Constant top problem on 03

M

Mike W

Member
I just had the 2nd new top pump in 18 months installed, and the problem isn't fixed. In June I brought the car in because the top went into a free fall the last 1/3 of the down operation. The shop replaced a mico switch and after 3-4 cycles the top returned to the free fall action. The shop then said I needed a new pump. That was installed last month. The 3rd time I operated the top, it began going into a free fall for the last 1/3 of the retraction again. The shop claims no - the system is not low on fluid, yes - the lines were bled. A third party said new pumps ususally fail because of incorrect wiring. Has anyone had a problem with what I describe as a free fall drop, and if so what was the remedy. Is it likely I got 2 defective pumps from BMW? Also, will that free falling damage the system if allowed to continue? I appreciate any help as I have now put more than $3000 trying to get the top to function as it should and it is still not right.
 
Doesn't sound right. I wonder If they've not installed it all correctly. I'd be tempted to ask them to check all wiring and the fittings to make sure they've got it right as it clearly isn't right at the moment.
 
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