P0507 Mercedes-Benz Code - Idle Control System RPM Higher Than Expected
Quick Answer
The Engine Control Module (ECM) controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator. 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
- P0507 Mercedes-Benz indicates Idle Control System RPM Higher Than Expected.
- Common causes
- Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator.
- 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 P0507 Mercedes-Benz Description
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily. The optimum value stored in the ECM is determined by taking into consideration various engine conditions, such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan operation, etc.)
What are the Possible Causes of the DTC P0507 Mercedes-Benz?
- Dirty throttle body
- Electric throttle control actuator misadjusted or damaged
- Faulty Electric throttle control actuator
- Intake air leak
- Poor electrical connection to the Intake Air Control (IAC) valve
How to Fix the DTC P0507 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0507 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 P0507 Mercedes-Benz code?
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Frequently Asked Questions about P0507 Mercedes-Benz Code
1. What are common symptoms of OBDII code P0507 in a Mercedes-Benz?
- Common symptoms include high idle speed, rough idling, stalling at idle, and possible check engine light illumination.
2. What causes the OBDII code P0507 in a Mercedes-Benz?
- The code is typically triggered by a malfunction in the idle air control system, vacuum leaks, faulty throttle body, or issues with the electronic throttle control system.
3. How can I diagnose the cause of OBDII code P0507 in my Mercedes-Benz?
- Diagnosing the issue may involve checking for vacuum leaks, inspecting the throttle body, testing the idle air control valve, and scanning the electronic throttle control system for faults.
4. Can a dirty throttle body cause OBDII code P0507 in a Mercedes-Benz?
- Yes, a dirty or clogged throttle body can disrupt the airflow and lead to higher than expected idle speed, triggering the P0507 code.
5. What are some repair tips for fixing OBDII code P0507 in a Mercedes-Benz?
- Repair tips may include cleaning the throttle body, replacing the idle air control valve, fixing any vacuum leaks, checking the electronic throttle control system, and resetting the idle speed.
6. Is it safe to drive my Mercedes-Benz with OBDII code P0507?
- It is generally not recommended to drive with the P0507 code active, as it can lead to poor engine performance and potential stalling issues.
7. Can a DIYer fix OBDII code P0507 in a Mercedes-Benz?
- Depending on the underlying cause, some DIYers may be able to address the issue by following repair procedures outlined in the vehicle's service manual.
8. Will resetting the ECU clear OBDII code P0507 in a Mercedes-Benz?
- Resetting the ECU may temporarily clear the code, but it is important to address the root cause of the issue to prevent the code from reappearing.
9. How much does it typically cost to repair OBDII code P0507 in a Mercedes-Benz?
- The cost of repairs can vary depending on the cause of the issue, but it may involve expenses for parts and labor ranging from a few hundred to over a thousand dollars.
10. Can extreme weather conditions trigger OBDII code P0507 in a Mercedes-Benz?
- Extreme weather conditions, such as very cold temperatures, can sometimes exacerbate issues related to idle control systems and potentially trigger the P0507 code.
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