Content

• Steps
• Tips
• Warnings

If you want a cheaper radiator repair, try doing it yourself before going to the mechanic. Most radiators fail and leak due to wear and tear. A radiator leak is a very common problem and is easier to fix than you might think. However, do not attempt to repair your car's radiator unless you find the procedure completely comfortable for you.

Steps

1. 1 Look for signs of radiator leaks.
   • A low coolant level is a sure sign that your radiator is dripping. Remember to check the coolant level from time to time. Top up with coolant if necessary, as a persistently low level can cause additional problems.
   • A puddle of bright green antifreeze under the car is another sign that you are dealing with a radiator leak. Remove liquid quickly as it is extremely toxic to animals and children. Take special precautions to dispose of the liquid properly.
2. 2 Locate the leak. Raise the hood and allow the engine to warm up. You can immediately see the hose leak. Look closely for leaks in the cap or at the seams.
3. 3 Repair the radiator hose leak.
   • Use pliers to pull the cooling fin away from the tube, then cut the tube
   • Wrap the ends of the pipe.
   • Crimp the ends to form a solid edge.
   • Use cold welding to secure the bend. Give it a few hours to harden.
4. 4 Repair the leak under the radiator cap by replacing the gasket or cap. Check your car manual for the exact part you need. A radiator cap that doesn't fit perfectly can cause even more problems.
5. 5 Repair the leak at the radiator seam by applying a metal sealant to the outside of the seam and letting it dry. It will harden overnight.
6. 6 To eliminate the leakage of the radiator itself, first empty it. Then clean up the leak, cold weld it and let it cure for a couple of hours.
7. 7 Repair a hole or crack in the radiator in one of two ways:
   • Use epoxy plastic hardener to close holes or cracks.
   • Use an additive that stops leaks. Many additives on the market can be mixed with antifreeze and are very easy to use. Follow the directions on the package.
8. 8 Service your radiator to prevent further damage.
   • Flush the radiator at least every 6 months.
   • Check the water level regularly and top up as required.
9. 9 Have your car driven to a professional mechanic as soon as you can. The repairs you do yourself can only serve as a temporary measure.

Tips

• In emergencies, motorists use creative ways to fix leaks on the road. For example, gum or even a piece of bread can be used to stop the leak. You can also add black pepper or an egg to the radiator for this purpose.

Warnings

• Make sure the vehicle has cooled down for at least 15 minutes before removing the radiator cap. Attempting to remove the cover while the engine is hot can result in severe burns.
• Wipe away any grease and dirt that may have accumulated on the radiator.