Is there an auxiliary water pump in a Mercedes Benz?
Not every car has an auxiliary water pump, but those that do can throw a monkey wrench in your normal diagnostic logic when solving cooling system problems. 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.
Why does my Mercedes water pump blow cold?
The driver says on cold mornings the heater will blow cold during the drive to work in rush hour traffic. The car is not overheating and the air is coming from the correct ducts. Your first reaction might be to install a new thermostat and inspect the heater core for a blockage. On the test drive, the system may perform great for you.
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.
How does the water pump work in a Mercedes?
The Mercedes water pump is designed on a centrifugal pump that is operated by the engine’s crankshaft and driven by a belt. The inlet valve on the top of the water pump allows the coolant to be generated from the radiator, back through the water pumps impellers and back out into the engine.
How do you remove a water pump from a car?
Detach the water pump from the engine by using a socket wrench to take off the bolts. Once the bolts are out, use a screwdriver as a pry tool to dislodge the water pump from the engine block. Scrape the face of the engine block where the water pump is attached with a putty knife to remove any remaining gasket material or debris.
Where is the drain plug on a Mercedes radiator?
Place a drain pan underneath the drain plug of the radiator located on the bottom of the radiator. Open the drain plug with an open end wrench and allow the coolant to drain until the radiator is completely empty. Once it is drained, close the drain plug.
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.
How to troubleshoot Mercedes Benz air suspension problems?
Learn how to troubleshoot Mercedes-Benz Air Suspension Problems. You decide to buy a Mercedes-Benz, maybe an S-Class, CLS-Class, R-Class, CL-Class or E-Class. One day you hear of other Mercedes-Benz owners having suspension problems. The next day you start having air suspension problems yourself.
Where is the air compressor fuse located on a Mercedes Benz?
For example on the Mercedes-Benz S-Class W220, there is a air compressor relay and fuse 32 on the fuse box located on the passenger side of the engine compartment. Here is a picture that shows where they are located.
Where is the level sensor on Mercedes Benz air suspension?
If you need help with troubleshooting the airmatic valve assembly watch this video. Level sensor is faulty They are located at the rear and front suspension. When they stop working the air suspension control unit may no longer be able to recognize the height of the car.
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Not every car has an auxiliary water pump, but those that do can throw a monkey wrench in your normal diagnostic logic when solving cooling system problems. 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.
How do you change out a VW water pump?
Remove the 2 13mm bolts holding the a/c bracket to the block (These are 2 of the pump housing bolts too.) Remove the bracket by pivoting it up, then using a pry bar pry it out. Remove the 2 hoses that are on the back side of the water pump. Remove the 10mm nut that holds the timing cover to the water pump.
What can cause a car water pump to need replacing?
A leak or a faulty bearing can cause serious damage to your car’s engine. Puddles of coolant underneath your vehicle or high temperature readings may be signs that your water pump needs replacing.
How to change a water pump on a 3.9 V6 Chevrolet engine?
How to Change a Water Pump on a 3.9 V6 Chevrolet Engine Step 1: Make sure the water pump needs to be replaced. Step 2: Remove all the items blocking access to the water pump. Step 3: Loosen the four bolts securing the pulley to the water pump. Step 4: Remove the serpentine belt.