Vehicle equipment and instruments Mercedes C-Class (W203)
General description of onboard electrical equipment Cars of this brand are equipped with a 12 V electrical system with negative grounding. All lighting fixtures and electrical units are powered by a lead-acid battery...
Electrical Equipment Specifications Note. Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold. Common parameters Incandescent lamps 12 V...
Checking the wiper motor The wiper motor is located in the water collection area under the windshield. To check it is necessary to remove the corresponding cover. Terminal designation The motor...
Checking the heated rear window When the heated rear window is turned on, the field with visible lines of wires should be free of coating or snow after a while. 1. If there is a problem, check the fuse...
Relays and fuses — location and replacement Most of the car's electrical consumers are protected by fuses. The individual components of the lighting system, with the exception of the brake lights, are protected by...
Removal and installation of the windshield wiper motor Removing 1. Open the hood. 2. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Attention! Before...
Removal and installation of the rain sensor Note. The rain sensor is mounted on the windshield, at the height of the rear-view mirror. It controls the wiper intervals. It must be installed with extreme care so as...
Removal and installation of a sound signal Removing 1. Open the hood. 2. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Attention! Before...
Removal and installation of parking sensors Removing 1. Remove the protective bar (1) on the bumper, refer to Section Removal and installation of a protective level on a bumper . 2. Disconnect the connector at the...
Removal and installation of the dashboard Removing 1. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Before disconnecting the cable, find out the...
Removal and installation of the steering column switch The steering column switch switches the following devices: dipped beam, high beam, direction indicators and windshield wiper. Removing 1. Set the wheels straight. 2....
Removal and installation of switches in doors Upper group of switches/front door In the group of switches next to the door handle, depending on the equipment, there is a switch for the electric seat and steering...
Removing and installing parking assistant warning signs Front warning sign Removing 1. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Before disconnecting the...
Removal and installation of the cigarette lighter Removing 1. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Attention! Before disconnecting the cable,...
Removal and installation of the radio receiver Attention! Before removing the radio, find out and write down its anti-theft code. Otherwise, the radio can only be switched on by a MERCEDES workshop or by the radio...
Removing and installing the loudspeaker Loudspeaker in the door Removing 1. Disconnect the negative cable (-) battery with the ignition off. The cabin air filter box must first be removed. Attention! Before...
CAN digital data bus CAN communication B - Sensor 1; CAN - Data bus; M - Executive elements I - III (servo mechanisms); N - Control units (controllers) I-V Basic information The vehicle uses...
Single lock — general information Elements of a single castle 1 - Unlocking / locking; 2 - Access, access code; 3 - Choice, global; 4 - Drive motors for unlocking / locking; 5 - Turning on the direction...
Purpose and location of electrical connectors Refer to the illustrations below. The decoding of designations for the purpose of electrical connectors is given in alphabetical order in Section Electrical equipment...