Check Engine Light
Is a dashboard warning that your vehicle’s computer has detected a problem with the engine, emissions system, or another related component
Check Engine Light
Check Engine Light
The “engine light” (also called the Check Engine Light or CEL) is a warning indicator on your vehicle’s dashboard that illuminates when the car’s onboard computer (the Engine Control Unit or ECU) detects a problem with the engine, emissions system, or other critical components.
What does it mean when the engine light comes on?
Solid Yellow/Orange Light – Indicates a non-urgent issue that should be checked soon. Examples:
Loose or faulty gas cap
Minor sensor malfunction (O2 sensor, MAF sensor)
Emissions system problem
Small exhaust leak
Flashing Red/Yellow Light – Signals a serious problem requiring immediate attention (to avoid engine damage). Possible causes:
Severe engine misfire (damaging the catalytic converter)
Major ignition or fuel system failure
Critical sensor failure
Common Causes of a Check Engine Light:
Loose or faulty gas cap (one of the most common reasons)
Failing oxygen (O2) sensor (reduces fuel efficiency)
Catalytic converter issues (expensive if ignored)
Spark plug/ignition coil problems (causing misfires)
Mass Airflow (MAF) sensor failure (affects air-fuel mixture)
Exhaust system leaks (EVAP system leaks)
Engine timing or fuel system issues
What Should You Do?
If the light is solid:
Check the gas cap first (tighten or replace it).
Use an OBD-II scanner (available at auto parts stores) to read the trouble code.
Schedule a diagnostic with a mechanic if the light stays on.
If the light is flashing:
Pull over safely if driving (to avoid engine damage).
Tow the car to a mechanic for immediate inspection.
Ignoring a flashing Check Engine Light can lead to expensive repairs (like a destroyed catalytic converter or engine damage). Even a solid light should be checked to prevent long-term issues.
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e-CAR Services
Car service
Car repairs
Full list of repair services
Aircon Regas
Restore your vehicle’s cooling performance with a professional aircon inspection and regas.
Mechanical Repairs
Professional repairs for worn, damaged or faulty mechanical components.
Brake Repairs
Inspection, maintenance and repair of brake pads, discs, fluid and related braking components.
Engine Cooling
Diagnosis and repair of engine, radiator, water-pump, overheating and cooling-system problems.
Suspension Repairs
Repairs to shocks, wheel bearings, CV joints, and other suspension parts.
Transmission & Clutch Repairs
Diagnosis and repair of clutch, gearbox, transmission and drivetrain problems.
Diagnostics
Advanced diagnostic testing to identify warning lights, electronic faults, engine problems and performance issues.
Commercial-Vehicle Services
Servicing, maintenance and mechanical repairs for bakkies, LDVs and selected commercial vehicles.
Fleet Maintenance
Service a fleet of cars or trucks with a fast turnaround time.
e‑CAR workshops provide a broad range of servicing, maintenance, diagnostic and mechanical repair solutions. Services and vehicle capabilities vary by workshop, so check your local workshop’s profile before booking.
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Please note that not all service centres offer the full range of services, and available services may vary between locations. We recommend confirming with your chosen service centre prior to booking your vehicle.
