Z3 Seats Moves forward under braking

Hi all. I am a new member and recently bought a Z3 in absolutely mint condition.

The only issue I have at the moment and it seems to be a general issue with the Z3 cars being a bit older is that the Bushes on the seat Kebabs are worn and needs replacing. I looked at this thread: https://zroadster.org/articles/how-to-fix-your-bmw-z3-rocking-seats-changing-the-bushes-bushings.51/
and although the author rates this as a 3/10 I am way too nervous to try and attempt this myself. Is there any members that can or know of someone who has done this kind of repair and replacement on a current Z3 Roadster or Coupe?

Much appreciated

Christo
 

AudiDriver

Active member
Have you tried just giving the rails a good lube (LM grease)? Sometimes it is the sensation of a sudden movement rather than the movement itself which is annoying. And when you lube them to avoid any stiction the problem may disappear by itself.

It certainly resolved my issue on the E36 seats.


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AudiDriver said:
Have you tried just giving the rails a good lube (LM grease)? Sometimes it is the sensation of a sudden movement rather than the movement itself which is annoying. And when you lube them to avoid any stiction the problem may disappear by itself.

It certainly resolved my issue on the E36 seats.


Sent from my iPhone using Tapatalk

no I have not. the issue here is that the movement itself is quite pronounced rather than just a jolt. even sitting stationary in the car you can feel the forward and backward movement/rocking of the chair on the rails and it's driving me crazy.

It feels like I need to stop the motion from happening at all rather than just a smoothing of it.

thanks for the suggestion though.
 

Peter@AEW

BMWFanatics Advertiser
Official Advertiser
justplainchristo said:
Hi all. I am a new member and recently bought a Z3 in absolutely mint condition.

The only issue I have at the moment and it seems to be a general issue with the Z3 cars being a bit older is that the Bushes on the seat Kebabs are worn and needs replacing. I looked at this thread: https://zroadster.org/articles/how-to-fix-your-bmw-z3-rocking-seats-changing-the-bushes-bushings.51/
and although the author rates this as a 3/10 I am way too nervous to try and attempt this myself. Is there any members that can or know of someone who has done this kind of repair and replacement on a current Z3 Roadster or Coupe?

Much appreciated

Christo

It by no means is a 3/10

It is tedious and those seats are heavy.

Ask me how I know
 

Afterburner

Member
Peter@AEW said:
It by no means is a 3/10

It is tedious and those seats are heavy.

Ask me how I know

I agree! Its no easy task. But perseverance can get you there with a great gluts and hams workout.

I saved costs by buying nylon washers and cutting them to size as below:
img-20151001-00502_985x739_8587120175.jpg

img-20151001-00503_985x739_7419284651.jpg
 
thanks Afterburner. Looks like you did a really good job.

My Whalen busches are on it's way and should have them within the next couple of weeks barring too much hold up at customs.

JayDrft was so kind to offer his help in fitting them so once we have it I will make it so.

Christo
 
Hi everyone

I wanted to post an update to the thread:

I received my Whalen Bushes after organizing someone to do Mule duty coming from the States last week. I just could not wait to get those frikken seats fixed so the first opportunity I had was yesterday afternoon.

I pretty much memorized this video:

and felt pretty confident that I could with some blood sweat and tears be able to get it done.

The total cost of the excercise was:
1. $30 for the Bushes from Whalen
2. R260 for the T50 Torque Bit. I had to buy a Bit set to get the T50 as I could not find it as a loose bit.
3. R390 for a torque wrench to fit my T50 bit.

and here we go!

As In the video I loosened the Seatbelt bolt but this as I later found out was actually not necessary and was one of the most tedious tasks to get it screwed back on.
When finished loosening the seat and wanted to start unplugging my socket, it seemed there is a specific wire which forms part of the actual unit and did not plug out like the other ones on the unit which kind of stopped me in my tracks. It was was actually a blessing in disguise as I just threw a blanked over the center console and basically laid the front end on the seat with the under carriage facing me exposing all the bits I needed without actually taking the seat out of the car.

Tip number 1. Take out 1 rail at a time and fix it then replacing it.
Tip number 2. Make sure you put something under the seat like a towel where it lays on the carpet as it might indent or damage the carpet with the ends of the railing.
Tip number 3. Put something soft over the steering wheel as you might scrape the steering wheel when actually working on the driver side seat.

It does take some practice to get the rods in and out of the railing shell and to correctly fit it. I think I can now do it in my sleep almost.

It was as if each railing was just that slightly different with it's own set of challenges. very weird and interesting all together.

Once all is cleaned out and the bushes replaced (it was actually the easiest part of the whole exercise) replace the rods and make sure all lines up by using the inspection hole as per the video.

Tip number 4. Don't try and keep the small piece of metal rod inserted into the big rods when lowering it into the railing shell. Rather just insert it before in it's seating at the bottom and connect the dots using a screw driver in the inspection hole.

1st seat took around 2.5 hours after I made the mistake of switching the railing rods around :(

2nd seat took me less than an hour.

Got it all screwed back together and WOW!!!! what a difference it makes to the whole driving experience and the car as a whole.

It is seriously the best money and time spent ever!

Contact me if you want to attempt it yourself and let me know if you want to buy some bushes from Whalen. I am leaving for the US this coming Sunday the 26th of Feb 2017 and will be able to bring some back. Inbox me and we can work out some logistics.

Tip number 5. Don't try and order this stuff from South Africa. I still have a set somewhere between the US and SA and no one but no one can tell you where it is or whether it will ever arrive.

Christo
 
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