AutoCodes – Mercedes-Benz – P0113 Mercedes-Benz

P0113 Mercedes-Benz Code - Intake Air Temperature Circuit High Input

Quick Answer

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor harness is open or shorted. 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: P0113 Mercedes-Benz indicates Intake Air Temperature Circuit High Input.
Common causes: Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor harness is open or shorted.
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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

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

Code Popularity 28,894

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

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

Code P0113 Mercedes-Benz Description

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle.

OBDII Code P0113 Mercedes-Benz - Intake Air Temperature Circuit High Input - AutoCodes.com — P0113 Mercedes-Benz Code - Intake Air Temperature Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0113 Mercedes-Benz?

Faulty Intake Air Temperature (IAT) sensor
Dirty air filter
Intake Air Temperature (IAT) sensor harness is open or shorted
Intake Air Temperature (IAT) sensor circuit poor electrical connection

How to Fix the DTC P0113 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 P0113 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 P0113 Mercedes-Benz code?

Need more information on how to fix the P0113 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0113 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 P0113 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0113 in a Mercedes-Benz?

- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What does the OBDII code P0113 in a Mercedes-Benz indicate?

- P0113 indicates a high input from the intake air temperature (IAT) sensor circuit.

3. What are the possible causes of OBDII code P0113 in a Mercedes-Benz?

- Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the cause of OBDII code P0113 in my Mercedes-Benz?

- You can use a multimeter to test the IAT sensor, inspect the wiring and connectors for damage, and perform a scan tool diagnosis to check the ECM.

5. Can a dirty air filter trigger OBDII code P0113 in a Mercedes-Benz?

- Yes, a dirty air filter can affect the IAT sensor readings and potentially trigger code P0113. Regular air filter maintenance is recommended.

6. Is it safe to continue driving with OBDII code P0113 in my Mercedes-Benz?

- It is not recommended to drive with unresolved code P0113, as it can lead to further engine issues and potential damage if left unattended.

7. How can I reset OBDII code P0113 in my Mercedes-Benz after making repairs?

- You can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes to clear the ECM's memory.

8. Can a DIY enthusiast repair OBDII code P0113 in a Mercedes-Benz?

- Depending on your skill level and access to tools, DIY repair of code P0113 is possible, especially for tasks like replacing the IAT sensor or fixing wiring issues.

9. Will fixing OBDII code P0113 improve my Mercedes-Benz's fuel efficiency?

- Yes, resolving code P0113 can help improve fuel efficiency by ensuring proper intake air temperature readings for optimal engine performance.

10. How much does it typically cost to repair OBDII code P0113 in a Mercedes-Benz?

- The cost of repairing code P0113 can vary depending on the root cause, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.