| P0000 | No fault codes in the system memory. |
| P0100 | Malfunction in the intake air mass sensor (MAF) circuit. Right bank of cylinders. |
| P0105 | Malfunctions in the intake air mass (MAF) sensor circuit. Right bank of cylinders. |
| P0110 | Malfunction in the intake air temperature (IAT) sensor circuit. Right bank of cylinders. |
| P0115 | No or excessively low signal level from the coolant temperature sensor (ECT). Right bank of cylinders. |
| P0120 | Throttle Position Sensor (TPS) Circuit Malfunctions. Right Bank of Cylinder. |
| P0130 | Malfunction in the pre-catalytic lambda probe circuit (right bank of cylinders). Right row of cylinders. |
| P0133 | Pre-catalytic heated lambda probe voltage too high or response too slow (right bank of cylinders). |
| P0135 | Malfunction in the pre-catalytic lambda probe heating circuit (excessively high voltage) (right bank of cylinders). |
| P0136 | Malfunction in the post-catalytic heated lambda probe circuit (excessively low voltage) (right bank of cylinders). |
| P0140 | Malfunction in the pre-catalytic lambda probe heating circuit (right bank of cylinders) G3/4. |
| P0141 | Malfunction in the heating circuit of the post-catalytic lambda probe (right bank of cylinders) G3/6. |
| P0150 | Malfunction in the pre-catalytic lambda probe circuit (left bank of cylinders). |
| P0153 | Slow response of pre-catalytic lambda probe (left bank of cylinders). |
| P0155 | Malfunction of the pre-catalytic lambda probe heater (left bank of cylinders) G3/3. |
| P0156 | Post-catalytic lambda probe is faulty (left bank of cylinders) G3/5. |
| P0160 | Malfunction of the pre-catalytic lambda probe heater (left bank of cylinders) G3/3. |
| P0161 | Malfunction of the post-catalytic lambda probe heater (left bank of cylinders) G3/5. |
| P0170 | Too lean or too rich of the air-fuel mixture (right bank of cylinders). |
| P0173 | Lean or rich injection (left bank of cylinders). |
| P0201- |
|
| - P0212 | Malfunction in the injector circuit of cylinders 1 - 12 respectively. |
| P0300 | There are random misfires in various cylinders. |
| P0301 - |
|
| -P0312 | There are misfires in cylinders 1–12, respectively. |
| P0325 | Knock sensor 1 is faulty (right bank of cylinders). |
| P0330 | Knock sensor 2 is faulty (right bank of cylinders). |
| P0335 | Malfunction in the crankshaft position sensor (CPS) circuit. Right bank of cylinders. |
| P0341 | Malfunction of the CMP sensor. Right row of cylinders. |
| P0370 | Displacement of the camshaft phase relative to the crankshaft. |
| P0400 | Exhaust gas recirculation flow malfunction. |
| P0410 | Malfunction in the additional air mixing system. |
| P0422 | The efficiency of the catalytic converter has been excessively reduced (right bank of cylinders). |
| P0432 | The efficiency of the catalytic converter has been excessively reduced (left bank of cylinders). |
| P0440 | Leaks in the EVAP fuel vapor recovery system. |
| P0441 | The EVAP system VSV valve is faulty. |
| P0442 | A minor leak has been detected in the EVAP system. |
| P0443 - |
|
| - P0446 | Malfunction in the EVAP canister purge control valve circuit. |
| P0450 | Malfunction in the EVAP fuel vapor pressure sensor circuit. |
| P0455 | A major leak has been detected in the EVAP system. |
| P0460 | Low fuel level in tank. |
| P0462 | Short circuit to ground in the fuel level sensor circuit. |
| P0500, P0501 | Vehicle speed sensor VSS circuit malfunction. |
| P0507 | Unexpected increase in engine speed when the idle speed stabilization system is activated. |
| P0560 | Malfunction in the on-board electrical system. |
| P0565 | Violation in generating the signal to turn on the cruise control. |
| P0600 | AT control unit serial port malfunction. |
| P0604 | Control unit RAM error. |
| P0605 | Control unit ROM error. |
| P0700 | Malfunction of the transmission control system. |
| P0702 | Electrical fault in transmission control system circuit. |
| P0715 | Malfunction in the input circuit of the turbine speed sensor circuit. |
| P0720 | Malfunction in the speed sensor circuit. |
| P0730 | Incorrect selection of AT gear. |
| P0740 | Malfunction in the circuit of the solenoid valve of the TSS AT rotation converter. |
| P0743 | Electrical failure in the torque converter clutch circuit. |
| P0748 | Electrical fault in pressure control solenoid valve circuit. |
| P0753 | Electrical fault in shift solenoid valve A circuit. |
| P0758 | Electrical fault in shift solenoid valve B circuit. |
| P0763 | Electrical fault in shift solenoid valve C circuit. |
| P0801 | Engine/KV electric fan motor malfunction (M4/3). |
| P0802 | Malfunction of the resonance intake manifold switching valve (Y22/6). |
| P0809 | Displacement of the camshaft phase relative to the crankshaft. |
| P0811 | The distributed CAN bus is blocked from the electronic ignition. |
| P1031 | The lambda probes are connected incorrectly (G3/3 and G3/4). |
| P1177 | Oil sensor failure B40 (level, temperature, quality), oil temperature deviation. |
| P1178 | Oil sensor failure B40 (level, temperature, quality), oil level deviation. |
| P1179 | Oil sensor failure B40 (level, temperature, quality), deviation in oil quality. |
| P1180 | Oil sensor failure B40 (level, temperature, quality), excess oil temperature. |
| P1181 | Engine/CB electric fan motor malfunction. |
| P1185 | Oil sensor failure B40 (level, temperature, quality), water in oil. |
| P1186 | Fuel cut-off emergency signal. Activator M16/6 of electronic gas pedal/crankcase/idle speed stabilization. |
| P1225 | Malfunction of the resonance intake manifold switching valve (Y22/6). |
| P1233 | Activator M16/6 electronic gas pedal/cruise control/idle speed control. |
| P1386 | Knock control from ECM. |
| P1400 | The vacuum transmitter (Y31/1) of the EGR valve is faulty. |
| P1420 | Switch valve (Y32) for the secondary air mixing system AIR pump. |
| P1453 | Relay module (K40) for secondary air mixing system AIR, air pump (K40/4k3). |
| P1491 | Too high refrigerant pressure KV. |
| P1542 | Accelerator pedal sensor (B37). |
| P1570 | Blocking launch attempt (rCL Remote Control Models); Violation of CAN signal compatibility from the driver identification control unit DAS to the ECM or EECM and DAS. |
| P1580 | Activator (M16/1) of electronic gas pedal/cruise starter/idle speed control drive EA/CC/ISC. |
| P1584 | Brake light switch (S9/1). |
| P1603 | Distributed CAN data bus from EIS. |
| P1605 | Bad driving conditions are identified by comparing driving speed signals. |
| P1642 | Engine control unit ECM (N3/10) incorrect coding. |
| P1644 | Due to low voltage of the transmission control unit (N15/3), it is not possible to determine the transmission version. |
| P1681 | Lost collision signal. |
| P1747 | Distributed CAN bus signal error from ETC transmission control unit (N15/3) or instrument cluster. |
Chassis (aBS/ASR/ESP/BAS systems) | |
| C1000 | ESP/SPS control unit (N47-5). After replacement, adapt the control unit. |
| C1003 | ESP control unit (N47–5), BAS system computer malfunction. |
| C1010 | Low supply voltage, circuit 87. |
| C1011 | Open/short circuit in the power supply circuit of the auxiliary brake system hydraulic unit solenoid valve. |
| C1012 | Increased battery voltage at terminal 87. |
| C1020 | Distributed CAN data bus communication fault. Check control unit coding. |
| C1022 | Distributed data bus communication fault with engine control unit MSM (N3/5) or CDI (N3/9). |
| C1023 | Distributed data bus communication fault with left engine control unit (ME-SFI, N3/11). |
| C1024 | Distributed data bus communication fault with transmission control unit (N15/3). |
| C1025 | Communication failure via CAN bus with the BAS system control unit. |
| C1026 | General communication failure on the CAN bus. |
| C1038 | CAN bus: Transmission from the ESP system control unit (N47-5) is disrupted. |
| C1040 | CAN bus: Transmission from the ESP system control unit (N47-5) is disrupted. |
| C1100 | Break, poor contact, damage to the rotor teeth of the vehicle speed sensor on the left front wheel (L6/1), different wheel size, incorrect final drive ratio. |
| C1101 | Break, poor contact, damage to the rotor teeth of the vehicle speed sensor on the right front wheel (L6/2), different wheel size, incorrect final drive ratio. |
| C1102 | Broken, poor contact, damaged teeth of the rotor of the vehicle speed sensor on the left rear wheel (L6/3), different wheel size, incorrect gear ratio of the final drive. |
| C1103 | Broken, poor contact, damaged teeth of the rotor of the vehicle speed sensor on the left rear wheel (L6/4), different wheel size, incorrect gear ratio of the final drive. |
| C1112 | Speed sensor: magnetic leakage flux is intermittently affected. Check the wires. |
| C1120 | Open circuit, short circuit in the reference or working signal wire of the ESP stability control sensor (N64) or (B24/15). |
| C1140 | Open circuit, short circuit, initialization of the steering angle sensor (N49). After replacing the components, perform adaptation of the control unit. Turn the steering wheel from lock to lock. |
| C1141 | ESP brake pressure sensor (B34) or ESP pressure sensor 1 (B34/1). |
| C1142 | Open circuit, short circuit in the ABS lateral acceleration sensor circuit (B24/2) or the rotation and lateral acceleration sensor (B24/15) |
| C1143 | Open circuit, short circuit or malfunction of ESP pressure sensor 2 (B34/2). |
| C1149 | Supply voltage for sensors: ESP brake pressure (B34), diaphragm stroke (A7/7b1), lateral acceleration (B24/2) or rotational speed and lateral acceleration (B24/15). |
| C1200 | Open circuit, short circuit, malfunction of the 4-pin brake light switch sensor (S9/1). |
| C1201 | Open circuit, short circuit or fault, delay in switching of BAS system switch (A7/7s1). |
| C1204 | Open circuit, short circuit, malfunction of the BAS system membrane stroke sensor (A7/7b1). |
| C1300 | Open circuit, short circuit in the circuit of the holding solenoid valve of the left front wheel (A7/3y6). |
| C1301 | Open circuit, short circuit of the left front wheel release solenoid valve circuit (A7/3y7). |
| C1302 | Open circuit, short circuit in the circuit of the retaining solenoid valve of the right front wheel (A7/3y8). |
| C1303 | Open circuit, short circuit of the release solenoid valve of the right front wheel (A7/3y9). |
| C1304 | Open circuit, short circuit of the circuit of the holding solenoid valve of the left rear wheel (A7/3y10). |
| C1305 | Open circuit, short circuit in the circuit of the release solenoid valve of the left rear wheel (A7/3y11). |
| C1306 | Open circuit, short circuit in the circuit of the retaining solenoid valve of the right rear wheel (A7/3y12). |
| C1307 | Open circuit, short circuit in the circuit of the release solenoid valve of the right rear wheel (A7/3y13). |
| C1308 | Open circuit, short circuit in the circuit of the outlet solenoid valve of the pressure circuit 1 (A7/3y26), front wheels. |
| C1309 | Open circuit, short circuit in the circuit of the inlet solenoid valve of the pressure circuit 2 (A7/3y27), rear wheels. |
| C1310 | Open circuit, short circuit in the circuit of the pressure circuit switching valve 1 (A7/3y24) of the front wheels. |
| C1311 | Open circuit, short circuit in the circuit of the pressure circuit switching valve 2 (A7/3y25), rear wheels. |
| C1312 | Master brake cylinder switching valve. |
| C1313 | Relay of the solenoid valve of the hydraulic unit. Replace the control unit. |
| C1316 | Open circuit or short circuit in the changeover solenoid valve circuit, pressure circuit 1 (A7/3y24). |
| C1317 | Open or short circuit in the inlet solenoid valve circuit, pressure circuit 1 (A7/3y26). |
| C1318 | Open or short circuit in the changeover solenoid valve circuit, pressure circuit 2 (A7/3y25). |
| C1319 | Open or short circuit in the inlet solenoid valve circuit, pressure circuit 2 (A7/3y27). |
| C1332 | Open or short circuit in the BAS system solenoid valve circuit (A7/7y1). |
| C1400 | Open circuit, short circuit in the ESP pump circuit. |
| C1401 | Open, short circuit or failure to turn off the high pressure pump/valve body return circuit (A7/3m1). |
| C1405 | Malfunction of actuators of pressure circuits 1 and 2. |
| C1406 | The BAS emergency brake assist (A7/7), diaphragm stroke sensor (A7/7b1) or solenoid valve (A7/7y1) is faulty. |
| C1500 | Vehicle speed sensor VSS. |
| C1501 | SPS pressure sensor. |
| C1503 | Piston pressure transfer unit. Check the condition of the rear brake pads. |
| C1504 | The system is disabled. Steering angle sensor (N49) is not initialized, low voltage of the ESP stability sensor. Turn the steering wheel from lock to lock. Rotational speed sensor (N64) or rotational speed and lateral acceleration sensor (B24/15), low voltage. |
| C1511 | The engine control unit is incorrectly coded. |
| C1540 | Road test not conducted. |
Security systems | |
Without side airbags (control unit code starts with 000) | |
| 1 | Security system control unit. |
| 2 | Open or short circuit in the driver's airbag ignition circuit. |
| 3 | Open or short circuit in the driver's belt tensioner ignition circuit. |
| 4 | Open or short circuit in the front passenger seat belt tensioner ignition circuit. |
| 5 | Open or short circuit in the front passenger airbag ignition circuit. |
| 10 | The control unit programming does not match the vehicle version. |
| 17 | Low supply voltage (15R circuit). |
| 19 | Open or short circuit to positive in the safety system warning lamp circuit. |
| 20 | Front passenger seat occupancy sensor - airbag activation. |
| 24 | Driver seat belt fastening sensor (uS models). |
| 25 | Front passenger seat belt fastener sensor (uS models). |
| 73 | Open or short circuit of the ignition circuits. |
With side airbags (control unit code starts with 001) | |
| 1 | Security system control unit. |
| 2 | Open or short circuit to positive in the safety system warning lamp circuit. |
| 3 | Low supply voltage. |
| 4 | Open or short circuit in driver's airbag ignition circuit, control unit programming. |
| 5 | Open or short circuit in the driver's belt tensioner ignition circuit, control unit programming. |
| 6 | Open or short circuit in the front passenger seat belt tensioner ignition circuit, control unit programming. |
| 7 | Open or short circuit in the front passenger airbag ignition circuit, control unit programming. |
| 8 | Open or short circuit in the driver's side airbag ignition circuit, programming of the control unit. |
| 9 | Open or short circuit in the front passenger side airbag ignition circuit, control unit programming. |
| 16 | Driver seat belt fastening sensor (uS models). Programming the control unit. |
| 17 | Front passenger seat belt fastener sensor (uS models). Programming the control unit. |
| 18 | Left side airbag wiring fault. |
| 19 | Open, short, or low voltage in the left side airbag crash sensor circuit. |
| 20 | Open, short, or low voltage in the left side airbag crash sensor circuit. |
| 21 | Right side airbag wiring fault. |
| 22 | Open, short, or low voltage in the right side airbag crash sensor circuit. |
| 23 | Open, short, or low voltage in the right side airbag crash sensor circuit. |
| 24 | Seat occupancy sensor - activation of front airbags. |
| 25 | Front passenger seat occupancy sensor - activation of the front airbag. |
| 26 | Programming the control unit. |
| 27 | Open or short circuit in the front passenger seat occupied sensor with child restraint system (ACSR) circuit. |
| 28 | Front passenger seat occupied sensor with child seat installation sensor (ACSR). Child seat not installed correctly or child seat not connected to passenger seat. Metal objects on passenger or child seat. Nearby electromagnetic emitter (telephone, transmitter, etc.). |
| 29 | Programming the control unit. |
| 31 | Front passenger seat occupancy sensor with child seat position sensor (ACSR). |
| 32 | Damage in the left side airbag crash sensor circuit (A53). |
| 33 | Damage in the right side airbag crash sensor circuit. |
| 34 | Digital Crash Output - Wiring Fault (ARTHUR). Control Unit Programming. |
| 35 | Analog Crash Output - Wiring Damage (model 170Kompressor). |
| B1558 | Child seat installation indicator light. |
| B1559 | Child restraint system (ACSR) information signal. |
Body (automatic air conditioning system) | |
| Display | OBD II tester. |
| FF | No registered faults. |
| 26 | B1026 Air conditioning in the rear compartment. Transmission via the distributed multiplexed data bus CAN. |
| 226 | B1226 Blower Cabin Air Temperature Sensor B10/4 |
| 227 | B1227 Outside Air Temperature Indicator Sensor B 14. |
| 228 | B1228 Left heater temperature sensor B10/2. |
| 229 | B1229 Right Heater Temperature Sensor B10/2. |
| 230 | B1230 Evaporator Temperature Sensor B10/6. |
| 231 | B1231 Coolant Temperature Sensor B11/4. |
| 232 | B1232 Refrigerant Pressure Sensor B12. |
| 233 | B1233 Coolant Temperature Sensor B12/1. |
| 234 | B1234 Solar radiation sensor B32. |
| 235 | B1235 Emission Sensor B31. |
| 241 | B1241 Add refrigerant. |
| 416 | B1416 Coolant circulation pump A31m1. |
| 417 | B1417 Double water valve left A31/1y1. |
| 418 | B1418 Double water valve right A31/1y2. |
| 419 | B1419 Electromagnetic clutch A9k1. |
| 420 | B1420 Idle speed controller. |
| 421 | B1421 Additional fan control unit N65/1. |
| 422 | B1422 Serial interface to instrument cluster K1. |
| 423 | B1423 Shift valve block Y11. |
| 424 | B1424 Activated carbon filter opening actuator A 32m². |
| 425 | B1425 Actuator motor for closing activated carbon filter A32m². |
| 432 | B1432 Additional heater. Maximum heating. |
| 459 | B1459 Serial interface to instrument cluster K2. |
| 460 | B1460 LED – central air deflector, position "Heating". |
| 461 | B1461 LED – Central air deflector, position "Cooling". |
| 462 | B1462 Full Load Signal Diesel Models. |
Tightening force of threaded connections, Nm | |
Tightening torques for fasteners are also given in the text of the Chapter and in some illustrations*. | |
*Tightening torques highlighted in bold in the text must be strictly observed; efforts not shown in bold are only approximate. | |
Wire on the terminal (B+) of the generator | |
| Engine 111 | 15Nm |
| Engine 112 | 18Nm |
| Spark plugs | 28 (engine 271:25) |
| Glow plugs | 12 |
[Information copied from the website MercedesMan.ru]