Troubleshooting and engine failure
This is how you handle engine failure and basic car malfunctions on the road.
Engine failure or technical problems on the road are stressful, but with the right knowledge you can handle the situation safely. The theory test can test what you should do in case of a stop along the road.
Common Causes of Engine Failure
| Cause | Symptom | Action |
|---|---|---|
| Out of fuel | Engine stops gradually | Fill up fuel |
| Dead battery | Engine won’t turn over | Use jumper cables or call for help |
| Overheating | Temperature warning lights up | Stop and let the engine cool down |
| Timing belt breaks | Engine suddenly loses power | Do not continue driving, call for help |
| Faulty fuel pump | Engine jerks and dies | Needs a mechanic |
What to Do in Case of Engine Failure
- Turn on hazard lights immediately
- Try to steer the car to the shoulder or a safe place
- Put the car in gear (manual) or P (automatic) and pull the parking brake
- Place a warning triangle at least 150 meters behind the car on the motorway, 50 meters on normal roads
- All passengers should get out of the car and stand behind the guardrail if possible
- Put on a reflective vest
- Call roadside assistance or emergency services if necessary
Important Warning Lights
Learn the most important warning lights :
- Red oil pressure: Stop the engine immediately
- Red temperature warning: Overheating, stop as soon as possible
- Red battery light: Charging system is not working
- Yellow engine warning: Fault in engine management, visit a workshop
Basic Checks You Can Do Yourself
- Check oil and fluids under the hood
- Look for visible leaks under the car
- Check the fuse box if something electrical is not working
- Check if the battery has visible corrosion on the terminals
Flat Tire on the Road
If you get a flat tire, you will notice the car pulling to one side or driving unstably. Gradually reduce speed, do not brake hard, and drive to a safe place. Use a spare wheel or tire repair kit, and remember that a spare wheel must not be driven over 80 km/h. Always check the tire pressure on the spare wheel as part of daily checks.
Further Reading
- Car instruments and warning lights about what the different lights mean
- Oil levels and fluids for checking engine and brake fluid
- Daily car checks to prevent problems
- Seatbelt and airbag about passive safety in accidents
Read next
More in Class B course
Accidents involving vulnerable road users
Special procedures and considerations for accidents involving pedestrians and cyclists.
Accidents, reporting and first aid
Checklist for safe handling of accidents and proper notification.
Adapted speed and hidden danger
What adjusted speed means in practice, and how you anticipate hazards you cannot see.
Age limits and practice driving
Everything about age limits for class B and what is required for private practice driving with a companion.