Starter solenoid for your car

Starter solenoid for Top models
- BMW 3 Series starter solenoid
- VW GOLF starter solenoid
- BMW 5 Series starter motor solenoid
- AUDI A4
- MERCEDES-BENZ C-Class starter solenoid
- FORD FOCUS starter solenoid
- MERCEDES-BENZ E-Class starter motor solenoid
- BMW 1 Series
- FORD FIESTA starter solenoid
- AUDI A3 starter solenoid
- AUDI A6 starter motor solenoid
- VW POLO
- VAUXHALL ASTRA starter solenoid
- VW TRANSPORTER starter solenoid
- VW PASSAT starter motor solenoid
- MINI Hatchback
- NISSAN QASHQAI starter solenoid
- HONDA CIVIC starter solenoid
- VAUXHALL CORSA starter motor solenoid
- FORD MONDEO
Other Electrics auto parts
Your Starter solenoid worn out? » Read more about common malfunctions • Repair • Replacement manual
Small but indispensable: the starter motor magnetic switch
The magnetic switch is a small car part on the engine's starter motor. Although starter and magnetic switch look like a single part, they are two separate components which can be separately replaced or repaired.
Task of the starter magnetic switch
The starter is a small but very powerful electric motor. It powers up the moving parts of an engine sufficiently long for the ignition to take over. In order to reduce wear and consumption, the starter is only switched on for the duration of the starting process. During driving it is mechanically separated from the engine. To this end the starter has a magnetic switch: the switch pulls the starter shaft into the matching starter motor pinion.
Construction of a magnetic switch
The magnetic switch consists of a casing with an electro-magnet, a tension spring, a cylinder and a claw. Starting the car engages the magnetic switch. As soon as the ignition key is released, the magnetic field in the magnetic switch collapses and a tension spring pulls the steel cylinder back into its original position.
Magnetic switch defects
The starter motor magnetic switch is a mechanical-electrical part exposed to high voltage and temperatures. Although its construction is robust, its life span is limited to 7 – 10 years. Indications of wear can be:
- - jammed cylinder due to intrusion of dirt
- jammed cylinder due to lacking lubrication
- jammed cylinder due to burr formation
- insufficient magnetic effect
- mechanical wear on the claw
- - blown fuse
- corroded contacts
- broken cable / marten's bite (rodent damage)
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