Contents: Front sensors ↡ Rear sensors ↡
Front sensors
Front ABS Wheel Sensor Installation Details
L6/1 - Left front wheel sensor; L6/2 - Right front wheel sensor; 1 - Bolt
1. Remove the appropriate front wheel.
2. Unscrew the mounting bolt (1) and remove the sensor (L6/1 or L6/2).
3. Lightly lubricate its seat in the hub assembly, then disconnect the electrical wiring from the sensor (X62/26 or X62/27).
4. Assess the condition of the rotor (measuring ring) on the hub assembly, replace if necessary (see Section Removal and installation ABS wheel sensor rotors).
5. Installation is carried out in reverse order.
Rear sensors
Wheel Sensor Wiring Diagram
3 - Tool box in the luggage compartment
4 — Wiring harness
X92/3 - ABS Wiring Connector
Rear ABS Wheel Sensor Installation Details
1 - Bushing in hub assembly
2 - Brass coupling
L6/3 — Wheel sensor
Location of the through hole (5) in the floor panel
Article based on data from the website: www.MercedesMan.ru
1. On models with the corresponding configuration (code ET2), activate the service mode of the TELE AID emergency call system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
2. Turn on the auxiliary battery and connect it to the standard battery, then disconnect the negative cable from the latter.
7 - Auxiliary battery
8 — Positive wire terminal of the module
9 — Terminal of the negative wire of the module
W10 - Battery ground
3. Remove the corresponding rear wheel.
4. Carefully release the sensor (L6/3 or L6/4) from a brass seat bushing (1).
5. Assess the condition of the rotor (measuring ring) on the hub, - replace if necessary (see Section Removal and installation ABS wheel sensor rotors).
6. Remove the brass coupling (2).
7. Remove the relay mounting block in the engine compartment of the vehicle (see Chapter On-board electrical equipment).
8. Disconnect the connector (X92/3) of the ABS electrical wiring, which is located in the tool box (3) in the luggage compartment of the vehicle.
9. Disconnect the other harness connectors (4) inside the tool box (3).
10. Remove the moisture-proof screen.
11. Push the wiring harness (4) through the passage (5) in the floor panel.
12. Disconnect the wheel sensor wiring from the connector (X92/3) (L6/3 or L6/4) and finally remove the last one together with the harness.
13. Installation is carried out in the reverse order - make sure that the electrical wiring is laid correctly, use new insulating tape to secure the harness.
14. On models with the corresponding configuration (code ET2), deactivate the service mode of the TELE AID system (see Section Activation/deactivation of the service mode of the TELE AID emergency call system).
15. 2 Finally, read the DTC codes and clear the on-board diagnostic system memory using the STAR DIAGNOSIS scanner (6511 1801 00) (See Chapter Engine electrical systems).