Question about BMW 528

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Good evening, I have a 1998 BMW 528I and it continues to overheat after replacing radiator, fan clutch, fan blade, waterpump, thermostat and thermostat housing. Please help

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Could be a head gasket. If it got hot enough, it could have warped the head. Costs from $1900 - $3000.

Posted on Oct 15, 2009

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I wanna know how to replace a water pump on my 1998 BMW 528i


You need to drain radiator, pull fan shroud, pull fan/fan clutch, reeve belts and pulley then unbolt waterpump. You do beed special tools for fan clutch and pulley removal. BavAuto.com or Pelican parts .com have parts, tools and good info on how to do the job successfully.

Mar 31, 2011 | 2000 BMW 5 Series

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My 1996 z3 is overheating while I have replaced water pump thermostat, and radiator, car still overheats


Check the electric fan(s) if equipped. If it has a belt driven fan, replace the fan clutch. Also rechecking the thermostat is a good idea too, they are sometimes bad right off the shelf.

Jan 09, 2011 | 1996 BMW 318

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I have a 1994 318i convertible. It continues to overheat. I have changed out the thermostat, The radiator has been checked at a shop and found good, I changed the waterpump also. The electric cooling fan...


It's possible that you have a bad head gasket. Have your cooling system pressure tested, see if it holds roughly 18lbs of pressure. Could also be air in system, did you bleed system when waterpump and thermostat were installed?

Jan 05, 2011 | 1997 BMW 318

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My 740 1998 BMW overheats? I have replaced 3 blown out radiators, 2 thermostats, radiator sensor, changed coolant, and radiators cap. What could it be the problem?


3 blown out radiators....define this. My accord has 224,000 miles on it, same radiator, same clutch. And the beemer blows radiators? Makes 'em explode? Can't imagine anyone making a radiator that blows up all the time. You keep buying the same model?

Anyway, check: air gap in system, bleed the system while it heats up. Water pump. don't see it being replaced. the older ones had plastic impellers. is the auxillary fan working? It should come on all the time when the A/C is on. Clutch on belt driven fan ok? put in a 12 degree cooler thermostat and drill two 3/16" holes 180 degrees opposite each other.

Blown head gasket or two can cause overheating. Bad timing. did you change a good or bad radiator sensor? how'd you test it to determine it was bad? Don't just replace parts, determine they're bad. Replace enough parts and $14,000 later you should be ok.

Jul 17, 2010 | 1998 BMW 7 Series

1 Answer

I have a 1993 BMW 325i, I am having cooling in which the car overheats profusely when running for a little while. I just replaced the thermostat and I am getting ready to go check the waterpump to see if...


U may have a faulty fan clutch,If the fan is turning very slowly while the engine is running its faulty.Also you may have a restriction in the radiator,one way to check the radiator is to remove the hoses and flush water through it to see if it flows straight through.A common issue is the fan clutch be sure to check it first.

Feb 03, 2010 | 1993 BMW 3 Series

2 Answers

My BMW 330i is still running hot after replacing the thermostat and housing, fan, fan clutch, auxiliary fan and flushing the radiator any suggestions as to why?


It could be several reasons...1. make sure you dont have to bleed the coolant system, on some cars you have too, because there is air in the system, and the car will overheat..2. Your waterpump maybe bad also..3. Double check your coolant temp sensor, and or coolant temp switch..maybe faulty..4. Check your radiator cap...seal could be bad, and not sealing correctly...Question..How long does it take before it overheats...and are you getting any white or grey smoke out of the tailpipe? If so, then your head gasket is blown...Goodluck

Dec 04, 2009 | 2004 BMW 3 Series

1 Answer

Overheating problem. I have had my t-stat, belts, hoses, water pump, radiator shroud, fan shroud, fan pulley, fan bearing, and fan clutch replanced on my 97 BMW 528I. My car is fine for a while then it...


hi
has it been bled correctly since all that work? Sounds like an air lock. Raise the front of the car as high as possible and chock rear wheels. Open bonnet, take off header tank cap and start the car. This helps any trapped air get to surface easier. No harm in also squeezing the hoses for a bit.

Oct 16, 2009 | BMW 528 Cars & Trucks

2 Answers

Need to replace leaking radiator on 1999 bmw 528i


You need the special tool that will hold the water pump pulley and a 32mm open ended wrench. Ebay has the set for around $20.
The thread is the opposite than normal too!
Easy to take it all off with the right tools. 15 minutes max.

Sep 22, 2009 | 1999 BMW 5 Series

1 Answer

BMW 1998 528I major overheating issues.


Radiators leak and break easily on the 528i. Also, there are bleed screws that are plastic that can sheer off and create a leak on the two main hoses.
Or, the guy who did your head gasket didn't check it for cracks, so it's leaking into the cylinder chamber and burning out.

Sep 21, 2009 | 1998 BMW 5 Series

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