You can find common Mercedes Benz R-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 R-Class Codes Mercedes Benz R-Class Recall Notices Common Mercedes Benz R-Class Codes
Search Mercedes Benz R-Class Codes
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Mercedes Benz R-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 R-Class has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Mercedes Benz R-Class Recalls »
Common R-Class Fault Codes
These are the most common R-Class fault codes that people are searching for.
Intake Manifold Runner Control Stuck Closed Bank 1Learn More
Diesel Particulate Filter Restriction - Soot AccumulationLearn More
Secondary Air Injection System MalfunctionLearn 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 Anti-Lock Brake System (ABS) Control ModuleLearn 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 R-Class
The R-Class first made its debut in 2005 as a large luxury MPV. The model only saw a single generation since then, with updates coming in 2007 and 2011. It was later retired in 2017 due to declining sales figures.
Interestingly, Mercedes released an incredibly limited performance version called the R 63 AMG 4Matic. Paired with a 6.3 liter V8, this represented one of the most powerful production minivans ever. Obviously, this was a very unique combination, so much so that only 200 units were ever sold globally, making it one of the rarest Mercedes-Benz models ever.
Owing to some shared mechanical systems, the R-Class is subject to some fairly common fault codes that a number of SUVs in the Mercedes lineup are known to face.
The most common of these is P2009, which indicates an issue with the intake manifold runner.
This problem can be notoriously difficult to fix. However, there is a lot of information available on fixing the problem because so many models have suffered from it. Owners have typically found replacing the faulty actuator is a common solution.
Fault code P0128 is another fairly common issue for the model. This code is logged when the coolant is not reaching the desired temperature.
Among the most common fixes for this issue includes replacing a faulty thermostat and checking the coolant system for the correct fluid levels.
Fault code P0455 is another fairly common problem for these models. This code represents a leak in the EVAP system.
One of the most common causes is a loose gas cap, but there can also be actual leaks in the EVAP hoses or components.