AutoCodes – Mercedes-Benz – P2768 Mercedes-Benz

P2768 Mercedes-Benz Code - Input/Turbine Speed Sensor 'B' Circuit Intermittent

Quick Answer

This fault code is stored in the engine control module when a malfunction is detected with the input or turbine shaft speed sensor circuit. Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor circuit poor electrical connection. 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: P2768 Mercedes-Benz indicates Input/Turbine Speed Sensor 'B' Circuit Intermittent.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor circuit poor electrical connection.
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.

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Code Popularity 4,814

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jan 12, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2768 Mercedes-Benz Description

This fault code is stored in the engine control module when a malfunction is detected with the input or turbine shaft speed sensor circuit. The transmission slip can be monitored by comparing both input and output speed. The actual gear ratio selected can also be determined from this data. The circuit is designed to avoid potential damage to over-speed conditions.

OBDII Code P2768 Mercedes-Benz - Input/Turbine Speed Sensor 'B' Circuit Intermittent - AutoCodes.com — P2768 Mercedes-Benz Code - Input/Turbine Speed Sensor 'B' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P2768 Mercedes-Benz?

Faulty Vehicle Speed Sensor
Vehicle Speed Sensor harness is open or shorted
Vehicle Speed Sensor circuit poor electrical connection

How to Fix the DTC P2768 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 P2768 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 P2768 Mercedes-Benz code?

Need more information on how to fix the P2768 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2768 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 P2768 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P2768 in a Mercedes-Benz?

- Common symptoms include erratic shifting, delayed or harsh gear changes, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P2768 in a Mercedes-Benz?

- Possible causes include a faulty input/turbine speed sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning transmission control module.

3. How can I diagnose the cause of OBDII code P2768 in my Mercedes-Benz?

- A thorough diagnostic scan using an OBDII scanner can help pinpoint the issue. Additionally, inspecting the input/turbine speed sensor and its wiring for any visible damage is recommended.

4. Can I continue driving my Mercedes-Benz with OBDII code P2768 present?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the transmission and potentially leave you stranded on the road.

5. Is it possible to repair OBDII code P2768 in a Mercedes-Benz without professional help?

- While some DIY enthusiasts may attempt to replace the input/turbine speed sensor themselves, it is advisable to seek professional help for an accurate diagnosis and proper repair.

6. How much does it typically cost to repair OBDII code P2768 in a Mercedes-Benz?

- The cost of repairs can vary depending on the exact cause of the code and local labor rates. Replacing the input/turbine speed sensor or repairing wiring issues may cost a few hundred dollars.

7. Can a low battery voltage trigger OBDII code P2768 in a Mercedes-Benz?

- Yes, low battery voltage or electrical issues in the vehicle can sometimes trigger this code. It's essential to ensure the battery and charging system are in good condition.

8. Are there any preventive maintenance tips to avoid OBDII code P2768 in a Mercedes-Benz?

- Regularly servicing the transmission, checking for fluid leaks, and addressing any warning signs promptly can help prevent issues that lead to this OBDII code.

9. How urgent is it to address OBDII code P2768 in a Mercedes-Benz?

- It is recommended to address this code as soon as possible to prevent further transmission damage and potential safety hazards while driving.

10. Can a Mercedes-Benz dealership help with diagnosing and repairing OBDII code P2768?

- Yes, authorized Mercedes-Benz dealerships have the expertise and specialized equipment to accurately diagnose and repair OBDII codes like P2768 in your vehicle.