These three components are frequently confused, but each plays a different role.
What each component does
- Battery: stores electrical energy and supplies the power required to start the vehicle
- Starter motor: uses electrical power to physically turn the engine during starting
- Alternator: produces electrical power when the engine is running and replenishes the battery
Why it matters
A problem with any one of them can eventually result in a car that won't start. Testing helps establish which one is responsible. Call DB Autos on 01782 844320.
Got a question about your car's starting system? Speak to the team at DB Autos.
Get In Touch →Why Choose DB Autos
DB Autos has been diagnosing and repairing starting-system faults for motorists across Stoke-on-Trent for over 35 years, offering honest diagnosis and clear advice before any work begins. Every job starts with a straightforward conversation about what's needed.