Question about 1999 BMW Z3

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My power seats in the passenger side of my 1999 z3 is not working

I was wondering how to repair my power seat in my z3 bmw

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  • Dain Epperson
    Dain Epperson May 11, 2010

    what needs repaired? Are you replacing the whole seat? the electric motor? the switch? airbag sensor? there are lots of parts in a simple seat...

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: BMW Z3 SPORTS CAR 1998

its the dreaded seat rock syndrome, plenty of fixes on the forums, basically you have to replace spacers in set drive mechanism. I did with the help of a friend after ordring bushes and it was quite easy.

Posted on Nov 28, 2008

Doktir
  • 55 Answers

SOURCE: Z3 seat rock repair

There is a ratchet system on the slide rail below the seat, sometimes the teeth on the ratchet wear out, especially when adjusted often. The hook holder that actually clamps onto those teeth, may be broken off or worn out aswell, and either of these will need replacement. Some models also come with air-suspension and a locking device, the spring on this device may be missing or worn, this will also mean a new one is neccesary for repair.

BUT... If you don't want to fork out, and are going to leave the seat in one position for a long time, may I suggest simply welding the rail to the seat, this is a permanent thing and would require you to throw away the entire sliding system, if you ever need to adjust the seat. Hope this helps you. Good luck!

Posted on Mar 12, 2009

  • 3 Answers

SOURCE: bmw z3 passenger seat goes forward backwards but

It can also be theseat motor since there is seperate motors for up/down & forward/backwards. You can test the switch to see if you are getting power to the connector on the motor by using a multimeter.

If there is power to the motor, I would remove the motor and give it a tap on the ground. Alot of the time the motor is fine, and the tap will free it up again. If it doesn't work you may be up for a new seat motor. Giving mine a tap solved the issue with mine.

Posted on Nov 05, 2009

  • 1 Answer

SOURCE: BMW X5- power wheel, power seats

I have the same problem. Seat and steering column just stopped working. Passenger side normal. No fuse for these components. With so many postings witht he same problem there has to be a defective or worn out source. Please post if you find a solution!

Posted on Feb 18, 2010

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1 Answer

Passenger seat won't lock in place


The adjusting lever for seat position is not locking into place. On the bottom of seat are runners on each side with holes in them that the adjusting lever tabs will lock in and hold seat in place. The seat slides on the runners if those tabs are raised. There is also a connecting wire or rod from the lever to the other side of seat so when lever is pulled up, tabs on both runners are raised for seat to slide. Something is keeping the tabs from locking into the holes on the runners in your car. Maybe the adjusting lever is broken somewhere, or the wire/rod came loose, or the lever is just dry and sticky and needs a shot of WD40 to loosen it up. If you can't see it and fix it with seat in place, then pull the seat back off for the repair. Good luck. Post back if my explanatiopn is not clear or you still need help.

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Crash sensor under the passenger seat of 1999 Z3 roadster needs replacement. The local dealer says it cost $1,000 for the part and 3 weeks delivery from Germany. Are they available anywhere in Australia...


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Bmw z3 passenger seat goes forward backwards but


It can also be theseat motor since there is seperate motors for up/down & forward/backwards. You can test the switch to see if you are getting power to the connector on the motor by using a multimeter.

If there is power to the motor, I would remove the motor and give it a tap on the ground. Alot of the time the motor is fine, and the tap will free it up again. If it doesn't work you may be up for a new seat motor. Giving mine a tap solved the issue with mine.

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There are 4 bolts holding all car seats if you can get at least 2 off than you should be alright as long as you can squees a hacksaw or dremel to be able to cut along the seat rail that will remove the seat so you have access to the other 2.

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I got the same problem whit the Passenger Seat. After perform a Diagnosis to the Electrical system and confirm every thing was right (fuses and voltage on the harness going to the seat) , I had decided to remove the Seat, then disassemble the side panel where the Activation switch is located and I have found the problem was the button was worn.
The easiest solution could be replace the switch , in my case I was able to repair the button by opening it putting some Tin solder on one of the internal traces and replacing one damaged micro spring.
I would recommend to replace the switch.
Joe

Aug 15, 2008 | 1998 BMW Z3 Roadster

1 Answer

BMW Z3 SPORTS CAR 1998


its the dreaded seat rock syndrome, plenty of fixes on the forums, basically you have to replace spacers in set drive mechanism. I did with the help of a friend after ordring bushes and it was quite easy.

Jun 03, 2008 | 1998 BMW Z3 Roadster

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