Question about 2001 BMW 5 Series

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How do you change the radiator in 2002 BMW 530 I

Radiator replacement

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I believe the upper tie bar can be unbolted and laid over the side because your hood latch will still be connected and then you should be able to unbolt everything and pull it straight up and you may have to take your lower shields off under the bumper

Posted on Mar 21, 2009

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I have a Bmw C318 and when I am stuck in traffic jam my radiator fan is not running enough to cool the engine and i changed the thermostat and the radiator fan new but remained the same.And when i start...

Check the temp. sensor with a digital voltmeter.never use a test light on a comuterized car.should read same voltage on both terminals when fan energized. Highly suspect coolant temp. sensor @ radiator.

Nov 08, 2013 | BMW Cars & Trucks

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Smoke radiator


Aug 30, 2013 | BMW X5 Series Cars & Trucks

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Not the radiator is your problem. loosing coolant without leak the thermostat is the problem.
Check your engine thermostat if it is working and if it is not,replace.
it is located at right side of the radiator which connected to the engine, follow the radiator hose.

May 10, 2012 | 2000 BMW 328i

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Just replaced radiator hose for 2002 BMW X5 4.4 v8 because old one came loose and all fluid leaked out. Refilled radiator with 21/2 gallons of antifreeze. Now when I turn on the car the temp gauge goes all...

Which hose came off? If it was the top radiator hose, is the nipple on the radiator still intact? The failure mode for these plastic radiators is that the top hose nipple crumbles from the inside and blows off.
Did you bleed the cooling system through the bleed screw next to the fill point on the radiator? Normally, when these cars overheat after coolant is changed, it is because there is air in the system. You need to turn on the key and turn the heater all the way up so the heater valve opens, then add coolant to the reservoir until pure water comes out the bleed screw hole. The reservoir will appear to be overfilled, but any excess coolant will push out the first time you drive the car (oops, is EPA listening?)
These cars do tend to loose thermostats more often than other cars for some reason. The way to check that without taking it apart is to pull the top radiator hose off at the radiator and put it over a bucket, and start the car. (do this only after you have bled all the air out of the system) About the time the temperature gauge starts to climb, water should start to trickle out the top radiator hose.
If it appears to be bad, after you replace it, boil it in a pan of water to see if it opens. If it does not open in boiling water, you know that you found and fixed your problem.

Feb 06, 2011 | BMW X5 Series Cars & Trucks

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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

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Headgasket must be checked. and check that you have enough radiator fluid. Also check for warped/cracked cylinder head.

Nov 07, 2009 | 1988 BMW 7 Series

1 Answer

When do i replace the radiator in my 1999 BMW 328i?

If the temperature is normal, you have serviced it regularly, don't have any leaks and the radiator looks to be in good shape on the outside, I see no reason to be replacing it. I've had many radiators last well over 200k without problems. It's not a bad idea to replace old worn items but if you begin changing everything else on your vehicle that's old, where do you stop?

Apr 03, 2009 | 1999 BMW 3 Series

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When do i replace the radiator in my 1999 BMW 328i? Thank you

there is no set mileage at which a radiator is replaced, the coolant should be replaced every 100,000 miles though.

Apr 03, 2009 | 1999 BMW 3 Series

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I have oil in radiator ,transmission slips

Does the oil in the radiator look reddish? likely it does...You most likely have a failure inside the radiator where the trans cooler coil runs through it. Replace radiator and have trans fluid changed and flushed. If slipping continues trans will need a rebuild. (hope not)

Apr 01, 2009 | 2000 BMW 3 Series

1 Answer

Coolant flush

look on the radiator next to the top hose connection, also on the thermostat housing there should be a small screw, bleed the thermostat housing first then the radiator

Mar 20, 2009 | 2002 BMW 7 Series

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