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Check engine light on: find out what it means

Suddenly an orange engine symbol lights up on the dashboard. You have no idea whether it is something small or a big problem, and you are worried about an expensive diagnosis at the garage.

🤔 Why does this happen?

The engine control unit monitors many sensors and turns on the light when it detects a fault. The cause can be minor or serious, and the stored error code tells you where to look.

ℹ️ Good to know

If the engine light is flashing, stop driving as soon as it is safe and have the car checked at a garage. Petrol cars from around 2001 and diesel cars from around 2004 usually have an OBD2 port.

✅ Solved in 3 steps

  1. Plug an OBD2 scanner or a Bluetooth ELM327 adapter into the OBD2 port, usually under the dashboard.
  2. Read the error code with the matching phone app and look up what it means.
  3. Decide on the next step: some issues can wait, others need the garage soon, and you go there already informed.
What helps: bestsellers ↓

🛒 What helps: bestsellers

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❓ Frequently asked questions

Does my car have an OBD2 port?

Most petrol cars from around 2001 and diesel cars from around 2004 have one. It is usually located under the dashboard on the driver's side.

Can I keep driving with the engine light on?

If it is lit steadily, have it checked soon. If it is flashing, stop driving and go to a garage.

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