Question about 2003 Mini Cooper

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Whinning noise when engine is off

I have a 53 plate mini cooper. earlier today the power steering failed, luckily i was going slow. its making a loud whining noise when turned off and is still doing it 3 hours later. I've started the engine again and the power steering seems to be working. has anyone got any ideas what it could be? I've been told water pump or water pump fan?

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Whinning Causes
The whining noise you hear coming from the power steering pump is one of three things. The first is more of a loud "hush" than a whine; this is the sound of fluid rushing through the bypass valve when you turn the wheel all the way to one side or the other. Sometimes the bypass valve malfunctions or doesn't open all the way, causing pressure to back up in the pump and cause your engine rpm to drop. The second and third causes result from cavitation -- vacuum pockets created behind the rotor's vane blades as a result of extremely high pump action -- or air in the lines.

Posted on Nov 24, 2013

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Posted on Jan 02, 2017

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SOURCE: Power steering stiff - is it the pump ? or the steering rack?

If the wheel binds up or you encounter harder steering in one direction but not the other, it's your rack. Check for leaks, is it from the connecting hose or the rack itself. Can't find it? It's usually on the bottom rear of your engine,a tie rod on either side will attach to your steering knuckle. If your steering is stiff while wheel is centered or at maximum lock it's your pump.

Never worked on a mini in particular. Doing a quick google search and pumps (minus labour) seem to be 350-450$ depending where you go, unless there's some crazy book time i'm unaware of, 1300$ seems pretty steep.

Is there a noise when you turn? If there is, jack up the front end and remove the cap off your power steering resevoir. Slowly turn the wheel from lock to lock, while the engine is running, to bleed any air out of the system
If you replace one or the other, don't forget to do the above step.

Posted on Apr 07, 2009

  • 1071 Answers

SOURCE: 2003 Mini Cooper S Power Steering Runs constantly with key off.

the pump is also a computer may need a new pump

Posted on Jul 21, 2009

  • 7353 Answers

SOURCE: 2004 Mini Cooper S w/intermitten power steering failure

Minis have had power steering problems. I wouild contact a dealer and see if theres any updates or service bulletins.

Posted on Oct 11, 2009

  • 1 Answer

SOURCE: Mini Cooper convertible is overheating, fan contiues after stop

I had this exact same problem -- for about a year and a half! Replaced thermostat, replaced sensor twice, replaced overflow tank, replaced radiator cap, placed a grounding kit on the car in case the problem was electrical ... and was ABOUT to replace thermostat again and then the water pump when a new mechanic suggested we bleed air out of the cooling system. The heater core was PACKED with air, as was the upper hose valve area. Previous mechanic had been using a pressurized fill device to bleed the system and this had just been backing air into the heater core. There are two valves under the hood for bleeding air -- one on the heater core and one on the upper hose. It only takes a few minutes to fix this!

Posted on Dec 14, 2009

  • 1 Answer

SOURCE: 2006 Mini Cooper won't start.

Did you get an answer to this? My 2004 mini cooper did the EXACT same thing this past Saturday July 18th 2010

Posted on Jul 20, 2010

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1 Answer

Whinning when i start engine but not all the time. sometimes it is loud.


Most likely this is power steering pump noise. If it goes away then just leave it alone. Do make sure the fluid is up to level mark on the dipstick for the power steering fluid reservoir.

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CHECK THE POWER STEERING FLUID.iF THE FLUID IS NOT LOW CHECK THE BELT. IF IT IS TIGHT THEN THE OWER SREERING PUMP IS FAILING

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My 52 mini suddenly started making a whining noise, its an automatic, i didnt get any any warning it ciasts fine and reverses but once you put your foot on the accelorater the whining noise slows the car...


Check your transmission fluid level, as recommended in the Owner's Manual. Also, if your car is equipped with power steering, check the fluid level in the power steering reserve.

If all fluids are at recommended levels, see if you can locate the noise. If it is in the engine compartment, try to determine if the noise is coming from any of the serpentine belt pulleys.

Sometimes the bearings on air injector pumps fail in higher-mileage vehicles, first causing a "whining" noise, and ultimately resulting in the serpentine belt "chirping" or squealing on acceleration. Best you can do is make sure all fluids are at recommended levels, then try to pinpoint the source of the whining noise for further diagnosis.

Hope that's helpful!.

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the noise may be because your power steering fluid level is low when cold, as the fluid warms up it expands enough to stop the whine, you should have the leak checked by your favorite mechanic shop

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I lost power steering today, it came back after i


I would start by checking the power steering fluid level. then check the belt to make sure it's ok. Make sure there's no leaks...
P/S pumps don't go out often ,but it may be if every thing else is ok.
Start with the simple stuff first..

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Minis have had power steering problems. I wouild contact a dealer and see if theres any updates or service bulletins.

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Whinning noise


possible power steering pump.

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A constant whizzing


that whining noise is definately your power steering pump. the earlier models eg 2001-2003 just have noisy ones. so they say, if that noise become really excessive; its an early warning that its gonna fail. the newer pumps are much quiter, but i was quoted approx 1200+ CND for a new pump. I have a 2003 cooper, and the whining noise is loud. only once has the steering been really stiff, but i resolve that problem by restarting the vehicle. watch out tho, the power sttering could fail on you while your driving around a corner, and if you dont have both hands on the wheel, you'll go strait.

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