AutoCodes – Mercedes-Benz – P0761 Mercedes-Benz

P0761 Mercedes-Benz Code - Shift Solenoid 'C' Performance or Stuck Off

Quick Answer

Shift solenoid valve 'C' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'C' valve. 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: P0761 Mercedes-Benz indicates Shift Solenoid 'C' Performance or Stuck Off.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'C' valve.
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 5,384

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0761 Mercedes-Benz Description

OBDII Code P0761 Mercedes-Benz - Shift Solenoid 'C' Performance or Stuck Off - AutoCodes.com — P0761 Mercedes-Benz Code - Shift Solenoid 'C' Performance or Stuck Off

What does this mean?

What are the Possible Causes of the DTC P0761 Mercedes-Benz?

Low transmission fluid level
Dirty transmission fluid
Faulty shift solenoid 'C' valve
Shift solenoid 'C' valve harness or connectors
Shift solenoid 'C' valve circuit is open or shorted

How to Fix the DTC P0761 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 does this mean?

Code Tech Notes

When the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0761 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 P0761 Mercedes-Benz code?

Need more information on how to fix the P0761 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0761 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 P0761 Mercedes-Benz Code

1. What does the OBDII code P0761 mean for a Mercedes-Benz?

P0761 indicates that the transmission's shift solenoid 'C' is not functioning properly, either due to performance issues or being stuck in the "off" position.

2. What are the common symptoms of the P0761 code in a Mercedes-Benz?

Symptoms may include harsh or delayed shifting, the transmission getting stuck in one gear, reduced fuel efficiency, and the check engine light being illuminated.

3. What causes the P0761 code to appear on a Mercedes-Benz?

Common causes include a faulty shift solenoid 'C,' low or dirty transmission fluid, wiring or connector issues, or internal transmission mechanical problems.

4. Can driving with the P0761 code damage my Mercedes-Benz?

Yes, continuing to drive with this code can cause further damage to the transmission and lead to costly repairs if not addressed promptly.

5. How is the P0761 code diagnosed in a Mercedes-Benz?

A technician will typically use a scan tool to confirm the code, inspect the transmission fluid, check the solenoid and related wiring, and perform hydraulic pressure tests if necessary.

6. Can I fix the P0761 code on my Mercedes-Benz by replacing the transmission fluid?

Replacing dirty or low transmission fluid may resolve the issue if fluid quality is the root cause, but further diagnostics are needed to confirm.

7. How much does it cost to repair the P0761 code on a Mercedes-Benz?

Repair costs can range from $150 to $400 for solenoid replacement, but may increase if additional transmission repairs are required.

8. Where is the shift solenoid 'C' located on a Mercedes-Benz?

The shift solenoid 'C' is located inside the transmission, typically mounted on the valve body.

9. Can a bad TCM (Transmission Control Module) cause the P0761 code?

Yes, a malfunctioning TCM can cause improper signals to the solenoid, triggering the P0761 code.

10. Is it safe to clear the P0761 code without fixing the issue on my Mercedes-Benz?

Clearing the code without resolving the underlying problem may temporarily turn off the check engine light, but the issue will likely return and may worsen over time.