Mercedes Auto Electrical Repairs

We help Mercedes owners with Electrical system diagnositcs and repairs, thanks to our Mercedes Diagnostic software and electrical test equipment.

Some of the Mercedes Electrical Repairs we offer

Engine management systems including the vehicle’s ECU (Engine Control Unit), engine sensors and electrical control devices.
Batteries and vehicle charging systems.
EIS (Electrical Ignition Switch) and ESL (Electrical Steering Lock) repairs and programming.
ABS (Anti-lock Braking System) braking and ESP (Electronic Stability Program) systems.
SAM unit faults.
Body electrical components including lights, immobiliser systems, electric windows and mirrors.

Engine Management Systems

This system includes the ECU (Engine Control Unit) which is responsible for monitoring the engine’s performance and making necessary adjustments to maintain optimal operation. This system also includes engine sensors such as oxygen sensors, temperature sensors, and pressure sensors. Electrical control devices like solenoids, actuators, and relays are also part of this system..

EIS, ESL and Key Systems

EIS and ESL (Electrical Steering Lock) Repairs and Programming. The EIS (Electronic Ignition Switch) is responsible for reading the key, controlling the vehicle’s ignition system and starting the engine. The ESL (Electronic Steering Lock) is responsible for locking and unlocking the steering column as an anti-theft measure. Repairs to these systems may include replacing faulty components or programming new keys.

ABS and ESP Systems

The ABS (Anti-lock Braking System) helps prevent the wheels from locking up during hard braking, improving vehicle control and stability. The ESP (Electronic Stability Program) system helps to improve vehicle stability and prevent skidding by applying individual brakes and reducing engine power when it detects a loss of control. Repairs to these systems may include replacing faulty sensors or hydraulic components.

Charging and Battery Systems

The battery is responsible for starting the engine and providing power to the vehicle’s electrical systems. The charging system, which includes the alternator and voltage regulator, maintains the battery’s charge and ensures that it is ready to start the engine when needed. We can test the battery and charging system to identify any issues, replace the battery or alternator if necessary, and ensure that the system is charging properly.

SAM Unit Faults

The SAM (Signal Acquisition and Actuation Module) unit is responsible for controlling various electrical systems in the vehicle, including lighting, wipers, and the horn. Faults in this system may require replacement of the unit or reprogramming.

Body Electrical Components

This includes various electrical systems throughout the vehicle, such as lighting, immobiliser systems, electric windows, and mirrors. Repairs to these components may include replacing faulty wiring, switches, or motors.