Lumbar supports not working?

[Honcho]

Hi. I’ve been playing around with the lumbar supports in my seats but the 4x way lumbar buttons only seem to adjust 2x ways - two of the buttons inflate the same spot, two of the buttons deflate the same spot. This is the same in both of my seats. Is this normal?

 

[kitkat]

Hi. I’ve been playing around with the lumbar supports in my seats but the 4x way lumbar buttons only seem to adjust 2x ways - two of the buttons inflate the same spot, two of the buttons deflate the same spot. This is the same in both of my seats. Is this normal?

Same, why I ditched the stock seats.

 

[Steve24]

I’ve noticed the same thing. I can inflate or deflate the lumbar support, but I can’t make it go up or down so it’s in the position where I actually want it.

Do we think this is a fault (ie. it should be able to go up and down) or it designed this way (I’m which case what’s the point of the four buttons)?

 

[Honcho]

Hmmm, it seems the lumbar support is meant to be adjustable up and down according to the manual. Maybe another common fault?!

 

[Honcho]

Ok. Took the seat back apart. There are two air bladders on top of each other so both inflation buttons will move out the same area which is pointless. I positioned one bladder upside down and higher up the seat (circled red) and put a plastic panel (not pictured) behind it just like the lower one (circled green). Now I have lumbar support adjustment in different areas!

To remove the seatback there are 2X torx screws under the logo and 1x inside the seat back recline lever. The rest is held on with clips.

 

[kitkat]

Ok. Took the seat back apart. There are two air bladders on top of each other so both inflation buttons will move out the same area which is pointless. I positioned one bladder upside down and higher up the seat (circled red) and put a plastic panel (not pictured) behind it just like the lower one (circled green). Now I have lumbar support adjustment in different areas!

To remove the seatback there are 2X torx screws under the logo and 1x inside the seat back recline lever. The rest is held on with clips.

Damn I feel like this needs a tutorial of it's own lol.

 

[Eagle7]

A video showing these in action and how these work would be really helpful for making adjustments. So the lumbar moving up isn't really moving, it's the difference between 2 bladders? One above and one below?

 

[morphious]

I agree with @kitkat , tutorial please!

 

[MR69ALB]

Ok. Took the seat back apart. There are two air bladders on top of each other so both inflation buttons will move out the same area which is pointless. I positioned one bladder upside down and higher up the seat (circled red) and put a plastic panel (not pictured) behind it just like the lower one (circled green). Now I have lumbar support adjustment in different areas!

To remove the seatback there are 2X torx screws under the logo and 1x inside the seat back recline lever. The rest is held on with clips.

Hi Many thanks for this,
my car was getting unbearable to drive as there was a hard object that pressed into my lower middle back causing pain and numbness in my legs.
I removed the rear seat panel (5minutes job) and I immediately found the culprit, the tube that enters the bladder was what i could feel, i removed the two bladders and cut out a square slot in the hard plastic that allowed the tube to lie flush with the face of the lumber area of the seat.
I then placed the lower bladder as far down the back rest area as possible so when inflated it actually supported the lower shallow (arch) of your back, i then placed the second bladder above leaving a 3 inch gap between the two bladders which also is where you need the support in the upper back area.
I did not have any stiff plastic so i used a thick cardboard cut to the same shape of the plastic and again cut a small square section out to to allow the inflation tube to move backwards away from the front of the seat area.
I then took the car out and I immediately felt a massive difference so much so that the seats are now what i would call very comfortable, i was at the point of dropping the dollar on B10 Tillets but now there is absolutely no need.
The whole process from start to finish took me 25 minutes and is the single best mod that anyone could do in my opinion if you’re experiencing pain and an uncomfortable driving experience.
Once again many thanks for the write up as i would never have thought to do this and either purchased aftermarket seats or simply sold the car.