Hi guys,
I found that my CLA250 W117 engine coolant temperature are below working temp and cause rough idling during cold start. So i send in service center and they told me that the thermostat failure and always in open condition so engine does not warm and cause rough idling.
So i decide to replace the thermostat myself but end up the new thermostat broke too.
Anyone experience this? Could it be water pump or engine too hot and cause thermostat maximum open can break the thermostat housing?
I found that my CLA250 W117 engine coolant temperature are below working temp and cause rough idling during cold start. So i send in service center and they told me that the thermostat failure and always in open condition so engine does not warm and cause rough idling.
So i decide to replace the thermostat myself but end up the new thermostat broke too.
Anyone experience this? Could it be water pump or engine too hot and cause thermostat maximum open can break the thermostat housing?
