Question about BMW 325

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Re: air bubble in my bmw 325 xi coolant. Is it harmful to the engine to drive it about 147 miles back home before I get it bled out?

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BMWs are very sensitive to overheating, can get very expensive. Bleeding the radiator takes a minute of two, A straight blade screwdriver, just slowly unscrew plastic screw until anti freeze begins to stream out.

Posted on Jan 02, 2011


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2002 Grand Prix, very hard to get started. When it does start air coming back through the raidiotor (apparently) cause the fluid in the over-flow tank to bubble dramatically. This all started yesterday,...

it looks like coolant has been lost and possible the system needs to be bled of air. the bubbling is air returning to the header tank. ensure the system is topped up to the correct level before starting the engine. Ensure that coolant has not got into the ignition system which may be reason why it is hard to start. if so use and water replelent spray to get rid of it and better electrical connnection. Once started check the coolent level and see if it is going down if so let the engine run for a while and then switch off. if needed top up the coolant level futher but only when the engine has cooled. Once this is resovled take the car for a good drive to help heat from the engine to dry out any water that might still be in there.

Oct 31, 2013 | 2002 Pontiac Grand Prix

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Bmw heater

i see answers to other questions here except the question asked about no heat in a 325 xi 2001 blower works great fluid is full no leaks,fuses are fine,get a lil heat while at a stand still but as soon as you drive cold air only temp on max 91, engine temp right in the middle takes about 8 mins for temp gauge to reach the middle can anyone help with this..PLEASE !!!!!!

Jan 09, 2013 | 2001 BMW 3 Series

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Air conditioning not working on BMW 325 XI

with a/c on, with condenser fan must be running to remove heat from condenser, check and make sure fan is running

Jul 15, 2012 | 2004 BMW 3 Series

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I have a 2002 325i BMW with 85K miles. It's had temp gauge problems for quite a while but until recently had no signs of real overheating. (I drive her only rarely though).The gauge would stay...

To verify if cooling system damage exists.
Drain the engine coolant.
Remove the intake manifold.
Remove the plastic heater core feed pipe.(located under the intake manifold).
If the coolant pipe cannot be removed after removing securing hardware, the VANOS banjo bolt must also be removed thus allowing additional clearance needed to remove the pipe.
Visually inspect the front (inside) of the coolant pipe.
If the plastic on the inside of the coolant pipe shows no signs of deterioration (smooth surface) the engine should be reassembled using new gaskets and O rings where necessary.
If the plastic on the inside of the coolant pipe shows signs of deteriorated (worn away, bubbling, ect) this is an indication that the engine has been severely overheated and these components must be replaced.....Cylinder head gasket,all coolant hoses,all plastic coolant pipes,coolant expansion tank and cap, radiator, water pump, thermostat, oil and filter....

Hope this is some help to you ??

Jul 07, 2011 | 2001 BMW 325

1 Answer

My 94 acura legend ls is over heating and blowing out alot of smoke at times cant drive it more then 5 miles sometime not at all the fans are working fine the coolent is bled no air bubbles and the...

Probably a blown head gasket. If excessive steam is coming out of tail pipe and coolant is disappearing that would be my guess. Also engine compression can leak by head gasket into cooling system causing water to blow out of radiator. Make sure though when you purged air out of block you thought about it having to fill heater core. It could be trapped air in system. I used to take temp sensor out and fill block until coolant came out of it.

Feb 15, 2011 | 1994 Acura Legend

1 Answer

My 02 BMW is still registering hot. Took it to BMW

I would remove the water pump and inspect it.These cars have a problem with the impeller on the inside coming loose.

Other than that I would also do some teste to make sure you do not have a head gasket issue.

Feb 04, 2010 | 2004 BMW 3 Series

3 Answers

1998 bmw Z3 running hot replaced thermostat and continues to run hot replaced aluminum engine 10 months ago,with cast iron engine with 68,000 miles

When the car is completely cool,check the electric fan(s) for smooth rotation.

Clean/check/change the thermo sensor,contact and wire.


Excavate air pocket in coolant system / check for head gasket leak

This test will kill two birds with one stone.




You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!


Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .

Top of the coolant reserve tank

Let it ran for 10-15 minutes.

Monitor for air pockets escaping from coolant reserve tank.

Small amount of bubbles is OK at 1-5 minute mark

After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.

If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.

Give the thermostat host few gentle taps.

If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.

Let engine cold down and top off coolant reserve tank.

Start monitor for coolant lost


A coolant flush is require every 2 years or 24,000 miles.

I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.

Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.

Please post more information by clicking the comment link on the top right corner.

DON'T FORGET to RATE ME if my tip is helpful to you!

Oct 03, 2009 | BMW Z3 Cars & Trucks

1 Answer

Hi. I have 2001 BMW 325 xi. my car is quattro. How

Do you have an owners manual for this BMW? It may help to explain this if you read about the quattro system there. How ever this system probably transfers power to the wheels that have the best traction. The DSC button stands for Dynamic Stability Control and may interact with your quattro system. I would not recommend turning this off in a hard corner on Ice, unless of course you enjoy spinning out of control into a tree. Again find and read your owners manual the germans are very precise people and explain all the features of your car in great detail.


Jul 07, 2009 | 2003 BMW 325

1 Answer

2003 325 xi bmw

You would have to acess the hood latch from underneath the car up through the grill area. Also if the cable broke off flush, you can cut back the liner and use pliers on the exposed cable. A new cable would come with the liner and all anyway.

Oct 20, 2008 | 2003 BMW 325

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