You should always bleed the cooling system after draining it or opening it somewhere other than the expansion tank. By bleeding the system, you can make sure there are no air pockets and the coolant can function as it should. It’s an electric pump, thus the bleeding procedure requires a powerful battery. We finished the procedure without a battery charger, despite the BMW repair manual’s recommendation.
The self-bleeding technique should be started by:
The bleeding can then be started by depressing the accelerator pedal for roughly 10 seconds. When you hear the coolant within the engine and radiator moving, you’ll know the procedure has started. Once it has begun, let the car alone for 8 to 10 minutes. After that, the procedure will be finished, and your cooling system will be totally bled and ready for use.
Authored by:
owner of a 1973 Porsche 914 and a 1998 Impreza 2.5RS with a flat-six engine swap. only when opposing perspectives are horizontal.
In This Article...
Do I have an electric water pump in my BMW?
Failure of the water pump is one of the issues that BMW owners experience most frequently. This is because BMW uses an electric water pump instead of a conventional mechanical water pump in their vehicles.
By moving water around a sort of “water jacket” encircling the engine, water pumps assist in preventing overheating. Without it, your engine’s metal components may expand as a result of unregulated heat, causing some of the parts to grind or even weld together.
Your timing belt powers conventional mechanical water pumps, allowing them to circulate coolant throughout the system. Because of this, mechanical water pumps frequently come at the expense of some horsepower and fuel economy.
In fact, electric water pumps, like those used by BMW, outperform their conventional counterparts. Electric water pumps assist you maintain the horsepower and fuel efficiency of your car by drawing power from the battery. Electric water pumps are often seen in racing vehicles, however BMW includes them in all of their vehicles as part of their commitment to luxury.
Since when does BMW use an electric water pump?
On street-driven vehicles, electric pumps do have a role; in fact, BMW started using them about 2007 and a number of other manufacturers are developing equivalent models. Additionally, an aftermarket model that is appropriate for everyday use is now available.
Why do electric water pumps in BMWs malfunction?
BMW water pumps in particular are susceptible to failure starting at 80,000 km. The water pump is built of plastic, and it’s common for the plastic to start to fracture and corrode with time. Other issues with water pumps may result from issues with the bearing or the parts of the impeller.
How can I tell if the electric water pump in my BMW is damaged?
Another significant factor in the equation is age and distance. Despite any other issues, you might want to think about installing a new water pump if your automobile has logged tens of thousands of kilometers. Water pumps do not last indefinitely, so if yours has served you well for 75,000 miles with no issues at all, it may be time to think about replacing it so you don’t end up on the side of the road when your water pump decides it has outlived its usefulness.
What function does a BMW’s auxiliary water pump serve?
There are several uses for coolant in your car. It is crucial for protecting the engine block from freezing temperatures and maintaining functioning engine temperatures. You may even use it to run the heater in your car. While the majority of automobiles only have one water pump, some include an additional pump known as an auxiliary water pump.
There are many ways in which an auxiliary water pump is different from a primary water pump. It’s electronic rather than belt-driven, for starters. Second, it only functions when additional coolant is pumped through the heater core. It is employed in this instance to warm the air blowing into the cabin. Actually, the auxiliary water pump should only be used when you need to warm the cabin after you’ve switched the engine off. When the key is turned to the “on” position, the pump will operate, supplying the heater core with warmed coolant.
The auxiliary water pump in your car ought to function for the duration of the vehicle. It is an electronic component, though, so it could malfunction at any time. It can become dysfunctional for a variety of reasons, including blown fuses, broken wiring, and seized pump motors.
Additionally, there isn’t a predetermined inspection for this pump. It is not a component of any planned maintenance services that are recommended by the manufacturer. Having said that, they are vulnerable to deterioration, particularly from the motor’s brushes. Damage to the cooling circuit itself is another possibility.
Of fact, since a failing pump is not a common component of driving a car, you might not even be aware of it. Only in extremely bad winter weather may a broken pump cause issues. If you try to operate the heater without the engine running, it may be uncomfortable even then, albeit it won’t take your car off the road.
Of course, you need to be aware of a few indicators of impending failure. These consist of:
- Pump does not function when the engine is off and the ignition is turned on while the heat is on.
- leakage of coolant from the backup water pump
- When the engine is off and the key is turned, the heater does not produce any hot air.
Even while having a broken auxiliary water pump won’t hinder you from driving, it needs to be fixed. The auxiliary water pump can be easily and conveniently replaced by a qualified mechanic, like one from YourMechanic. This will keep you warm during the chilly winters.
How long is the lifespan of a BMW electric water pump?
Concerning Water Pump Replacement Water pumps are intended to endure for at least 100,000 miles, but if yours breaks down, you should replace it with a premium piece of original equipment. There are less expensive replacement pumps available, but they may only last 30,000 miles.
How do I tell if the water pump in my BMW 328i is damaged?
The numerous seals and gaskets start to lose their effectiveness as the water pump ages. When the water pump starts to malfunction, coolant leaks will occur if the coolant cannot be properly controlled by these sealing techniques. Pay alert if you notice any liquid dripping from the front of your car. It’s likely that you have a coolant leak if the liquid is blue in hue.
Is the BMW water pump under recall?
Westwood, New Jersey – 18 April 2018 – 47,806 BMW (OTCMKTS:BMWYY) automobiles have been recalled due to defective water pumps that could lead to an overheated circuit board and a fire hazard. The following BMW vehicles with eight- and 12-cylinder engines as well as MINIs with four-cylinder turbocharged engines are included in the recall:
- 2011-2012 BMW 550i
- BMW 550i Gran Turismo, 2010–2012
- 2012 BMW 650i Coupe and Convertible
- 2009-2012 BMW 750i
- 2009-2012 BMW 750li
- 2009-2012 BMW 760li
- BMW Activehybrid 7 (2011–2012)
- 2010-2012 BMW X5
- 2010-2012 BMW X5 M
- 2008-2012 BMW X6
- BMW X6 Activehybrid SAC, 2010-2011
- 2008-2012 BMW X6 M
- MINI Cooper S, 2007–2012
- MINI Cooper S Clubman, 2008–2012
- MINI Cooper S Convertible, 2011–2012
- MINI Cooper S Countryman, 2011–2012
- MINI JCW 2007–2012
- MINI Clubman JCW, 2008–2012
- MINI JCW Convertible, 2011–2012
- Rolls-Royce Ghost 2010–2012
Is there an electric water pump in the N52?
The inline 6-cylinder N51, N52, N54, and N55 BMW engines each have an electronic water pump. As a result, the DME can fully regulate and control the coolant flow through the engine without being reliant on RPM.
What causes failure of an electric water pump?
The electric motor of a water pump simply ages and wears down over time, which is the most frequent cause of failure. Auxiliary pumps are among the parts of a car or truck that eventually start to malfunction as a result of continuous wear and tear.
How can a water pump that isn’t pumping water be fixed?
- Turn off the pump’s electricity.
- Remove the bladder tank or gauge with the bushing from the pump’s top.
- Fill the pump housing with water by pouring it in.
- TIGHTEN and replace the gauge, bushing, or tank.
- Start the electricity.
- Open the faucet or hose bib at the pump to let the system breathe.
What serves as an Aux water pump?
The purpose of a backup water pump Its major function is to circulate water from the main coolant lines to a heater core via a bypass hose. When the heater is turned on, the heater core is used to gather heat and send warm air into your car.
How can I tell if the pump in my water cooler is functioning?
Checking the Pump RPM is the only reliable way to know if your Liquid Cooling Pump is operating. Only if the pump cable is directly linked to a fan header on the motherboard will this be possible.
What does the thermostat on a BMW do?
The coolant flow from your BMW engine through the radiator is regulated by a BMW thermostat. Coolant flows during warm-up, but it doesn’t enter the radiator until the right operating temperature has been reached. The BMW thermostat doesn’t open until this point, allowing coolant to flow through your radiator to cool the engine while controlling flow rate to guarantee safe operating temperatures at all times. An outdated or failing thermostat needs to be replaced right away, regardless of whether it is jammed open (engine too cold) or closed (engine too hot). To filter these goods for your BMW, use the SEARCH BY MODEL tool on our website.
How is an overheating BMW fixed?
What to do if your BMW overheats is as follows:
- Stop and pull over: Stop the car in a secure area, then pull over.
- Turn up the heat: If the car is still travelling to safety, turn off the air conditioning and crank up the heat.
- All windows should be opened to let the heat go.
- Check the coolant: After the engine has finished cooling, open the hood and check the radiator’s coolant level. Refill if necessary.
- Restarting the engine will allow you to safely drive to your repair. Don’t assume everything is fine on its own. You must still have an expert examine it.
Remember that it takes about 30 minutes for overheated engines to cool down sufficiently so you may see inside. Over-checking puts you at great risk of harm.
You might be concerned about what would occur if you kept driving a hot car. You might:
- Bend the cylinder heads.
- damage the head gasket
- Breach a hose
- Your exhaust system has been harmed
- Your engine’s parts will melt
To be safe, send your hot car to your mechanic as soon as you can to avoid costly engine problems.
How can I tell if the thermostat in my BMW is broken?
The following symptoms indicate a faulty automobile thermostat: The engine overheats and the temperature indicator reads high. Temperature swings are frequent. The vehicle’s coolant seeps under the car or near the thermostat.