Mercedes Benz M-Class Fault Codes
You can find common Mercedes Benz M-Class fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Mercedes Benz M-Class Recall Notices
Common Mercedes Benz M-Class Codes
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Mercedes Benz M-Class Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Mercedes Benz M-Class has any recall notices on our sister site AutoRecalls.co, sorted by model year.
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Common M-Class Fault Codes
These are the most common M-Class fault codes that people are searching for.
4/10
P0128
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
Learn More Fixes P1831
Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Ground
Learn More
8/10
P0106
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
Learn More Fixes
- Manufacturer: Mercedes Benz
About the M-Class
The M-Class first made its debut back in 1997 under the German manufacturer. The model then saw three generations until its renaming. The nameplate was retired during the third generation to the GLE to align it with the SUV range.
Including the new version, there have been a total of four generations, with the latest GLE being released in 2019.
Despite original plans for the M-Class to replace the G-Class, Mercedes changed this because of consistent demand for both models. Competition from outside of manufacturers comes from Audi Q7, BMW X5, and Volvo XC90.
There are a number of fault codes that have been known to affect a number of Mercedes SUVs, most likely owing to shared mechanical systems and components. The most common of these is P2006, which is logged when the intake manifold runner is stuck closed.
Finding the cause of this issue is known to be fairly problematic but owners have reported that checking the runner actuator is one of the best first steps.
The SUV is also known to suffer from P0128. This code is logged when the engine coolant temperature is not reaching the desired temperature.
This is usually caused by a faulty thermostat. Another common cause is incorrect coolant fluid levels. Thankfully, both of these are relatively easy fixes.
Fault code P0455 is another fairly common problem for these models.
This is logged when a leak in the EVAP system is detected. One of the most common causes is a loose gas cap, but there can also be actual leaks in the EVAP hoses or components.
