AutoCodes – Mercedes-Benz – P0570 Mercedes-Benz

P0570 Mercedes-Benz Code - Cruise Control Accel Signal Malfunction

Quick Answer

The cruise control system keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received. Common causes include Faulty Cruise Control Accel Switch, Cruise Control Accel Switch harness is open or shorted, Cruise Control Accel Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P0570 Mercedes-Benz indicates Cruise Control Accel Signal Malfunction.
Common causes: Common causes include Faulty Cruise Control Accel Switch, Cruise Control Accel Switch harness is open or shorted, Cruise Control Accel Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 3,203

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0570 Mercedes-Benz Description

The cruise control system keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received. When the main switch is turned on with the vehicle in running mode, the battery voltage is applied to the Engine Control Module (ECM). When a signal from the control switch is input to the ECM while the vehicle is in a state, the ECM controls fuel injection to make a car go at a steady speed you want. Also, while the system is operating, the "CRUISE" indicator lamp in the meter assembly lights up. The ECM monitors the Cruise Control Accel signal and sets the OBDII codes when the Cruise Control Accel Switch is not to factory specifications.

OBDII Code P0570 Mercedes-Benz - Cruise Control Accel Signal Malfunction - AutoCodes.com — P0570 Mercedes-Benz Code - Cruise Control Accel Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC P0570 Mercedes-Benz?

Faulty Cruise Control Accel Switch
Cruise Control Accel Switch harness is open or shorted
Cruise Control Accel Switch circuit poor electrical connection

How to Fix the DTC P0570 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 P0570 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 P0570 Mercedes-Benz code?

Need more information on how to fix the P0570 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0570 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 P0570 Mercedes-Benz Code

1. What does the OBDII code P0570 mean for a Mercedes-Benz?

P0570 indicates a malfunction in the cruise control acceleration signal, meaning the system may not properly interpret inputs related to accelerating while cruise control is engaged.

2. What are the common symptoms of P0570 in a Mercedes-Benz?

Symptoms include the cruise control failing to engage, erratic acceleration behavior when cruise control is active, or an illuminated check engine light.

3. What causes the P0570 code to appear in a Mercedes-Benz?

Common causes include a faulty cruise control switch, damaged wiring or connections, or issues with the electronic control module (ECM).

4. Can I drive my Mercedes-Benz with the P0570 code active?

While the vehicle may still be driveable, the cruise control functionality will likely be impaired, and ignoring the code could lead to further electrical issues.

5. How do I diagnose the P0570 code in a Mercedes-Benz?

Diagnosis typically involves checking the cruise control switch, inspecting wiring for damage, and using a diagnostic scanner to monitor related sensor inputs.

6. What are some repair options for the P0570 code in a Mercedes-Benz?

Repairs may include replacing a faulty cruise control switch, repairing or replacing damaged wiring, or reprogramming the ECM if necessary.

7. How much does it cost to fix the P0570 code on a Mercedes-Benz?

Repair costs can vary, but replacing a cruise control switch typically costs $100-$300, while wiring repairs or ECM reprogramming may increase costs.

8. Can a bad battery cause the P0570 code in a Mercedes-Benz?

While unlikely, electrical issues caused by a failing battery could indirectly lead to this code appearing due to unstable voltage affecting the cruise control system.

9. How can I prevent the P0570 code from appearing on a Mercedes-Benz?

Regular maintenance of electrical components, avoiding moisture exposure in sensitive areas, and addressing wiring issues promptly can help prevent this code.

10. Will resetting the code fix the P0570 issue on a Mercedes-Benz?

Resetting the code may clear it temporarily, but the underlying issue must be addressed to prevent the code from reappearing.