Check engine light on? What it means
The check engine light is the one warning drivers worry about most — but it covers everything from something trivial to something serious. Here's how to read it.
Steady light vs flashing light
- Steady light — a fault the car wants looked at, but usually not an emergency. You can drive gently and get it scanned soon.
- Flashing light — a serious misfire that can damage the catalytic converter. Stop driving hard and get it checked right away.
Common causes
- Loose or faulty fuel cap — surprisingly common; tighten it and the light may clear.
- Oxygen sensor — affects fuel mix and economy.
- Spark plugs or ignition coils — a misfire.
- Catalytic converter — often follows a long-ignored misfire.
- Air-flow (MAF) sensor — upsets the air/fuel reading.
Typical Dubai cost: a diagnostic scan is inexpensive and tells you the exact
fault code before you spend on parts.
The repair cost depends entirely on the code — get it scanned first.
What to do
Get the car scanned — it reads the exact fault code so nobody has to guess. Any garage can do it in minutes. Ask for a free inspection or diagnostic so you know what you're dealing with.
Do you know why customers leave a bad review — even after a good repair?
It's usually a slow reply, not the work. Mistri answers every customer in seconds — quotes your price and books the car in — so no one is left waiting.
See how it works →Test it for 30 days. Cancel anytime.