Also, be sure to properly flush all of the old coolant out if you're updating an older engine with the HOAT chemical formula to the newest Si-OAT chemical formula. Mixing the 325.5-spec with the 325.0-spec will cause accelerated wear of cooling system components. What Else Can I Do For My Cooling System? When you choose our coolant flush service at South Coast Garage, you can trust us to prioritise your safety and the health of your vehicle. Your Mercedes-Benz will receive the utmost care, providing you with peace of mind on the road. In Summary

Propylene Glycol, on the other hand, is a less toxic and safer alternative. It also has good heat transfer properties, but it has a lower boiling point than Ethylene Glycol. This is the traditional coolant based on inorganic additives and is called inorganic additive technology (IAT). It is a tried and proven chemistry that provides a fast acting protective film. The additives deplete and the coolant needs to be drained and replenished every couple of years. This type can be used on all mixed metal engines with components including steel, cast iron, copper, brass, aluminium and solder without any detrimental effect. It is always best to use the engine manufacturer’s advice. If engine contains yellow metals [copper and brass as in older vehicles] then the long life products based on organic technology should not be used. As a general rule, most modern engines require the long life organic antifreezes. To protect your engine from potential damage, it is essential to maintain your Mercedes’ cooling system properly. This includes using the correct coolant and ensuring it is at the right level. Ethylene Glycol has exceptional heat transfer properties. It efficiently absorbs the heat generated by the engine and effectively moves it away to maintain the correct operating temperature. However, Ethylene Glycol is toxic and must be handled and disposed of carefully to prevent harm to humans, animals, and the environment.

Get your colour right

The strength of your antifreeze can be measured using a hydrometer or a refractometer. Hydrometers are easier to use but can be less accurate. Having the correct quantity and strength of coolant will make the difference between steam by the side of the highway or sitting pretty behind the wheel with the a/c on full.

Antifreeze is a liquid that's added to a car's engine cooling system. It stops the water from freezing under normal cold weather conditions. Yes, Zerex G-05 is a fully formulated (nitrite containing) coolant that will help protect diesel engine cylinder liners from pitting corrosion. It has also been approved by Cummins and Deere & Company.

Getting the right coolant

The older Q1030004, G48-spec stuff can be used in a newer engine like these, but only if the cooling system is completely drained and refilled. We strongly advise against mixing the two, which can lead to damaged cooling system components. 325.6/326.6-Compatible Engines (2014-Present): As we know, not all engine coolant is identical. Different cars require different formulas with different colors to meet the manufacturer’s specifications. However, once you determine which formula you need, you can choose whichever brand you’d like. Genuine Mercedes coolant is one of the best ways to go as it is the exact stuff dealerships and the factory uses in brand new examples. We offer the latest specification stuff in its concentrated form in a gallon jug. Rowe provides a concentrated gallon of the older 325.0-spec coolant for use in the older engines if you’re looking for a non-Mercedes brand. Otherwise, you can use the official stuff found here. Proper maintenance of your Mercedes-Benz coolant is crucial for keeping your vehicle running in top condition. Here are some key reasons why:

At South Coast Garage, we have a team of experienced professionals who can provide you with reliable and high-quality service to meet or exceed dealership standards. Our service employs only the best coolant, ensuring optimal results for your Mercedes-Benz while preserving your manufacturer’s warranty.As well as lowering the freezing point, it also raises the boiling point of engine coolant. Along with a pressurised system, this helps to reduce the risk of overheating. Traditional or 'standard' coolants for systems with aluminium components use silicates for corrosion protection and these tend to 'drop out' over time hence 2 year service life. Some manufacturers switched to OAT as it lasts longer and some engines don't like the stuff- one/some of the corrosion inhibitors in certain types/brands can soften some plastics over time... dexcool is one of the usual suspects associated with this, specifically the inhibitor 2-EHA