Mercedes-Benz CLK550 coolant leak from radiator, replacing radiator and related components after similar previous issue on Mercedes-Benz CLK550

Some Mercedes-Benz CLK550 owners report experiencing coolant leaks from the radiator, often leading them to consider replacing the radiator and related components. These leaks can stem from various issues, including a leaking radiator hose, a faulty water pump, or a loose hose clamp. Additionally, owners may encounter problems with the thermostat housing, intake manifold gasket, heater core, radiator, cap, or even a blown head gasket. Common symptoms of a failing radiator include leaking coolant, an overheated engine, and unusual noises, which should be addressed promptly to avoid further engine damage. To diagnose coolant leaks safely, some owners utilize a pressure tester borrowed from auto parts stores, allowing them to pinpoint leaks without the risk of burns.