You can find common Mercedes Benz GLC fault codes on this page that when clicked take you to a detailed description.
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Mercedes Benz GLC 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 GLC has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Mercedes Benz GLC Recalls »
Common GLC Fault Codes
These are the most common GLC fault codes that people are searching for.
NOx Adsorber Efficiency Below Threshold Bank 1Learn More
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
Secondary Air Injection System MalfunctionLearn More
Intake Manifold Runner Control Stuck Closed Bank 1Learn More
Diesel Particulate Filter Restriction - Soot AccumulationLearn More
Incorrect Gear RatioLearn More
Hydraulic Base Brake FailureLearn More
ABS Acceleration Switch Circuit FailureLearn More
ABS Outlet Valve Coil RF Circuit FailureLearn More
ABS Hydraulic Valve Circuit FailureLearn More
PRNDL Switch Circuit FailureLearn More
Lost Communication with TCMLearn More
Contr. Module LockedLearn More
Intake Manifold Runner Control (Stuck Closed)Learn More
Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To GroundLearn More
Calibration Resistor Out Of RangeLearn More
4X4 Initialization FailureLearn More
PSP Switch Out of Self Test RangeLearn More
Transmission Transfer Case Contact Plate 'D' Circuit FailureLearn More
Transmission Transfer Case Shift Motor Short Circuit To BatteryLearn More
Transmission Automatic 4-Wheel Drive Indicator (Lamp) Circuit FailureLearn More
Transmission Mechanical 4-Wheel Drive Axle Lock Lamp Circuit FailureLearn More
DPFE Sensor Upstream Hose Off Or PluggedLearn More
EGR Flow Out Of Self Test RangeLearn More
Dual Alternator Upper FaultLearn More
Pump Speed Signal FaultLearn More
Inductive Signature Chip Communication ErrorLearn More
DPFE Circuit Low InputLearn More
Fuel Tank Pressure Relief Valve MalfunctionLearn More
GLOW PLUG FAILURELearn More
Traction Control Output Circuit MalfunctionLearn More
Ignition Coil C Primary Circuit MalfunctionLearn More
- Manufacturer: Mercedes Benz
About the GLC
The compact crossover GLC first made its debut in 2015. Since then, Mercedes has released only two generations. The latest of these hit the markets in 2022.
The name of the model follows the standard convention for the latest Mercedes-Benz SUVs. The ‘G’ pays homage to the long-running G-Class series, while the ‘C’ indicates that it is in line with the C-Class in terms of quality. The ‘L’ was given to distinguish the SUV models.
The crossover class has become very competitive, putting the GLC up against some serious contenders. Of course, when it comes to a Mercedes model, the main competition comes from the Audi Q5 and BMW X3. Other notable competition comes from the Volvo XC40 and Porsche Macan.
Interestingly, the most common fault code that the GLC faces is P2000, which is a fairly rare code. This indicates that the NOx trap in the exhaust system is not functioning properly.
This code can be a sign that the catalytic converter is failing, which makes it important to have it checked quickly to prevent expensive repairs.
Another issue that the model faces is one that a few Mercedes-Benz SUVs face. Fault code P0171 indicates that the engine is running too lean.
It can be very problematic just to find the cause of the issue. Anything that is part of the air or fuel systems can be the cause of the problem.
Another fairly serious problem that the GLC is known for facing is P0100, which represents a circuit malfunction for the MAF sensor. Owners have reported that a dirty MAF is one of the most common causes of the issue. This is also true of a faulty sensor.