Motorad 788-217 thermostat for the 2011-2016 Mercedes-Benz E250 4-cylinder 1.8L and other vehicles controls coolant flow to hold the engine at its operating temperature. The Motorad thermostat comes as an integrated housing with a seal.
- Copper case and wax compound that respond quickly to coolant temperature changes
- Integrated housing with a rubber seal
- Copper, plastic and stainless steel construction
- Built-in bleeder hole
- 100% tested and calibrated
Quick facts
- Part: Motorad 788-217 thermostat
- Also called: engine coolant thermostat
- Fits: 2011-2016 Mercedes-Benz E250 4-cylinder 1.8L and other vehicles
- Material: Copper, plastic, stainless steel
- Condition: New
Overheating, slow warm-up, weak cabin heat or coolant seepage at the housing can mean the thermostat is failing. Before you replace it, rule out a coolant leak elsewhere, low coolant or a faulty temperature sensor, which can cause similar symptoms. One thermostat goes in each engine.
Fits
This integrated-housing thermostat also fits the 2012-2016 Mercedes-Benz SLK200 4-cylinder 1.8L and the 2012-2015 Mercedes-Benz C250 4-cylinder 1.8L. Its original-equipment design is a direct-fit replacement for these vehicles.
Specifications
Fit and size
- Quantity per vehicle: 1
- Mounting holes: 5
- Outlet ports: 3
- Outlet port outside diameters: 49.28 mm (1.94 in) and 25.4 mm (1 in)
Build and materials
- Material: Copper, plastic, stainless steel
- Seal: one rubber seal included
- Actuator type: mechanical
- Valve type: disk
- Start-to-open temperature: 102.78°C (217°F)
- Bleeder hole: yes
- Condition: New
- Country of origin: Israel
In the box
One thermostat in its integrated housing with one rubber seal. Mounting hardware is not included, so plan on new bolts.
Interchange: HT217-887 · 902-5177
78817 · 86144 · 2712000315 · 57882 · P78817 · 50072 · 9788217
This part cross-references / interchanges with the following part numbers:
HT217-887, 78817, 902-5177, 788-217, 86144, 2712000315, 57882, P78817, 50072, 9788217
Frequently Asked Questions
Is Motorad 788-217 a Mercedes C250 thermostat for 2012-2015 cars with the 4-cylinder 1.8L engine?
Yes. Motorad 788-217 fits the 2012-2015 Mercedes-Benz C250 4-cylinder 1.8L. If your car is a different model, look up its year and engine in the "Vehicles it fits" section.
Does the engine coolant thermostat 788-217 come with a seal?
Yes. The thermostat comes in its integrated housing with one rubber seal. Mounting hardware is not included, so plan on new bolts.
At what temperature does the 788-217 start to open?
Motorad 788-217 starts to open at 102.78°C (217°F). It has a mechanical actuator and a disk valve.
Does this thermostat have a bleeder hole?
Yes. The thermostat has a bleeder hole built in. The housing has three outlet ports and five mounting holes.
Does Motorad 788-217 replace number 902-5177?
Yes. Number 902-5177 is one of the numbers Motorad 788-217 replaces, and the Interchange line lists the others.
