Automotive
Fiat Coupe 20VT (to 2004)
Mini Cooper S (to 2006)
Honda CBR600RR (2005 to 2006)
BMW M3 E46 (2006 to 2007)
Ford Kuga 2.0TDCI 4wd 163 (2016)
BMW X5 X40d E70 (June 2016 to Nov 2017)
VW Golf GTI Edition 30 (Nov 2007 to June 2018)
Mercedes Benz A180 Auto (W176) (Nov 2017 to Aug 2020) VW Golf GTI Edition 35 (June 2018 on)
VW Tiguan Mk2 2.0 TDI 150 DSG RLine (Aug 2020 on)
BMW S1000R SPORT (Oct 2021 on)
seat adjuster would only just move slightly then lock either up or down. seat was in the fully down position (note this made replacement harder) my wife couldnt use the car without a booster cushion.
this would appear to be a fault with the height adjuster.
Context
part that came off my original seat 8313993K
numbers that appear to also match from a web search are
1K0881053A Left Passengers side (nearside)
1K0881054A Right Drivers side (offside)
Understanding how to take the seat apart and replace adjuster
I first reviewed this youtube video , which although its not on a edition 35 leather seat it was very useful
Armed with this knowledge I bought a 2nd hand part from ebay
make sure the car ignition is off if you want to be really careful you could disconnect the battery, but I didnt, as long as you dont switch the ignition on while the airbag etc is disconnected. (if you do , youll need to get VCDS to remove fault codes)
push seat back on runners, remove front bolts (2)
push seat forward on runners, remove rear bolts (2)
tilt seat up at the front and disconnect the airbag/seatbelt/heated seat plugs
lift seat out of car (note you may want to remove headrest to make this easier)
placing seat on its side
remove the backrest tilt turn handle cover (it just clips off)
lift up the height adjuster , using a screwdriver push in the clip in the side hole and pull the adjuster handle off NOTE on my edition 35 seat there was a small bung in the front hole, which you do not need to remove
now we need to remove the base plastic surround. 2 screws at the front , and a small round clip at the back. (I mangled the clip at the back, but you dont see it so its no loss in my opinion) I used a small drill to drill out the centre of the rear clip)
this now gives you access to the height adjuster
(note mine is in the almost fully down position)
now remove the nut on the inside of the adjuster
now we can undo the bolts that hold the adjuster in place.
there are 3 they are hard to get to , and you have very little vertical room (so a ratchet wont fit) and they unscrew from the outside to inside I used a bit and a spanner and did it in very small increments!
NOTE when I did fully undo all 3 screws the adjuster jumped off, and the seat raised to the max height position (its sprung loaded to the full height position) , so be careful
now you just replace the old height adjuster with the replacement part and refit, and do everything in reverse. you dont need to push down on the seat, just fit the adjuster with it at full height.
heres the seat with the adjuster removed and sprung to full height
all fixed , ready to go back in !
All in all, not a difficult job but tricky given the space constraints, and the fact Ive never done it before.
But well chuffed that I now have working height adjustment again for £40 and some of my own time.
At least my wife can use the car now without needing a booster cushion.