Car owners in Spain often face situations where their vehicle refuses to start at the most inconvenient times. One possible cause of such issues is a malfunction in one of the key components of the starting system — the solenoid.
From a technical perspective, a solenoid is a cylindrical coil of wire through which an electric current flows, generating a powerful magnetic field. These devices are used not only in cars, but also in household appliances, electronic locks, and hydraulic systems.
In a car’s starting system, the solenoid acts as an intermediary between the battery and the starter motor. When the driver turns the ignition key or presses the start button, the solenoid receives an electrical signal from the battery. At this point, the device moves the starter gear inside the coil, allowing it to engage with the engine’s flywheel. At the same time, the electrical circuit closes, enabling the starter to spin and the engine to fire up.
Thus, the solenoid serves as both a mechanical and electrical bridge, without which the engine cannot start. If this component fails, the vehicle may not respond to attempts to start it.
Among the most common solenoid malfunctions, several scenarios can be identified. Sometimes, when turning the key or pressing the button, nothing happens—this indicates that the circuit is not closing. In other cases, a distinctive metallic click can be heard, but the engine does not start—meaning that not enough current is reaching the starter. Sometimes the car only starts intermittently, pointing to internal electrical issues or worn contacts. Another possible problem is incorrect gear movement, which prevents it from engaging with the flywheel. Additionally, a defective solenoid may overheat due to poor conductivity.
If these symptoms occur, specialists recommend replacing the solenoid or, if necessary, the entire starter. In Spain, the cost of this procedure ranges from 20 to 60 euros depending on the service center.
Many drivers wonder whether they should press the clutch pedal when starting the engine. Experts note that this habit reduces strain on the starter and battery, as the transmission remains disengaged during ignition. As a result, the gearbox components and clutch disc do not move, which lowers the risk of breakdowns.
