What happens if the water pump fails on a Mercedes?
If a pump fails on some hybrids, the system will disable the hybrid drive system or put the vehicle into a limp mode. Most hybrids also have an insulated coolant reservoir or jug that may have a pump of its own to help warm up the engine faster or keep the batteries at a constant temperature.
Can a low coolant cause a water pump to fail?
Low coolant can also cause a pump to fail because of its position, which is typically high in the system, either on the firewall or strut tower. A failed pump will almost never cause the vehicle to overheat.
When did Mercedes Benz start using auxiliary coolant?
Keep in mind, most Mercedes Benz vehicles made after 1999 have these auxiliary coolant pumps, this includes everything from the C-Class to the S-Class. If you think there is a problem, you not only have to troubleshoot the pump but the system that controls it. We were unable to load Disqus.
Why does my water pump keep overheating?
Impeller The impeller, the device used to pressure the water into the bottom of the powerhead, is a common cause of overheating. A corroded impeller will no longer allow the water pump to function properly. It can also occasionally shed some blades, in which case tracing the water flow is recommended to find all the pieces.
Why is my auxiliary water pump not working?
The issue could be the auxiliary water pump. This pump is not connected to the cooling of the engine. The primary function is to circulate warm coolant to the heater core. If too little coolant is circulated, the blower fan will pull enough heat out of the coolant and cause the heater core to get cold.
What can cause a water pump to overheat?
A clog in the suction line or strainer may be restricting the flow of water and can cause cavitation or loss of prime. Either of these conditions can cause the pump end to overheat. 5. The Motor is Drawing too Much Current
If a pump fails on some hybrids, the system will disable the hybrid drive system or put the vehicle into a limp mode. Most hybrids also have an insulated coolant reservoir or jug that may have a pump of its own to help warm up the engine faster or keep the batteries at a constant temperature.
Low coolant can also cause a pump to fail because of its position, which is typically high in the system, either on the firewall or strut tower. A failed pump will almost never cause the vehicle to overheat.
The issue could be the auxiliary water pump. This pump is not connected to the cooling of the engine. The primary function is to circulate warm coolant to the heater core. If too little coolant is circulated, the blower fan will pull enough heat out of the coolant and cause the heater core to get cold.