code P0413 in a Mercedes-Benz can potentially lead to long-term damage to the engine, catalytic converter, and emissions system. It is best to address the issue as soon as possible to prevent costly repairs in the future.