An easy way to check your water pump is to look underneath the car and check for water seepage out of the pump. This water pump is the latest updated part with a composite impeller. Step 10 Install new pump reverse of removal. Is your car starting to run hot? Over time, the bearings in the water pump begin to wear, causing them to eventually fail and seize the water pump. Detach the fan the nut is reverse threaded and let it rest inside the cowl for now. Use your flat blade to prize the plug core back, the whole plug should then pull out. Check out the rest of the website for other parts for this vehicle.
I coulda been a hand model…. If left un-noticed the whole pulley can fall apart which will immediately disable the car and possibly leave you stranded. Once it's undone you can lift the fan and plastic cover up and out. Install water pump pulley and tighten pulley fasteners. You will need: Flat nose screwdriver Ratchet with 10mm socket + extension 32mm spanner Pop the bonnet.
Z4 Not M including Z4 2. I did that as well, I found that you got more room to manouver. You can drain the coolant system down to the level below the coolant pump and place a large catch pan under the engine as more coolant will escape while preforming this job. Figure 10 If you cannot get to the bolt behind the crankshaft pulley you will have to remove the pulley. You will need to replace this hose clamp it is a one time use.
This pulley is available in two different styles - the stock plastic or a stronger aluminum version. Roadfly research told me that the 1997 528i has a faulty design in the Water Pump using a plastic impeller rather then metal and seems to last only 50K-70K, right in my range. Have fun because the carpet is tough!! If your pump leaks a little bit immediately after installation, don't worry about it -- some designs include a metal pipe that is sealed to the pump via a rubber O-ring, which will absorb some water and expand within the next day or two. A bad pump can cause overheating, I suppose, but failing water pumps generally let you know by leaking coolant. Manufacturer Part : 11511730554 Alternate Part : 11.
Plug in the coolant temperature sensor and mount any components that you have removed to gain access to the coolant pump. Now you should be able to pull the entire cowl out. Submitted by Mark Sandler, , performed on November 23, 2002 on a 1998 528ia Replacing the thermostat is pretty easy if you have the right tools to remove the fan. If your coolant pump fails it will not pump as much coolant as designed and allow heat to build up in the engine. Start by removing the two fasteners on the cowl.
One of the biggest weak points is the cooling system. This is a used item and is considered excellent. If left un-noticed the whole pulley can fall apart which will immediately disable the car and possibly leave you stranded. This is held on at each corner via two expanding plastic plugs. Metal impeller pumps are typically heavier and may have bearing problems that lead to premature leaks.
If your pump leaks a little bit immediately after installation, don't worry about it -- some designs include a metal pipe that is sealed to the pump via a rubber O-ring, which will absorb some water and expand within the next day or two. I did not find any leaks from radiator or hoses. Clean the gasket surfaces of the block and apply a small amount of sealant to both sides of the water pump gasket. Is it overheating while sitting at idle? Remove the eight 10mm fasteners green arrows that mount the pulley onto the crankshaft. The following procedure will help you remove the fan and the cowl to gain access to the thermostat.
This vehicle part is currently out of stock. When doing any sort of repair or maintenance there is no replacement for genuine factory parts. The shock of hitting the spanner to the right normally undoes the nut. This article is provided freely for entertainment purposes only and is not intended to be instructional in nature. We have seen these plastic or composite pulleys crack around the mounting bolt holes.