How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Technicaldan Your Own Question
Technicaldan, Technician
Category: Australia Car
Satisfied Customers: 101
Experience:  Accredited
Type Your Australia Car Question Here...
Technicaldan is online now
A new question is answered every 9 seconds

2003 Volkswagen Beetle overheated and spilled coolant. Still

Customer Question

2003 Volkswagen Beetle overheated and spilled coolant. Still coolant in the reservoir and no more leaking or dripping under the car. Checking to see if there is a pressure release for the coolant before I fire up the engine and top the coolant back up again.
Submitted: 1 month ago.
Category: Australia Car
Expert:  Technicaldan replied 1 month ago.

Hello, the coolant cap is the pressure regulator also.

If you look, the cap isn't just a plain cap, it's job it to allow excess pressure out when the system is heated and to release vacuum as the system cools, it's a quite involved piece of equipment in the cooling system.

If there is no leaks on the engine that you can find, I would consider whether this cap needs replacing.

Think back to old pressure cookers, the pressure was maintained so that the water wouldn't boil until a higher temperature, if the pressure cap is faulty the water boils at a lower temperature.

I hope this helps ;)

Related Australia Car Questions