Car won't start? Causes and solutions
You turn the key and nothing happens. Or you hear a click, a faint whir — but the engine won't fire. A car that won't start is one of the most frustrating breakdowns. Here are the most common causes and what you can do.
Dead or faulty battery: the most common cause
A flat or failing battery is behind most cases of a car not starting. It powers the starter motor, and if it lacks charge, the engine can't turn over.
Symptoms: rapid clicking, dim lights, unresponsive dashboard. Common causes: interior light left on, old battery (average lifespan: 4–5 years), faulty alternator.
What can you do?
Try jump-starting with cables if you have them and another vehicle nearby. If that doesn't work, request help via FastAssist24 — your request is forwarded to available partners in your area.
Faulty starter motor
If the battery is fine but the car still won't start, the starter motor may have failed. Typical symptom: a single loud metallic click, but all electronics work normally. This requires professional repair.
Fuel and ignition issues
An empty tank, clogged fuel filter, faulty fuel pump or injection problem can prevent starting. Worn spark plugs or a broken timing belt are also possibilities, and all require professional attention.
When to call for professional help?
If you can't identify the cause, if jump-starting doesn't work, or if you hear unusual noises, use FastAssist24 to request assistance. You'll be connected to an available roadside partner near you.
👉 Need help? Submit your request and get connected to an available roadside assistance provider in your area.
Frequently asked questions
My battery is new but the car still won't start — why?
A new battery doesn't rule out other causes: starter motor, immobiliser, fuel system or ECU. Professional diagnosis is recommended.
Is jump-starting safe?
Yes, if done correctly (red on positive, black on earth point). Never jump-start a visibly damaged battery or one that smells of gas.
Is FastAssist24 available 24/7?
Yes, around the clock — including nights, weekends and public holidays.
Related articles
10 April 2026 · 6 min read
Broken down in Belgium? Here's what to do
Breaking down is stressful, but it happens to everyone. Whether you're stuck on the E40 near Brussels or stranded in a quiet street in Antwerp, knowing what to do makes all the difference. Follow these steps to stay safe and get help fast.
Read more →15 April 2026 · 5 min read
Flat car battery? Here's how to fix it fast
A flat battery is one of the most common reasons people call for roadside assistance — an interior light left on overnight, an old battery on a cold morning, or a car unused for weeks. The good news: in most cases it's quickly fixed if you know what to do.
Read more →Broken down?
Submit your request in under 2 minutes. It's forwarded to available partners in your area.