Mercedes Benz CLS-Class Fault Codes
You can find common Mercedes Benz CLS-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.
Jump To:Search Mercedes Benz CLS-Class Codes Mercedes Benz CLS-Class Recall Notices Common Mercedes Benz CLS-Class Codes
Search Mercedes Benz CLS-Class Codes
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Mercedes Benz CLS-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 CLS-Class has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Mercedes Benz CLS-Class Recalls »
Common CLS-Class Fault Codes
These are the most common CLS-Class fault codes that people are searching for.
Intake Manifold Runner Control Stuck Closed Bank 1Learn More
System Gross Leak Evaporative EmissionLearn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Diesel Particulate Filter Restriction - Soot AccumulationLearn More
Secondary Air Injection System MalfunctionLearn More
Incorrect Gear RatioLearn More
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
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
Transmission Range Sensor Circuit Malfunction (PRNDL Input)Learn More Fixes
Turbo / Super Charger UnderboostLearn More Fixes
Lost Communication With Instrument Panel Cluster (IPC) Control ModuleLearn More Fixes
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
Control Module Communication Bus "A" OffLearn More Fixes
Lost Communication With Glow Plug Control ModuleLearn More Fixes
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
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)Learn More Fixes
System Too Lean (Bank 1)Learn More Fixes
System Too Rich (Bank 1)Learn More Fixes
System Too Rich (Bank 2)Learn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Cylinder 3 Misfire DetectedLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Cylinder 5 Misfire DetectedLearn More Fixes
Cylinder 6 Misfire DetectedLearn More Fixes
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)Learn More Fixes
Knock Sensor 2 Circuit Low Input (Bank 2)Learn More Fixes
Crankshaft Position Sensor A Circuit MalfunctionLearn More Fixes
Camshaft Position Sensor Circuit Range/PerformanceLearn More Fixes
Exhaust Gas Recirculation Flow Insufficient DetectedLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Evaporative Emission Control System Leak DetectedLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
- Manufacturer: Mercedes Benz
About the CLS-Class
The CLS first made its debut in 2004 as a 4-door fastback sedan. It has also been sold as a station wagon variant called the CLS Shooting Brake. Since its release, there have been three generations to hit the markets. The latest version first made its debut in 2018.
The model is often considered a sleeker version of the E-Class, the sibling with which it shares the most mechanical similarities to.
In terms of the Mercedes-Benz lineup, the model sits between the E-Class and S-Class. Rivals for the model include the Audi A7 Sportback, BMW 8 Series Gran Coupe, and Porsche Panamera.
One of the most common problem the model has faced is fault code P2006, which is an issue with the intake manifold.
This can be quite a tricky code to diagnose and fix. Owners have found success with a number of solutions, from changing the MAF sensor to reseating the airbox.
Another fairly common issue is represented by P0455, which is a significant leak in the evaporative emission control (EVAP) system. Thankfully, this is not a very serious problem.
This can be caused by leaks in the tubing in the system, as well as defective components in the system. Some owners have also found success with simply tightening or replacing a faulty fuel cap.
Another fairly common and mild problem for the model is P0128, which represents an issue with the temperature of the thermostat coolant. Rather than overheating, this code indicates that the coolant is not reaching the desired operating temperature fast enough, which can affect performance.
One of the most likely causes for this issue is a failed thermostat, which should be replaced. It is also a good idea to have the coolant replaced to the correct level as having both too high or too low levels can cause this issue.