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Old Oct 23rd, 2008, 07:22 PM
ANGLIADELUXE
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Join Date: Oct 2008
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Local Time: 07:09 AM
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Power Steering Pump DIY

My daughter owns a 2001 Cooper with 47k miles. A couple of weeks ago she told me how the steering had "locked", luckily not in a dangerous position and she was able to stop safely. When she restarted the car it performed normally again but was obviously concerned. After she told me I looked on the internet and this site came up and has been a great help. Yes, the pump made a noise when the wheel was turned so I knew a new one was needed. Having seen the prices quoted from Mini or even independant garages I looked into the DIY option. Firstly I bought the Haynes manual to see what was involved and soon realised it was a viable option (the whole job is only 8 sentences). This is my experience of the job. First was to find a pump. I tried a company that reconditioned pumps on exchange but had no luck with them as they never had any any available and not very helpful! Luckily I found GSF who supplied a brand new original equipment pump for not much more than a recon, and it arrived next day. I found the job can be done fairly easily with the front wheels on wheel ramps, a little cramped but safe. Further to the Haynes I would add:- unless you empty the reservoir first be ready for fluid to go everywhere when the hose is disconnected, it runs around the pump then onto the subframe. Also note a new clip is needed as the old one is not reusable. The 2 electrical cables are secured to the pump body with tieclips which will have to be cut and new ones needed for the new pump. Also the tieclip holders will need transfering. With the old pump removed thoroughly clean the location and leave the plugs in the new pump until ready to connect pipe and hose, the smallest bit of dirt or grit could destroy it or shorten its life. The fluid I used was Comma CHF 11S (green) which is recommended for Minis, pour it in slowly then take the weight off the front wheels and turn the steering from lock to lock without the engine running, check the level and then lock to lock with the engine running and the car moving. This should bleed the system easily. The whole job cost under £300.00 including Haynes and fluid and took me about 4 hours. I am not a mechanic but used common sense and followed the book. Lastly please help your pump by not holding the steering wheel on full lock against the stop, only turning the steering wheel when the car is moving (parking etc) and never turn the steering wheel when a front wheel is hard against a kerb. Hope this has been of some help and thanks for the forum.

Last edited by ANGLIADELUXE; Oct 23rd, 2008 at 10:57 PM.
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