Problems associated with aluminium core car radiator leaks

Aluminium core radiators have become a popular choice for vehicles over recent years, due to their lightweight nature and efficient heat dissipation. However, despite these benefits, aluminium radiators can experience leaks. So what are the most common problems associated with aluminium core car radiator leaks? And how can these be resolved?

What are the problems associated with aluminium core car radiator leaks?

There are a number of significant problems that are associated with aluminium core leaks in car radiators. These include:

  • Coolant leakage
  • Corrosion
  • Reducing performance

Coolant leaks

One of the biggest problems associated with aluminium core radiator leaks is the potential for coolant leakage. Coolant is an essential component for maintaining engine temperature and for preventing overheating. Unfortunately, when leaks occur in the aluminium core of a radiator, the coolant itself can escape. This leads to reduced cooling efficiency and a higher risk of the engine overheating. This can ultimately result in engine damage and costly repairs if it is not addressed promptly.


Corrosion is another significant concern related to aluminium core leaks. While aluminium is known for its resistance to rust, it is not entirely immune to corrosion. When the protective oxide layer on the surface of the aluminium core is compromised due to a leak, the metal becomes more vulnerable to corrosion. This corrosion can weaken the radiator’s structural integrity, leading to further leaks and potential failures. This can be a more common and significant problem in regions with harsher weather conditions or in areas where road salt is commonly used.

Reducing performance 

Finally, aluminium core leaks can have a notable negative impact on the overall performance and efficiency of a vehicle. Coolant loss not only leads to inadequate temperature regulation but also reduces the radiator’s ability to effectively transfer heat away from the engine. This can cause a decrease in fuel efficiency, as when the engine is operating at a higher temperature, more fuel will be used. 

Choosing a professional team for repair 

It’s important to choose a reliable, professional and qualified team to repair the radiator of your vehicle. When you choose a professional team like us here at MRS Heat Transfer, you can be sure of:

  • Expertise and knowledge- a professional team will have the expertise and knowledge to resolve your issue and repair or replace your aluminium core radiator without issue. 
  • Customised solutions- here at MRS we can re-manufacture aluminium radiators to specification, or we can replace of repair your radiator depending on your preference and the availability of such radiators. 
  • Top quality- when you choose a team like ours here at MRS, you can be sure of the best possible quality and outcomes.

ere at MRS Heat Transfer we are radiator, car heater, and air conditioning experts, and we have the skills, knowledge and expertise to resolve any air conditioning or car heater problem. Why not get in touch today to find out more?