Here is what I've come up with in the order to get this fixed. This is one of the best visual means of monitor your engine temperature and to make sure water pump is working. Surely, someone in this august and supremely knowledgable Bimmerfest group knows the real answer, and will lead us to it. Over time the thermostat will become stuck open or closed, leading to a variety of issues. Checked water pump it is still operable. If you suspect the head gasket, you should immediately change the oil. And cooling components are working harder than ever.
Check out our section, which has all the parts you'll need to get your vehicle running its best, including filters, fluids, brakes, spark plugs, lighting, and more for your E90! It looks like your electric water pump is throwing out error code, you may need to replace your electric water pump. January 14, 2018 Followup from the Pelican Staff: I would pressure test the cooling system. The car does not overheat. I'm giving these people one chance to make it right. February 23, 2016 Followup from the Pelican Staff: You don't have to. To avoid a mess, wrap a rag around the bleed screw and radiator fill port to catch radiator fluid. But after like 20 minutes of driving I can hear the fan in the front turn on, as it sounds like an airplane.
Two hoses on the front of the thermostat clip on and two in the back are standard hoses with regular hose clamps Unclip the large hose at the front of the thermostat and pull it off. The rubber O-ring came with the water pump are not utilized because the rectangle one already available in the new thermostat housing while the round shape O-rings are for the old connector which was designed differently. January 6, 2017 Followup from the Pelican Staff: Could be poor flow. Should I replace the thermostat? I would highly appreciate if someone please help me and share their thoughts on my approach. A simple thermostat change with radiator flush and new coolant fixed the problem.
Before 2 years i replaced the thermostat behr-wahler and behr radiator. Warranties are for 2 year or 24,000 miles, Oembimmerparts. The odometer as at 64030 the first time it overheated and was towed there. These are quick and easy to check and fix , so it would make sense to look at those before you spend much time and money on other things. I have no idea where the leak came from due to limited visual access but I can confirm it is from one of the water pump components.
They can figure out what part or repair kit you need. See our tech article on Drain cooling system. I changed antifreeze once and just keep adding more as it keeps being losing it by overpressure. The old thermostat, didn't have any rattling when slightly shaken. Give The Pelican Parts parts specialists a call at 1-888-280-7799. Be prepared to catch the excess coolant that may leak in a container. The reason I asked about the fan is because the telltale sign of a bad waterpump on an n54 is the fan running on high speed on a cold engine.
All in, I spent 4. This will be your best bet when diagnosing. You suggest to change the thermostat. Is there some rubber seal that may have fallen out? It was on the way out to the donation bin when I rescued it and turn it into a screw pan by adding few magnets at the bottom. Is the leak only after warm a indication of a specific part that is leaking? I have an issue with coolant temp. On Xi models the design of the subframe makes it hard to reach the bolts but it is definitely doable without removing anything extra.
The sensor should not cause an overheating situation. You may also be able to tell simply by checking the oil dipstick, but I'd recommend draining the oil and replacing it as a precaution. When you activate this you will be able to monitor real time coolant temperature. Any antifreeze meant for new engines aluminum blocks will do. They can figure out what part or repair kit you need.
The pulley is very light and made of plastic material. I bet you will have a water pump or thermostat related fault code. February 14, 2018 Followup from the Pelican Staff: I would assume the thermostat is failing again. Put everything back together in the reverse order. June 23, 2016 Followup from the Pelican Staff: The fan may be faulty or the coolant sensor or thermostat signal is wrong.