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About this part
What it does. Reach Cooling Engine Coolant Thermostat Reach Cooling 659-T4-10643 is part of the cooling system that carries engine heat away and holds the engine at operating temperature.
Symptoms that point to this part
- Temperature gauge climbing
- Coolant puddles under the car
- Heater blowing cold
- Sweet coolant smell
Fitment. Catalogued as fitting 2019–2020 Mercedes-Benz S450, 2019 Mercedes-Benz E450, 2019 Mercedes-Benz S560e, 2019 Mercedes-Benz Gls450, 2019 Mercedes-Benz Glc43 Amg, 2019 Mercedes-Benz C43 Amg. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.