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
MR 6821 SCR air pressure is too low.
MR 6883 The air supply of the SCR compressed air system is faulty.
MR 7006 Proportioning valve 1 has Short circuit to ground.
MR 7006 Solenoid valve turbocharger adjustment (Short circuit to ground)
MR 7006 Solenoid valveturbocharger adjustment (Short circuit to ground)
MR 7007 Proportioning valve 1 has Short circuit to positive.
MR 7009 Proportioning valve 1 has Open circuit.
MR 7009 Solenoid valve turbocharger adjustment (Open circuit)
MR 7009 Solenoid valveturbocharger adjustment (Open circuit)
MR 7106 Proportioning valve 3 has Short circuit to ground.
MR 7106 Solenoid valve Y5 'Engine radiator fan' has Short circuit to ground.
MR 7106 Solenoid valve Fan stage 1 has Short circuit to ground.
MR 7107 Proportioning valve 3 has Short circuit to positive.
MR 7107 Solenoid valve Y5 'Engine radiator fan' has Short circuit to positive.
MR 7109 Proportioning valve 3 has Open circuit.
MR 7109 Solenoid valve Y5 'Engine radiator fan' has Open circuit.
MR 7109 Solenoid valve Fan stage 1 has Open circuit.
MR 7112 Solenoid valve Y5 'Engine radiator fan' has no fan speed.
MR 7206 Proportioning valve 4 has Open circuit.
MR 7206 Proportioning valve 4 has Short circuit to ground.
MR 7206 Solenoid valve Fan stage 2 has Short circuit to ground.
MR 7207 Proportioning valve 4 has Short circuit to positive.
MR 7209 Proportioning valve 4 has Open circuit.
MR 7209 Solenoid valve Fan stage 2 has Open circuit.
MR 7305 Proportioning valve 2 has Short circuit to positive.
MR 7305 Proportioning valve 2 (Y49) has Short circuit to positive.(Constant throttle)
MR 7306 Proportioning valve 2 (Y49) has Short circuit to ground.(Constant throttle)
MR 7306 Proportioning valve 2 has Short circuit to ground.
MR 7307 Proportioning valve 2 (Y49) has Short circuit to positive.(Constant throttle)
MR 7307 Proportioning valve 2 has Short circuit to positive.
MR 7309 Proportioning valve 2 has Open circuit.
MR 7309 Proportioning valve 2 (Y49) has Open circuit.(Constant throttle)
MR 7317 Proportioning valve 2 has Open circuit or Short circuit to ground.
MR 7317 Proportioning valve 2 (Y49)Current implausible
MR 7405 Proportioning valve 5 has Short circuit to positive.
MR 7408 Proportioning valve 5 has Short circuit to ground.
MR 7542 Battery voltage too high
MR 7543 Battery voltage too low
MR 7606 Proportioning valve 6 has Short circuit to ground.
MR 7607 Proportioning valve 6 has Short circuit to positive.
MR 7609 Proportioning valve 6 has Open circuit.
MR 7705 The proportioning valve bank 1 has Short circuit to positive.
MR 7708 The proportioning valve bank 1 has Short circuit to ground.
MR 7805 The proportioning valve bank 2 has Short circuit to positive.
MR 7808 The proportioning valve bank 2 has Short circuit to ground.
MR 7905 Proportioning valve bank 'SCR frame module' has Short circuit to positive.
MR 7908 Proportioning valve bank 'SCR frame module' has Short circuit to ground.
MR 8000 Driving without tachograph disk
MR 8005 Starter relay terminal 50 (Short circuit to positive)
MR 8008 Starter relay terminal 50 (Short circuit to ground)
MR 8009 Starter relay terminal 50 (Open circuit)
MR 8033 Starter relay faulty, sticking
MR 8039 Starter actuation (output stage) faulty
MR 8086 Starter does not engage
MR 8106 SCR compressed air shutoff valve has Short circuit to ground.
MR 8107 SCR compressed air shutoff valve has Short circuit to positive.
MR 8109 SCR compressed air shutoff valve has Open circuit.
MR 8206 AdBlue metering valve has Short circuit to ground.
MR 8207 AdBlue metering valve has Short circuit to positive.
MR 8209 AdBlue metering valve has Open circuit.
MR 8315 AdBlue temperature sensor has Short circuit to positive, Open circuit.
MR 8316 AdBlue temperature sensor has Short circuit to ground.
MR 8415 AdBlue pressure sensor has Short circuit to positive, Open circuit.
MR 8416 AdBlue pressure sensor has Short circuit to ground.
MR 8417 Measured value of AdBlue pressure sensor is implausible.
MR 8515 SCR compressed air sensor has Short circuit to positive, Open circuit.
MR 8516 SCR compressed air sensor has Short circuit to ground.
MR 8517 Measured value of SCR compressed air sensor is implausible.
MR 8690 Current AdBlue consumption is too high.
MR 8691 Current AdBlue consumption is too low.
MR 8790 Average AdBlue consumption is too high.
MR 8791 Average AdBlue consumption is too low.
MR 8896 AdBlue pressure is implausible.
MR 8906 AdBlue metering valve on SCR frame module has Short circuit to ground.
MR 8906 SCR compressed air shutoff valve has Short circuit to ground.
MR 8907 SCR compressed air shutoff valve has Short circuit to positive.
MR 8907 AdBlue metering valve on SCR frame module has Short circuit to positive.
MR 8909 AdBlue metering valve on SCR frame module has Open circuit.
MR 8909 SCR compressed air shutoff valve has Open circuit.
MR 9044 Unit pump cylinder smooth idle control within limit
MR 9045 Unit pump cylindersingle cylinder adjustment within limit
MR 9045 Unit pump cylinder single cylinder adjustment within limit
MR 9144 Unit pump cylinder smooth idle control within limit
MR 9145 Unit pump cylinder single cylinder adjustment within limit
MR 9145 Unit pump cylindersingle cylinder adjustment within limit
MR 9244 Unit pump cylinder smooth idle control within limit
MR 9245 Unit pump cylinder single cylinder adjustment within limit
MR 9245 Unit pump cylindersingle cylinder adjustment within limit
MR 9344 Unit pump cylinder smooth idle control within limit
MR 9345 Unit pump cylinder single cylinder adjustment within limit
MR 9444 Unit pump cylinder smooth idle control within limit
MR 9445 Unit pump cylinder single cylinder adjustment within limit
MR 9544 Unit pump cylinder smooth idle control within limit
MR 9545 Unit pump cylinder single cylinder adjustment within limit
MR 9644 Unit pump cylinder smooth idle control within limit
MR 9645 Unit pump cylinder single cylinder adjustment within limit
MR 9700 Fault in vehicle speed registration
MR 9744 Unit pump cylinder smooth idle control within limit
MR 9745 Unit pump cylinder single cylinder adjustment within limit
MR 9961 Immobilizer guard function active, control unit MR engine control blocked
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