Frequently asked questions
These answers support learning, not diagnosis. Always follow the vehicle manual and use a qualified technician for unsafe or unfamiliar situations.
When should I check coolant?
Most basic checks are made with the engine fully cool and the vehicle parked safely. Follow the manual for the correct interval and location.
Can I open a hot coolant system?
No. A hot system may be pressurized. Wait until it is cool and seek professional advice if you are unsure.
Where is the level marked?
Many vehicles use a translucent expansion reservoir with low and full markings, but designs vary.
What if the level is low?
Consult the manual for the specified fluid and procedure. Repeated loss may need professional inspection.
Can courses diagnose a leak?
No. Lessons explain visible observations, while leak diagnosis belongs with a qualified technician.
Are lessons suitable for beginners?
Yes. The catalog starts with terminology and safety before moving to observation routines.
How are saved courses stored?
Saved course IDs remain in your browser's localStorage until you remove them or clear site data.
Can I request a topic?
Yes. Use the contact form and describe the learning gap you would like us to address.