Que signifie votre code Code Défaut MERCEDES ?

Grace au système OBD, les Mercedes fabriqués après 1996 sont normalement équipés d'une prise diagnostique OBD.
Si l'ordinateur de la voiture rencontre un problème,un code d'erreur ou un code de diagnostic (DTC) sera stocké dans la mémoire de l'ECU de la voiture.
Avec un lecteur OBD branché sur le port OBD (On-Board Diagnostics) de la voiture, vous pouvez lire la liste des codes stockés, et donc découvrir quel est le problème.

Les codes suivent une formule permettant de savoir généralement quel est le problème avant même de regarder le tableau ci-dessous.
Nous vous présentons ci-dessus une liste très complète des différents codes défauts possibles.
Si le code défaut de votre auto s'affiche au tableau de bord, vous n'aurez peut-être même pas besoin d'un lecteur OBD . il sera dans la liste .
Réparer le code défaut de votre auto, c'est potentiellement simple à faire avec vos revues et méthodes techniques.

Revenir aux autres catégories de codes défauts MERCEDES



Réparer le code défaut de votre auto, c’est potentiellement simple à faire avec nos revues et méthodes techniques

Code Libellé
NGT 961807 A position deviation was detected at component 'Y647 (EGR wastegate actuator)'.
NGT 961809 CAN communication with component 'Y647 (EGR wastegate actuator)' is interrupted.
NGT 96180C The learned value of component 'Y647 (EGR wastegate actuator)' is implausible.
NGT 961811 A position deviation was detected at component 'Y647 (EGR wastegate actuator)'.
NGT 970C02 Component 'B624a (Oxygen sensor upstream of catalytic converter)' reacts too slowly.
NGT 970C03 The heater of component 'B624a (Oxygen sensor upstream of catalytic converter)' has a short circuit to positive.
NGT 970C04 The heater of the component 'B624a (Oxygen sensor upstream of catalytic converter)' has a short circuit to ground.
NGT 971610 Component 'M602 (Charge air throttle valve)' has overtemperature.
NGT 981C00 The signal of components 'B627 (Knock sensor 1)' and (or) 'B628 (Knock sensor 2)' is implausible.
NGT 981C01 The signal of components 'B627 (Knock sensor 1)' and (or) 'B628 (Knock sensor 2)' is implausible.
NGT 981C09 No signal from component 'B627 (Knock sensor 1)' and (or) component 'B628 (Knock sensor 2)'
NGT 981C1F The signal of components 'B627 (Knock sensor 1)' and (or) 'B628 (Knock sensor 2)' is implausible.
NGT 9B0C03 The signal voltage of component 'B646 (Oxygen sensor downstream of primary catalytic converter)' is implausible.
NGT 9B0C04 Component 'B646 (Oxygen sensor downstream of primary catalytic converter)' or its electrical line has a short circuit to ground.
NGT 9B0C05 The component 'B646 (Oxygen sensor downstream of primary catalytic converter)' or its electrical line has an open circuit.
NGT 9B0C0A Component 'B646 (Oxygen sensor downstream of primary catalytic converter)' reacts too slowly.
NGT 9B0C15 The signal voltage of component 'B646 (Oxygen sensor downstream of primary catalytic converter)' is implausible.
NGT 9B0C1F The component 'B646 (Oxygen sensor downstream of primary catalytic converter)' or its electrical line has an open circuit.
NGT 9B1600 Component 'Y647 (EGR wastegate actuator)' has overtemperature.
NGT 9B1610 Component 'Y647 (EGR wastegate actuator)' has overtemperature.
NGT 9C010F Component 'Y621b (Exhaust gas recirculation controller)' has overtemperature.
NGT 9E0002 The status 'Circuit 15' is implausible.
NGT A10C02 The heat output of component 'B646 (Oxygen sensor downstream of primary catalytic converter)' is too low.
NGT A10C03 Component 'B646 (Oxygen sensor downstream of primary catalytic converter)' has a short circuit to positive.
NGT A10C04 Component 'B646 (Oxygen sensor downstream of primary catalytic converter)' has a short circuit to ground.
NGT A10C05 Component 'B646 (Oxygen sensor downstream of primary catalytic converter)' has an open circuit.
NGT A10C07 The heat output of component 'B646 (Oxygen sensor downstream of primary catalytic converter)' is too low.
NGT A50203 The electrical line A of the starter relay has a short circuit to positive.
NGT A50205 The starter relay has an open circuit.
NGT A5020B Component 'M1 (Starter)' is faulty.
NGT A5021F The starter is not engaging.
NGT AB001F The ambient temperature is implausible.
NGT AF0000 The engine oil temperature is too high.
NGT AF0003 The signal voltage of component 'B605a (Engine oil fill level sensor)' is too high.
NGT AF0004 The signal voltage of component 'B605a (Engine oil fill level sensor)' is too low.
NGT AF000E The signal of component 'B605a (Engine oil fill level sensor)' is implausible.
NGT AF000F The engine oil temperature is too high.
NGT AF001F The signal of component 'B605a (Engine oil fill level sensor)' is implausible.
NGT B50D03 The power supply (5V) of sensor group 1 has a short circuit to positive.
NGT B50D04 The power supply (5V) of sensor group 1 has a short circuit to ground.
NGT B60D03 The power supply (5V) of sensor group 2 has a short circuit to positive.
NGT B60D04 The power supply (5V) of sensor group 2 has a short circuit to ground.
NGT BE0000 The engine speed is too high.
NGT D1030D The parameterization of the fan in control unit 'A4d (Engine management (NGT) control unit)' is invalid.
NGT D40202 Component 'B624a (Oxygen sensor upstream of catalytic converter)' is not correctly installed.
NGT D40203 The heater of component 'B624a (Oxygen sensor upstream of catalytic converter)' has a short circuit to positive.
NGT D40204 The heater of the component 'B624a (Oxygen sensor upstream of catalytic converter)' has a short circuit to ground.
NGT D40205 The heater of component 'B624a (Oxygen sensor upstream of catalytic converter)' has an open circuit.
NGT D4020B The correction value for the offset value of the component 'B624a (Oxygen sensor upstream of catalytic converter)' is too high.
NGT D4020E Component 'B624a (Oxygen sensor upstream of catalytic converter)' or its electrical line is defective.
NGT D4021F Component 'B624a (Oxygen sensor upstream of catalytic converter)' or its electrical line is defective.
NGT D41509 The CAN bus (Engine CAN bus) has a malfunction.
NGT D4F0E4 The signal voltage of component 'B646 (Oxygen sensor downstream of primary catalytic converter)' is implausible.
NGT D50D08 The diagnosis of the ignition coils has detected several electrical faults.
NGT D5F0EF The change in the signal voltage of the component 'B653 (Charge air pressure sensor in charge air distributor)' is implausible.
NGT D5F0F0 The change in the signal voltage of the component 'B653 (Charge air pressure sensor in charge air distributor)' is implausible.
NGT D7F0E5 Component 'Y106.5a (Gas injection valve 5)' has a short circuit.
NGT D7F0EA Component 'Y106.2a (Gas injection valve 2)' has a short circuit.
NGT D7F0EF Component 'Y106.4a (Gas injection valve 4)' has a short circuit.
NGT D8F0E4 Component 'Y106.6a (Gas injection valve 6)' has a short circuit.
NGT D8F0E5 Component 'Y106.1a (Gas injection valve 1)' has a short circuit.
NGT D8F0E9 Component 'Y106.3a (Gas injection valve 3)' has a short circuit.
NGT D8F0EB An internal control unit fault was detected.
NGT D8F0EE An internal control unit fault was detected.
NGT DB0202 Implausible signal from knock sensor 1
NGT DB0202 The signal of component 'B627 (Knock sensor 1)' is implausible.
NGT DB0203 The signal voltage of component 'B627 (Knock sensor 1)' is too high.
NGT DC0207 The maximum number of output-controlled operating cycles of the gas injection valves has been reached.
NGT E61A03 Component 'Y89 (Gas pressure regulator pressure transducer)' has a short circuit to positive.
NGT E61A04 Component 'Y89 (Gas pressure regulator pressure transducer)' has a short circuit to ground.
NGT E61A05 Component 'Y89 (Gas pressure regulator pressure transducer)' has an open circuit.
NGT EA1A02 The signal of component 'Y647 (EGR wastegate actuator)' is invalid.
NGT EA1A04 The power supply for component 'Y647 (EGR wastegate actuator)' is not OK.
NGT EB0D00 Component 'B653 (Charge air pressure sensor in charge air distributor)' has an open circuit or short circuit to positive.
NGT EB0D03 The signal voltage of component 'B653 (Charge air pressure sensor in charge air distributor)' is too high.
NGT EB0D04 The signal voltage of component 'B653 (Charge air pressure sensor in charge air distributor)' is too low.
NGT EB0D12 The boost pressure is too low.
NGT ED0A0B Diagnosis of gas injection valves of group 1 in progress ...
NGT EE0A0B Diagnosis of gas injection valves of group 2 in progress ...
NGT F00B02 The operating temperature of component 'B624a (Oxygen sensor upstream of catalytic converter)' was not reached.
NGT F00B04 The temperature of the component 'B624a (Oxygen sensor upstream of catalytic converter)' is too high or too low.
NGT F00B05 The component 'B624a (Oxygen sensor upstream of catalytic converter)' or its electrical line has an open circuit.
NGT F00B0E The oxygen concentration in deceleration mode is implausible.
NGT F40403 Component 'T1.1a (Cylinder 1 ignition coil)' has a short circuit to positive.
NGT F40404 Component 'T1.1a (Cylinder 1 ignition coil)' has a short circuit to ground.
NGT F40405 Component 'T1.1a (Cylinder 1 ignition coil)' has an open circuit.
NGT F50403 Component 'T1.2a (Cylinder 2 ignition coil)' has a short circuit to positive.
NGT F50404 Component 'T1.2a (Cylinder 2 ignition coil)' has a short circuit to ground.
NGT F50405 Component 'T1.2a (Cylinder 2 ignition coil)' has an open circuit.
NGT F60403 Component 'T1.3a (Cylinder 3 ignition coil)' has a short circuit to positive.
NGT F60404 Component 'T1.3a (Cylinder 3 ignition coil)' has a short circuit to ground.
NGT F60405 Component 'T1.3a (Cylinder 3 ignition coil)' has an open circuit.
NGT F70403 Component 'T1.4a (Cylinder 4 ignition coil)' has a short circuit to positive.
NGT F70404 Component 'T1.4a (Cylinder 4 ignition coil)' has a short circuit to ground.
NGT F70405 Component 'T1.4a (Cylinder 4 ignition coil)' has an open circuit.
NGT F70A03 Component 'K5 A32 (Gas cylinder shutoff valve shutoff relay)' or its electrical line has a short circuit to positive.
NGT F70A04 Component 'K5 A32 (Gas cylinder shutoff valve shutoff relay)' or its electrical line has a short circuit to ground.
NGT F70A05 The component 'K5 A32 (Gas cylinder shutoff valve shutoff relay)' or its electrical line has an open circuit.
NGT F80403 Component 'T1.5a (Cylinder 5 ignition coil)' has a short circuit to positive.
NGT F80404 Component 'T1.5a (Cylinder 5 ignition coil)' has a short circuit to ground.
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