Question about 1994 BMW 3 Series
Bmw 316i, water pump removal
Drain the cooling system, remove radiator, remove fan (if its the viscous fan you require a thin 32mm open end spanner to fit the nut WHICH IS A LEFT HAND THREAD) a sharp knock should move it, then slacken the alternator drive belt and remove it, remove the fan drive pulley 4 bolts and lift off the pulley, next slacken and remove the pump retaining bolts and slide the pump out, if it is very tight insert 2 X M6 bolts into the jacking holes one each side and very evenly jack the pump out a quarter turn at a time, clean all surfaces before reassembling.
Posted on Jul 16, 2010
Remove the radiator to have better access.
remove all the belts
now here is the hard part you need to make your own tool or buy the bmw tool to hold the fan belt pulley by the 10mm bolts some how there are many tools that you can use for this just be creative sometime weding a bolt or a big screwdriver does the job too in between the pulleys than loosen the 32mm nut which you can get that wrench at a bicycle shop for a few buck unless you have a bench grinder and can grind a 32mm down to half its thickness or buy the bmw fan pulley wrench and holder there expensive than just remove the water pump. Sometimes they will not come out very easy just to let you know the times I've changed them in my car or others I have had to beat on them with a Hammer to break them off they seize up in there pretty darn good and once you break them you have to continue till its out I recomend any water pump that has a metal impellar or you might end up being stuck doing this job again in the next 6 months make sure the part is German trust me its worth it. Good luck
Posted on Sep 26, 2009
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Posted on Jan 02, 2017
SOURCE: bmw 316i overheating
Also check the radiator cap. If the spring in the radiator cap is worn, it is not pressurizing the cooling system properly and therefore it will cause the vehicle to overheat. This is often overlooked and is a cheap repair. Every additional pound above atmospheric pressure that the cooling system is under causes the boiling point of the coolant in the system to raise 3 degrees F if memory serves me correctly. So, if the cap is old it will boil at 212 instead of 230 (for example)-and cause the system to overheat--even though everything else in the system is new/operating perfectly. If this is not your problem you may want to check to see if the cooling system itself is, indeed, holding pressure. You can get a gadget that fits on your radiator from any auto parts store to pressurize the system--after you pressurize it...leave it alone for about 20 minutes and see if it maintains pressure. If it doesnt, you have a leak somewhere. Hooah.
Posted on Dec 20, 2008
SOURCE: Radiator removal BMW 316i
hi, the two clamps that secure the radiator have a small slot on the top, if you insert a small screwdriver into the slot and use it as a pry bar you should be able to unclip the holding clamp and it then releases like a hinge.
Posted on Feb 24, 2009
SOURCE: bmw 316i overheating
check if the water is circulating as you might have a blockage in the header tank. this can be checked by opening the radiator cap and check if the water is circulating on top.
Posted on Jul 28, 2009
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