Bmw Electric Water Pump Controller

An automotive controller for Pierburg's electric water pumps CWP35 / CWA50 / CWA100 / CWA150 / CWA200 / CWA400 used by many OEM's such as BMW, Audi, VW, Porsche, Mercedes Benz The Tecomotive "tinyCWA" is able to control all CWA type electric water pumps (eWP) in the appropriate manner. It is suitable for cars or any other thing where smart cooling is required. When activated the.

Stopping by from the E60 forum with a question on the N52 and N54 engine electric coolant pump. Just like here, a lot of E60 owners replace the pump after it abruptly fails. Some are replacing it for PM reasons at 60K miles or so.

Trying to address a question on the pump's internal control. Inside The BMW Electric Water Pump: A Tech Tip A more recent Maine BMW 535 wagon just had an electronic water pump replaced; it's a fascinating piece of technology! The water pump in most cars, including earlier BMWs, is driven by a belt on the front of the engine. This is a tried-and-true design, but it does not allow for dynamic control.

60-2 trigger wheel Boost control with the solenoid that DIYautotune sell. No idle control for now. Problem: i NEED an electric water pump because of OEM flawed design at high rpm.

I chose to go with a Pierburg CWA400 that is found OEM on BMW's. It has a built-in solid state relay and the pin-out is like this: Pin 1 is battery voltage Pin 2 is. Im doing an engine swap and have been looking at using the BMW electric water pump for simplicity of the ancillaries belt on the engine.

The pump uses PWM for speed control, and my understanding is that the current firmware only allows for the cooling fan to be on/off operated. BMW petrol engines electric waterpump N43 N46 N52 N53 N54Petrol engines of N series uses electric water pump. Older ones use pump with 480W power, for newer engines the power of it reaches 700W.

This knot also isn't without oddities. Everything looks nice - communication via serial interface, control of all (temperature, load, self-diagnostics etc.) parameters, intelligent management, but. The electric water pump (#1 in Figure 1) on the N54 has a power output of 400W, and a maximum flow rate of 9,000 liters per hour.

The motor (#2 in Figure 1) power is electronically controlled by the control module (#3 in Figure 1) inside the pump housing, and this module is connected via the communication BUS to the Digital Motor Electrics (DME), also known as the engine control unit or ECU. The electric water pump's ability to precisely regulate the coolant flow allows for more accurate temperature control within the engine. This, in turn, enhances the engine's performance, reduces wear and tear, and improves the overall driving experience.

According to Pierburg documentation and back up by TIS documentation, pin 3 in your diagram is the LIN Bus wire, the same goes for other electric 4-pin coolant pumps used on BMWs. The LIN Bus (Pierburg also states some of their pumps use BSD instead of the LIN Bus) provides low rate information back to the DME (BMW's engine control unit for gas engines) and per Pierburg the water pump. The electric water pump is an integral component of BMW's cooling system.

Unlike traditional mechanical water pumps driven by the engine's timing belt, the electric water pump is powered by an electric motor, allowing for independent control and improved efficiency.