Warning lights
Inspection and diagnostics for dashboard warnings. A photo of the warning helps us arrange the appropriate checks.
Diagnostics
Car won't start: causes and diagnosis
Fault finding when the car will not start or turns over slowly. We inspect the starting and electrical systems before recommending a repair.
What you hear when you press the start button narrows down the cause. A click points to the battery or starter, slow cranking to the battery, and normal cranking without starting to fuel or ignition.
Common causes
- Discharged or failing battery
- Starter motor or its connections
- Immobiliser or key recognition faults
- Fuel pump or ignition faults
What to do
Avoid repeated attempts. Note any messages on the dashboard and call us.
Questions and answers
The engine cranks but will not start. What is wrong?
Fuel delivery, ignition or a sensor fault. Do not keep cranking: it drains the battery and can flood the engine.
What should I do if the car won't start at home?
Check whether the dashboard lights come on and what you hear when you press the start button, then call us: a click, slow cranking or silence each point to different causes.
Related symptoms
Check engine light
Diagnostics for an engine warning light, including stored faults and the systems related to the symptoms you have noticed.
Related services
Battery & electrics
Battery testing and electrical diagnostics for starting, charging and power supply faults.
Engine repair
Engine diagnostics and repair for oil leaks, overheating, timing faults and changes in performance.
