How to Bleed Air When Replacing Coolant in MG GS?
2 Answers
MG GS coolant air bleeding method: Add new coolant to the coolant reservoir, then start the engine for about 10 minutes to allow the cooling system to purge air. The MG GS coolant typically requires replacement every two years or 60,000 kilometers. Coolant, short for antifreeze coolant, is a liquid with antifreeze properties that prevents freezing during cold winter parking, which could otherwise crack radiators or damage engine cylinder blocks/heads. Coolant replacement procedure: 1. Conduct comprehensive inspection; 2. Flush generator cooling system with clean water; 3. Refill with new coolant.
Bleeding the cooling system after replacing the coolant is quite important. I've done it myself on my MG GS before, mainly to prevent air bubbles from blocking the pipes. The steps are: first, fill it up with new coolant, then start the engine and let it idle for a few minutes—be careful not to get burned. Next, slowly loosen the cooling system's bleed screw, usually located near the engine or on the radiator cap. You’ll hear a hissing sound as the air escapes. Wait until the bubbles gradually shrink and coolant flows out steadily. Then, turn off the engine, check the fluid level, top it up if needed, and securely tighten everything. Take your time during the process, ensuring the engine temperature rises to about halfway—this helps effectively purge the bubbles. If you're unsure about the bleed point location, check the owner’s manual—it marks where the bleed valve is to avoid guesswork and trouble. Safety first—wearing gloves is best, as steam from a hot engine can scald you.
