What To Do When Your Engine Warning Light Comes On in Bilston

Solid vs Flashing — What is the Difference?

A solid engine warning light means something has been detected but your car is safe to drive. You should get it checked within a few days. A flashing engine warning light means a serious fault — stop driving as soon as safely possible. Flashing lights often indicate misfires or catalytic converter problems that can cause engine damage if you ignore them.

At Millfields Auto Services in Bilston, we use advanced diagnostic equipment to read the fault code. The light itself does not tell the full story — we need to scan the car to know what is actually wrong.

What Causes the Warning Light?

Common causes include a loose fuel cap, faulty oxygen sensor, catalytic converter issue, or EGR valve fault. Less common but serious faults include misfires from worn plugs or coils, or problems with the emission system. The only way to know for certain is a diagnostic scan.

The Diagnostic Process at Millfields

We scan your car to read the stored fault codes. Then we look at live data — how the engine is running right now — to pinpoint the root cause. Sometimes the problem is simple and cheap to fix; sometimes it needs deeper investigation. We explain what we find and give you options before any work starts.

Get Checked in Bilston Before It Gets Worse

Driving with an engine warning light can lead to more expensive damage if left unattended. Call us on 01902 492116 as soon as you see the light. We can often get you in for a diagnostic scan the same day. Honest diagnosis, clear pricing — that is how we work at Millfields Auto Services.