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.
Réparer le code défaut de votre auto, c’est potentiellement simple à faire avec nos revues et méthodes techniques
| Code | Libellé |
|---|---|
| MR 4232 | The measurement value of the differential pressure sensor upstream of the diesel particulate filter is implausible. |
| MR 4233 | The measurement value of the differential pressure sensor downstream of the diesel particulate filter is implausible. |
| MR 4234 | Excessive nitrogen oxide emission due to unknown cause (threshold 2 exceeded) |
| MR 4235 | Excessive nitrogen oxide emission due to low quality AdBlue |
| MR 4236 | Excessive nitrogen oxide emission due to insufficient AdBlue dosage |
| MR 4237 | The measurement value of the NOx sensor is implausible. |
| MR 4238 | The temperature in the diesel particulate filter is too low. |
| MR 4244 | Fault NOx sensor |
| MR 4245 | Component 'NOx sensor' is defective. |
| MR 4246 | Excessive untreated nitrogen oxide emission |
| MR 4247 | Component 'Catalytic converter' is defective. |
| MR 4248 | Poor AdBlue quality or insufficient AdBlue dosage |
| MR 4249 | Poor AdBlue quality, insufficient AdBlue dosage or defective SCR catalytic converter |
| MR 4250 | Water pump has Short circuit to ground. |
| MR 4251 | Water pump has Open circuit. |
| MR 4252 | Water pump has Short circuit to positive. |
| MR 4261 | System error at component Constant throttle |
| MR 4277 | Engine start and stop button, FAULTY |
| MR 4415 | The differential pressure sensor upstream of the diesel particulate filter has Short circuit to positive, Open circuit. |
| MR 4416 | The differential pressure sensor upstream of the diesel particulate filter has Short circuit to ground. |
| MR 4804 | Fault of vehicle speed output |
| MR 4805 | A unit pump of bank 1 has Short circuit to positive. |
| MR 4806 | The return of the unit pumps of bank 1 has Short circuit to ground. |
| MR 4905 | A unit pump of bank 2 has Short circuit to positive. |
| MR 4906 | The return of the unit pumps of bank 2 has Short circuit to ground. |
| MR 5026 | Unit pump for cylinder valve no impact |
| MR 5026 | Unit pump for cylindervalve no impact |
| MR 5027 | Unit pump for cylinder Actuation fault |
| MR 5027 | Unit pump for cylinderActuation fault |
| MR 5028 | Unit pump for cylindershort circuit |
| MR 5028 | Unit pump for cylinder short circuit |
| MR 5126 | Unit pump for cylindervalve no impact |
| MR 5126 | Unit pump for cylinder valve no impact |
| MR 5127 | Unit pump for cylinder Actuation fault |
| MR 5127 | Unit pump for cylinderActuation fault |
| MR 5128 | Unit pump for cylindershort circuit |
| MR 5128 | Unit pump for cylinder short circuit |
| MR 5226 | Unit pump for cylinder valve no impact |
| MR 5226 | Unit pump for cylindervalve no impact |
| MR 5227 | Unit pump for cylinder Actuation fault |
| MR 5227 | Unit pump for cylinderActuation fault |
| MR 5228 | Unit pump for cylindershort circuit |
| MR 5228 | Unit pump for cylinder short circuit |
| MR 5326 | Unit pump for cylinder valve no impact |
| MR 5327 | Unit pump for cylinder Actuation fault |
| MR 5328 | Unit pump for cylinder short circuit |
| MR 5426 | Unit pump for cylinder valve no impact |
| MR 5427 | Unit pump for cylinder Actuation fault |
| MR 5428 | Unit pump for cylinder short circuit |
| MR 5526 | Unit pump for cylinder valve no impact |
| MR 5526 | Unit pump for cylinder, valve no impact |
| MR 5527 | Unit pump for cylinder Actuation fault |
| MR 5527 | Unit pump for cylinder, actuation fault |
| MR 5528 | Unit pump for cylinder, short circuit |
| MR 5528 | Unit pump for cylinder short circuit |
| MR 5626 | Unit pump for cylindervalve no impact |
| MR 5626 | Unit pump for cylinder valve no impact |
| MR 5627 | Unit pump for cylinder Actuation fault |
| MR 5627 | Unit pump for cylinderActuation fault |
| MR 5628 | Unit pump for cylindershort circuit |
| MR 5628 | Unit pump for cylinder short circuit |
| MR 5726 | Unit pump for cylinder valve no impact |
| MR 5727 | Unit pump for cylinder Actuation fault |
| MR 5728 | Unit pump for cylinder short circuit |
| MR 5806 | AdBlue line heater has Short circuit to ground. |
| MR 5807 | AdBlue line heater has Short circuit to positive. |
| MR 5809 | AdBlue line heater has Open circuit. |
| MR 5869 | AdBlue line heater is defective. |
| MR 5906 | Solenoid valve of AdBlue tank heater has Short circuit to ground. |
| MR 5907 | Solenoid valve of AdBlue tank heater has Short circuit to positive. |
| MR 5909 | Solenoid valve of AdBlue tank heater has Open circuit. |
| MR 5969 | Heat valve of AdBlue tank is defective. |
| MR 6015 | Fill level sensor of AdBlue tank has Short circuit to positive, Open circuit. |
| MR 6016 | Fill level sensor of AdBlue tank has Short circuit to ground. |
| MR 6020 | Lead to WR proportioning valve of front axle has Open circuit. |
| MR 6021 | Lead to WR proportioning valve of front axle has Short circuit to ground. |
| MR 6022 | Lead to WR proportioning valve of front axle has Short circuit to positive. |
| MR 6023 | Specified current at WR proportioning valve of front axle is not reached. |
| MR 6029 | Fill level of AdBlue tank is too low. |
| MR 6115 | Temperature sensor of AdBlue tanks has Short circuit to positive, Open circuit. |
| MR 6116 | Temperature sensor of AdBlue tanks has Short circuit to ground. |
| MR 6120 | Lead to WR proportioning valve of 1 Rear axle has Open circuit. |
| MR 6121 | Lead to WR proportioning valve of 1 Rear axle has Short circuit to ground. |
| MR 6122 | Lead to WR proportioning valve of 1 Rear axle has Short circuit to positive. |
| MR 6123 | Specified current at WR proportioning valve of 1 Rear axle is not reached. |
| MR 6169 | Sensor 'Fill level/temperature of AdBlue tank' is defective. |
| MR 6220 | Lead to WR proportioning valve of 2 Rear axle has Open circuit. |
| MR 6221 | Lead to WR proportioning valve of 2 Rear axle has Short circuit to ground. |
| MR 6222 | Lead to WR proportioning valve of 2 Rear axle has Short circuit to positive. |
| MR 6223 | Specified current at WR proportioning valve of 2 Rear axle is not reached. |
| MR 6327 | Actuation of OBD lamp is faulty. |
| MR 6506 | The diagnostic cable of the oil separator has Short circuit to ground. |
| MR 6564 | Oil separator faulty |
| MR 6564 | The diagnostic cable of the oil separator has Open circuit or Short circuit to positive. |
| MR 6678 | The EGR valve is faulty. |
| MR 6720 | AdBlue pressure is too high. |
| MR 6721 | AdBlue pressure is too low. |
| MR 6770 | AdBlue pressure drop is too low during run-on. |
| MR 6777 | Power consumption of AdBlue pump is too high. |
| MR 6820 | SCR air pressure is too high. |
DEFINISSEZ VOTRE MARQUE POUR ACCEDER A VOS CODES DEFAUTS
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Revue technique RTA
Revue Technique Automobile
La revue technique de référence depuis 1946. La RTA est une revue papier pour tous publics, qui vous permet d'effectuer les petites et les grosses réparations
Voir le descriptif
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Entretien courant MTA
Méthode Technique Automobile
La MTA est issue de nos outils destinés aux pros de l'auto. Ces méthodes en ligne permettent d'effectuer les opérations de maintenances de votre auto (filtres, courroies, etc.)
Voir le descriptif
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Toutes réparations MTAx
Méthode Technique Automobile Expert
La MTA expert est un outil en ligne destiné aux experts en mécanique et en carrosserie, pour effectuer tous types de réparations sur une voiture.
Voir le descriptif