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 1016 Oil temperature sensor has gone below measuring range (Short circuit to ground).
MR 1016 Oil pressure and oil temperature' combination sensor: temperature sensor, below measured range (Short circuit to ground)
MR 1115 Fuel temperature sensor, above measuring range ( Short circuit to positive Open circuit)
MR 1116 Fuel temperature sensor, below measuring range ( Short circuit to ground)
MR 1215 Charge pressure and charge air temperature' combination sensor: temperature sensor, above measured range (Short circuit to positive Open circuit)
MR 1216 Charge pressure and charge air temperature' combination sensor: temperature sensor, below measured range (Short circuit to ground)
MR 1315 Atmospheric pressure sensor, above measuring range ( Short circuit to positive Open circuit)
MR 1316 Atmospheric pressure sensor, below measuring range ( Short circuit to ground)
MR 1400 Calibration of the tachograph is faulty.
MR 1415 Charge pressure and charge air temperature' combination sensor: pressure sensor, above measured range (Short circuit to positive Open circuit)
MR 1416 Charge pressure and charge air temperature' combination sensor: pressure sensor, below measured range (Short circuit to ground)
MR 1417 Charge pressure and charge air temperature' combination sensor: pressure sensor, measured value implausible
MR 1515 Coolant temperature sensor, above measuring range ( Short circuit to positive Open circuit)
MR 1516 Coolant temperature sensor, below measuring range ( Short circuit to ground)
MR 1615 Oil pressure sensor, above measuring range ( Short circuit to positive Open circuit)
MR 1615 Oil pressure and oil temperature' combination sensor: pressure sensor, above measured range (Short circuit to positive Open circuit)
MR 1616 Oil pressure sensor, measuring range not reached (Short circuit to ground)
MR 1616 Oil pressure and oil temperature' combination sensor: pressure sensor, below measured range (Short circuit to ground)
MR 1617 Oil pressure sensor, measured value implausible
MR 1617 Oil pressure and oil temperature' combination sensor: pressure sensor, measured value implausible
MR 1704 CAN link to INS Instrument faulty
MR 1820 Boost pressure too high
MR 1822 Boost air temperature exceeded
MR 1873 Turbocharger-Vehicle speed has synchronization fault.
MR 1875 Charge pressure deviation is too large.
MR 1917 Measured value of fuel pressure sensor is implausible.
MR 2017 Measured value of oil pressure sensor is implausible.
MR 2020 Oil pressure is too low.
MR 2021 Oil pressure is too low.
MR 2026 The engine oil level is too high or too low.
MR 2122 Coolant temperature is too high.
MR 2219 Terminal 15 of control unit MR or FR has Open circuit.
MR 2415 The differential fuel pressure sensor has Open circuit.
MR 2416 The differential fuel pressure sensor has Short circuit to positive, Short circuit to ground.
MR 2509 Oil level sensor Open circuit
MR 2515 Oil level sensor Short circuit to positive, measuring range exceeded
MR 2516 Oil level sensor Short circuit to ground, measuring range not reached
MR 2517 Oil level sensor , readout implausible
MR 2612 The turbocharger rpm sensor has Open circuit, Short circuit to positive, Short circuit to ground.
MR 2615 The turbocharger rpm sensor has Short circuit to positive, Open circuit.
MR 2616 The turbocharger rpm sensor has Short circuit to ground.
MR 2712 The rpm signal from the alternator is missing (timeout).
MR 2712 The turbocharger rpm sensor has Open circuit, Short circuit to positive, Short circuit to ground.(Turbocharger2)
MR 2804 The NOx sensor has a communication fault.
MR 2815 The NOx sensor has Short circuit to positive, Open circuit.
MR 2816 The NOx sensor has Short circuit to ground.
MR 2971 Excessive nitrogen oxide emission (threshold 1 exceeded)
MR 2972 Excessive nitrogen oxide emission (threshold 2 exceeded)
MR 3015 Fuel pressure sensor, above measuring range ( Short circuit to positive Open circuit)
MR 3016 Fuel pressure sensor, below measuring range ( Short circuit to ground)
MR 3115 Charge air temperature sensor 2 has Open circuit.
MR 3116 Charge air temperature sensor 2 has Short circuit.
MR 3215 Exhaust gas recirculation temperature sensor has Open circuit.
MR 3216 Exhaust gas recirculation temperature sensor has Short circuit.
MR 3320 Solenoid valve 43527 3rd axle lower Open circuit
MR 3321 Solenoid valve 43527 3rd axle lower Short circuit to ground
MR 3322 Solenoid valve 43527 3rd axle lower Short circuit to positive
MR 3332 Exhaust gas recirculation temperature is outside the specified value range.
MR 3408 Fault of vehicle speed sensor
MR 3415 Air humidity sensor has Short circuit to positive, Open circuit.
MR 3416 Air humidity sensor has Short circuit to ground.
MR 3420 Solenoid valve 43527 3rd axle raise Open circuit
MR 3504 Fault of vehicle speed sensor
MR 3604 CAN message 'Air temperature' is missing.
MR 3617 Measurement value from ambient air temperature sensor is implausible.
MR 3706 The SCR compressed air switching valve has Short circuit to ground.
MR 3707 The SCR compressed air switching valve has Short circuit to positive.
MR 3709 The SCR compressed air switching valve has Open circuit.
MR 3906 AdBlue pump has Short circuit to ground.
MR 3907 AdBlue pump has Short circuit to positive.
MR 3909 AdBlue pump has Open circuit.
MR 4039 Starter actuation (output stage) faulty
MR 4049 Invalid parameterization for proportioning valves
MR 4149 Engine brake is incorrectly parameterized.
MR 4200 Proportioning valve 5 has Short circuit to positive.
MR 4201 Proportioning valve 5 has Short circuit to ground.
MR 4202 Proportioning valve 7 has Short circuit to ground.
MR 4203 Proportioning valve 7 has Open circuit.
MR 4204 Proportioning valve 7 has Short circuit to positive.
MR 4205 The position sensor of the throttle valve has Short circuit to positive, Open circuit.
MR 4206 The position sensor of the throttle valve has Short circuit to ground.
MR 4207 The temperature sensor upstream of the diesel oxidation catalytic converter has Short circuit to positive, Open circuit.
MR 4208 The temperature sensor upstream of the diesel oxidation catalytic converter has Short circuit to ground.
MR 4209 The temperature sensor downstream of the diesel oxidation catalytic converter has Short circuit to positive, Open circuit.
MR 4210 The temperature sensor downstream of the diesel oxidation catalytic converter has Short circuit to ground.
MR 4211 The differential pressure sensor upstream of the diesel particulate filter has Short circuit to positive, Open circuit.
MR 4212 The differential pressure sensor upstream of the diesel particulate filter has Short circuit to ground.
MR 4213 The differential pressure sensor downstream of the diesel particulate filter has Short circuit to positive, Open circuit.
MR 4214 The differential pressure sensor downstream of the diesel particulate filter has Short circuit to ground.
MR 4215 The pressure differential in the diesel particulate filter is too high.
MR 4216 The pressure differential in the diesel particulate filter is too low.
MR 4217 The control deviation of the throttle valve is too high.
MR 4218 The throttle valve reference cycle failed.
MR 4219 The diffusor in the AdBlue metering unit is clogged.
MR 4225 The proportioning valve bank 1 has Short circuit to positive.
MR 4226 The proportioning valve bank 1 has Short circuit to ground.
MR 4229 The measured value of the SCRT temperature sensors (pair A) is implausible.
MR 4229 The measurement value(s) from the SCRT temperature sensors (pair A) is/are implausible.
MR 4230 The measured value of the SCRT temperature sensors (pair B) is implausible.
MR 4230 The measurement value(s) from the SCRT temperature sensors (pair B) is/are implausible.
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