Buy OEM Mercedes-Benz Thermostats
Let the thermostat in your Mercedes-Benz go, and its engine can overheat, damaging itself and other auto parts and leaving you on the hook for the repair bill. Keep your costs down; replace it sooner rather than later. At MB Part Source, we've got the part you're looking for, at the right price. Order now, and you'll have it at your door before you know it; we ship fast, all over the US. Contact us with any questions.
Coolant Thermostat
Mercedes-Benz
642-200-23-15
You will be required to provide a VIN in order to complete your order.
$114.26
MSRP $159.00
Save $44.74
28.1% Off 
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Mercedes-Benz Thermostat FAQ
How Can I Tell if the Thermostat in My Mercedes-Benz is Faulty?
Look for the signs. They include a Check Engine light on the dash, the engine and AC and heating not running right, and the temperature gauge on the dash not reading constant (i.e., its needle not being dead-center or in the slightly cold range. Other symptoms of thermostat failure include warped hoses and gaskets, a stuck valve, and coolant not moving through the cooling system (things like the radiator) the way it's supposed to.
How Do I Replace a Bad Car Thermostat?
It's fairly straightforward. All you'll need for the job is a drip pan, a ratchet, some pliers, a gasket, a metal scraper, and, of course, the thermostat and some fresh coolant. Just be sure to do repairs with a cool engine; a hot one can mean serious burns. If you're not quite sure how to go about it, a Mercedes-Benz dealer can help.