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Passenger seat height adjuster
Andy131
 

Posts: 24
Joined: Feb 2017
Location: UK
Post: #1
Passenger seat height adjuster

Hi Dan,
In common with a lot of Pure owners, the front passenger seat is too low for my wife. I am going to fit the seat height adjuster, and adapt the wiring to suit.
I believe the part number for the motor assembly is LR028225.

Can you please check the part number, and get a price for the motor assembly and the seat switch.

Cheers Andy
01-05-2017 10:25am
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Andy131
 

Posts: 24
Joined: Feb 2017
Location: UK
Post: #2
RE: Passenger seat height adjuster


.pdf  Evoque_pinout.pdf (Size: 4.26 KB / Downloads: 7)
For those that are interested
The passenger seat height motor is LR028227 list price £152.71
The seat switch is YUE500170 £9.18
Both plus VAT
You will also nee a 100mm long piece of 50x50 angle iron as the manual seat base lacks the bracket to mount the motor. You will also need some wire - I used 1mm trirated cable - but any car parts shop should have something that will do. You will also need a couple of 6mm x10mm countersunk screws, and a couple of 6mm x 10mm setscrews a couple of nuts, and half a dozen male and female spade connectors.
Now the good news - no vehicle coding is needed, not need to run power from elsewhere on the vehicle - it's all there under the seat.

First unbolt both the front seats, then disconnect the battery and have a cup of coffee, this will allow the airbag system to discharge.
Remove plugs under drivers seat, remove headrest, and remove seat - you will need this as a reference for the seat you are going to modify, don't be tempted to miss out this step.
Remove the passenger seat in the same manner - note the air bag plug has a red tab that has to be moved before the plug can be disconnected - double clip safety.
The passenger seat has the cantilever system locked, remove the locking bolts either side, and the seat can now be lifted - it might help if you loosen the pivots.
Remove the knob that adjusts the backrest angle - three clips
remove the 2 side brackets 2 x screws each.
Solder 2 wires to the motor terminals and fit male spades to the ends - about 8" long.
Trim the switch so that you can solder the wires on as shown in the attached drawing - wires need to be about 10" (250mm) long, female spades for motor connection, male spades for power.
manufacture a bracket out of the angle iron - trim one side to be 30mm high, drill a hole to avoid the plastic part that protrudes through the base side, drill two 6.5mm holes to suit the existing holes in the seat base, counter sink these to suit your countersunk screws.
Temporarily bolt the bracket to the seat base.
Make sure the seat is all the way up, and the actuator is screwed all the way out - look at the drivers seat.
The new actuator comes with a pivot screw, use this to mount the actuator - note left hand thread.
Now mark the position of the actuator on the angle bracket.
Remove bracket and drill - don't for get to drill two extra holes to suit the dimples on the underside of the actuator.
The two small screws that came with the actuator are self tapping screws! use these to put threads in the actuator holes that you have decided to use.
Put the countersunk screws into the angle bracket, then mount the actuator on the bracket.
Bolt the assembly to the seat base loosely, attach the pivot screw and tighten all bolts/screws.
Using a drill and a Dremel or hand tools cut the hole in the plastic trim to suit the switch - it is already marked out on the underside, and cuts easily with a Stanley knife - be careful with sharp knives.
Fit the switch to the side trim.
Refit the side trims and adjustment knob.
There is a large plug attached to the seat frame, the thick black wire is negative (ground), splice a cable into this and attach an insulated female spade to this - connect to the ground wires on the switch
The mating plug is in the car - splice another wire complete with insulated female spade terminal to the positive wire on this plug - it is opposite the negative wire but has no mating wire in the seat socket - as if LR wanted you to use it Very Happy
Put the seat in the car, connect the plugs, then bolt the seats down.
Then connect the battery.
At this point there is a 50-50 chance that the motor will go down when you press the down button.
For those that didn't fit spade terminals to the motor connections, its time to remove the switch and mount upside down, for those that did fit spade terminals to the motor - just swap the terminals over.
DO NOT be tempted to swap over the positive and negative supply - it will blow the fuse.

Takes about half a day, including 4 cups of coffee and biscuits - takes a whole packet of biscuits obviously.

The point is this is do-able, for less than £200 without modifying the car, so it should have cost LR about a third of that - ruining the ship for a half penny worth of tar comes to mind.
(This post was last modified: 11-06-2017 01:30pm by Andy131.)
04-06-2017 11:23am
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boboborino
 

Posts: 5
Joined: Mar 2017
Location: Canada
Post: #3
RE: Passenger seat height adjuster

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(This post was last modified: 09-06-2017 10:15pm by boboborino.)
09-06-2017 12:01pm
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