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Mercedes Benz EQA Fault Codes


You can find common Mercedes Benz EQA 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 EQA 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 EQA has any recall notices on our sister site AutoRecalls.co, sorted by model year.

View Mercedes Benz EQA Recalls »
Recall Notice Icon

Error Icon P2006

Intake Manifold Runner Control Stuck Closed Bank 1

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Error Icon P2463

Diesel Particulate Filter Restriction - Soot Accumulation

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Error Icon P0410

Secondary Air Injection System Malfunction

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Error Icon P0730

Incorrect Gear Ratio

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Error Icon C1140

Hydraulic Base Brake Failure

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Error Icon C1102

ABS Acceleration Switch Circuit Failure

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Error Icon C1210

ABS Outlet Valve Coil RF Circuit Failure

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Error Icon C1101

ABS Hydraulic Valve Circuit Failure

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Error Icon C1170

PRNDL Switch Circuit Failure

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Severity Icon 5/10

Error Icon P0705

Transmission Range Sensor Circuit Malfunction (PRNDL Input)

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Severity Icon 9/10

Error Icon P0299

Turbo / Super Charger Underboost

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Severity Icon 7/10

Error Icon U0155

Lost Communication With Instrument Panel Cluster (IPC) Control Module

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Error Icon U0121

Lost Communication With Anti-Lock Brake System (ABS) Control Module

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Severity Icon 9/10

Error Icon U0073

Control Module Communication Bus "A" Off

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Severity Icon 8/10

Error Icon U0106

Lost Communication With Glow Plug Control Module

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Error Icon U0101

Lost Communication with TCM

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Error Icon P1570

Contr. Module Locked

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Error Icon P1519

Intake Manifold Runner Control (Stuck Closed)

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Error Icon P1831

Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Ground

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Error Icon P1190

Calibration Resistor Out Of Range

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Error Icon P1886

4X4 Initialization Failure

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Error Icon P1650

PSP Switch Out of Self Test Range

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Error Icon P1858

Transmission Transfer Case Contact Plate 'D' Circuit Failure

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Error Icon P1840

Transmission Transfer Case Shift Motor Short Circuit To Battery

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Error Icon P1868

Transmission Automatic 4-Wheel Drive Indicator (Lamp) Circuit Failure

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Error Icon P1872

Transmission Mechanical 4-Wheel Drive Axle Lock Lamp Circuit Failure

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Error Icon P1405

DPFE Sensor Upstream Hose Off Or Plugged

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Error Icon P1408

EGR Flow Out Of Self Test Range

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Error Icon P1105

Dual Alternator Upper Fault

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Error Icon P1189

Pump Speed Signal Fault

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Error Icon P1636

Inductive Signature Chip Communication Error

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Error Icon P1400

DPFE Circuit Low Input

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Error Icon P1453

Fuel Tank Pressure Relief Valve Malfunction

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Error Icon P1482

SCP

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Error Icon P1481

GLOW PLUG FAILURE

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Error Icon P1222

Traction Control Output Circuit Malfunction

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Error Icon P1354

Ignition Coil C Primary Circuit Malfunction

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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Severity Icon 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Severity Icon 8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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Severity Icon 8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Severity Icon 6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Mercedes Benz EQA Image

About the EQA

Closely Related to the GLA, the EQA is a subcompact luxury crossover SUV designed and marketed by the German car manufacturer Mercedes-Benz.

ICE-powered, the EQA offers two battery variants, a 66.5 kWh lithium-ion and a 70.5 kWh lithium-ion both twinned with a single-speed fixed ratio transmission.

Following a full charge, each powertrain has differing ranges, capable of traveling 265 miles up to 340 miles.

Initially only available for the Chinese market, the EQA was originally named the EQA 250 with electric motors powering the front wheels and an output of 190 BHP.

In March 2022, Mercedes announced a car with a larger battery and therefore a longer range estimating a total journey on one charge of up to 540 km.

The platform on which the EQA was built was fairly new for the time; Mercedes began making use of this platform in 2013 with cars like the S-Class, Maybach S-Class, C-Class and the GLC-Class.

Buyers could add a number of packages to their new EQAs, for example, the extra Driving Assistance Package came with active distance assist, active blind spot assist with exit warning function, steering assist, brake assist, steering assist, lane keeping assist and pedestrian warning function.

Adding a trailer coupling with ESP trailer stabilization allowed for the more active drivers to transport caravans and cycle racks to the vehicle; then folds behind the rear bumper when not in use.

Some usual error codes found with the EQA are:

  • P2006 – There is a stick-closed intake runner flap which is picked up by the control circuit.
  • P0455 – An evaporative emissions control system error was detected by the engine computer.
  • P0128 – Coolant temperature is performing under the regulated temperature of the thermostat.
  • P0462 – Low input from the fuel sensor circuit, this can be caused by a number of reasons and a mechanic should be consulted.
  • P0410 – A generic code showing that the engine O2 sensor couldn’t detect an increase in the oxygen level in the exhaust system.