AutoCodes.com | All About OBDII Engine Codes
AutoCodes - BMW - P0668 BMW

P0668 BMW Code - DME Internal Fault Interior Temperature Sensor Signal

- Code Popularity: 5,104 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P0668 BMW?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Obstructions in the airflow of the radiator or transmission cooler
  • Kinked or damaged transmission fluid lines
  • Damage to the transmission cooler
⚠ Does your BMW have Safety Recalls? → Check here

How to Fix the DTC P0668 BMW?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

Replace DME as sensor is internal component

Search for P0668 BMW Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0668 BMW code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0668 BMW Description

The control solenoid (w/body and TCM) valve assembly has a built-in TCM temperature sensor to detect possible overtemperature conditions of the Transmission Control Module (TCM). This fault indicates the TCM is in an overtemperature condition and the TCM has shut down to protect from possible heat damage to the TCM. TCM will remain off until the over temperature condition no longer exists.

OBDII Code P0668 BMW - DME Internal Fault Interior Temperature Sensor Signal - AutoCodes.com
P0668 BMW Code - DME Internal Fault Interior Temperature Sensor Signal

Need More Information on the Code?

Need more information on how to fix the P0668 BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0668 BMW code diagnosed by a professional: Find a repair shop in your area

Code P0668 BMW comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0668 BMW code? Have you replaced any parts?
Any information is appreciated. Thanks