Bmw 320d e90 2006 manual seat height adjustment not working when lever pulled seat does not raise or lower

I would need to remove the seat and inspect the mechanism to see what is causing this. I suggest you seek professional help. Any parts that are needed will need to come from the dealer.

Hi
There should be a set of levers on the right hand side (left hand if you are on the left). one of these will move the seat back and forth, one will raise and lower and one will move the seat back.
Some of these rise and fall levers are a "pump action style" where you push down to get the level or pull up.
Other type will raise the seat fully either up or down. Its on a cam.
I have had these seize before and have had to replace the mechanism.
Cheers
Roger

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.

it might help, worth a shot.

Change switch first checking all contacts(wires to clips)

you can change to manual operation by pulling the releasse lever under the l/r seat and this deactivate the moters the roof will open and close manual but you will have to comvert the rear lid when open to secuer the resar lid when the roof is open and this to hold it down.two ruber hold downs like you would use a a beash buggy bonnet

there are 2 cables that come out of the motor that operates that feture. Over time the outsdie tube of the cable streaches, causing the cable that turns inside, to come out of the transmission is drives. One way to fix this is to remove this cable and shoren the outside tube by cutting it, and then re-insall back into the transmission. This is a 50/50 chance repair. The correct way to cure this issue is to replace the lower seat frame. $$$

I had the same thing happen! Pushed all the way down the rear back locks, to unlock push the lever in and press DOWN on the seat to release the lock.
I had to check my manual, I tried to lift it 'case it made sense but nope - you have to press down while pushing the lever.

If you have electric seats push the smaller of the two buttons/levers up and it should raise the seat.

Passenger seats are usually manually operated from a latch or bar under the front of the seat. the seat back should have a lever between the door and edge of seat to make adjustment pull up on lever push back on seatback.