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Video Thermodynamics 1
Video Thermodynamics 2
Video Thermodynamics 3
Video Thermodynamics 4
Video Thermodynamics 5
Video Thermodynamics 6

Video Cooling

Video Add. Information
Video Summary
Video Maintenance
Video Repair
Video How to get engine warm?
Video Air Cooling
Video Air-stream Cooling
Video Air/Liquid Cooling
Video Blower Cooling
Video Axial Blower 1
Video Axial Blower 2
Video Radial Blower
Video Liquid Cooling
Video Cooling Module
Video Radiator
Video Closed Cooling S.
Video Coolant Pump 1
Video Coolant Pump 2
Video Coolant Pump 3
Video Coolant
Video Antifreeze
Video Frost Plug
Video Electr./Hydr. Fan
Video Vacuum Filling
Video Hydrostatic Blower
Video Belt Drive
Video V-belt Drive
Video Fuel Vaporization
Video Thermostat
Video Electronic Cooling 1
Video Electronic Cooling 2
Video Thermosiphon Cooling
Video Visc. Cooling Fan 1
Video Visc. Cooling Fan 2
Video Oil Cooling
Video Heat Exchanger
Video Charge Ait Cooler 1
Video Charge Ait Cooler 2
Video Fuel Cooling

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Frost Plug


In relatively new vehicles, as a rule, nobody takes much notice of the frost plug. The whole cooling system remains sealed, and the anti-freeze filled in by the factory keeps the radiator water fluid. For the most part, only someone who wishes to install an electric zone heating in very cold countries would perhaps install this instead of a frost plug. Actually, older vehicles, or also those imported from very warm countries, cannot do without a so-called frost plug. The reason is, they are necessary, as a rule, if only for the purpose of removing the quartz-sand which keeps the whole coolant area in the cylinder free during the casting process. Whether they are now called frost plugs or not, through corrosion they can become leaky and thereby cause problems.

Frost plug is also available in the cylinder head.

How it works

Due to the fact that hardly anyone would re-insert the same frost plug that was taken out again, one may puncture the plug, to make removal easier. In theory, it could also fall into the engine block, so take care! New frost plugs are often inserted, depending on the manufacturer, using special tools. It can also be done with a little intuition and sealing paste. The biggest problem is the accessibility. As can easily be seen in the above figure, the horizontal inlet manifold connections show just how difficult it is to get to the plug without first removing the engine. 09/09               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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