Land Rover Discovery: Seating - Overview / Description

Overview

FRONT SEATS

Dependent on vehicle specification, various options are available for the front seats with regard to temperature control and electrical adjustment.

Seats are heated or heated and cooled (climate), with the following adjustment options:

• Manual six-way adjustment
• Electric six-way adjustment
• Electric eight-way adjustment

Six-way adjustments consist of seat slide, seat height and backrest recline.

Eight-way adjustments consist of seat slide, seat height, backrest recline and two-way lumbar adjustment.

The driver and passenger seats on vehicles with electric seats have a 3- channel memory for easy recall of stored position settings for the seat and door mirrors. The controls for memory operation are in the related front door trim panel. Lumbar settings are not included in the memory function.

The driver has an easy entry/exit feature which automatically lowers the driver's seat when the ignition is off (power mode 0) and the driver's door is opened. When the driver's door is closed and the ignition is on (power mode 6) the seat will return to its previous set position. The feature can enabled or disabled using the Instrument Cluster (IC) menu.

Operation of the temperature settings for heated and climate seats is controlled from the Climate / Front Climate / Front Seats menu of the Touch Screen (TS).

SECOND ROW SEATS

Dependent on vehicle specification the following options are available for the second row rear seats:

• Heated seats
• Climate seats
• Recline function
• Manual fold or power fold.

Operation of the temperature settings for heated second row seats is controlled by switches at the rear of the floor console and/or the Climate / Rear Climate / Rear Seats menu of the TS.

ISOFIX fastening points are attached to the second row seat frame to provide secure fastening for compatible child seats in the rear seats.

The second row seats has a 60/40 split which allows for the seating of three persons, or the whole seat or partial seat can be lowered for additional luggage compartment capacity.

THIRD ROW SEATS

Two third row seats can be fitted. These seats can be folded flat to optimize the luggage compartment space or raised to increase the seating capacity to seven persons.

The third row seats are manually operated.

DESCRIPTION

The vehicle seats are each based around a number of fabricated steel pressings. The components are welded, rivetted and bolted together to form the seat frame structure which is secured to the vehicle floorpan. The seat frame varies in design according to specification and if manual or electrical adjustment.

The seat frame is fitted with a fabricated sprung framework in the seat base and backrest. The sprung framework supports the eat foam and increases occupant comfort.

The seat frame provides location for the seat foam for the cushion and backrest. The seat foam is covered with a tailored seat cover.

The front seats are each mounted on rails which allow the seat position to be adjusted forwards or rearwards. The rails are secured to the floor pan with brackets.

The second row and third row (if fitted) seats are also secured to the floorpan. Depending on specification, the second row seats can have a slide and recline feature. If third row seats are fitted, the second row seats fold and slide to allow easy access to the third row seats.

The third row seats are fixed in their position. The seat frame design allows the seat to be folded flat to increase the capacity of the luggage compartment area.

FRONT SEAT ADJUSTMENT - MANUAL SEATS

1. Forward and rearward adjustment
2. Height adjustment
3. Backrest angle adjustment

The manual front seats have three adjustments available.

A lever at the front of the seat releases a latch on the seat rails allowing the seat position to be adjusted in a forward or rearward direction.

A lever on the side of seat allows the seat height to be adjusted. The lever releases a catch and the seat height is spring assisted in the raise position.

The occupants weight against the spring provides controlled lowering the seat to the required position.

A rotary knob on the side of the seat provides for adjustment of the seat backrest position.

FRONT SEAT ADJUSTMENT - ELECTRIC SEATS

1. Lumbar adjustment
2. Seat backrest recline adjustment
3. Seat cushion height adjustment
4. Seat forward and rearward adjustment
5. Seat cushion tilt adjustment

The electric seats can be operated when the smart key has been recognised by the vehicle and vehicle is in accessory power mode 4.

Each seat has four electric motors; seat backrest recline motor, seat forward/rearward motor, seat height motor and a seat cushion tilt motor.

The seat backrest recline motor is located on the left side of the backrest frame. The motor is secured to the frame with two screws.

The backrest recline motor rotates a worm drive shaft. The worm drive shaft acts on a gear attached to the seat cushion frame to raise or lower the backrest.

Operation of the backrest angle adjustment switch changes the polarity of the power supply and ground to the seat backrest recline motor dependent on which direction the switch is operated.

Power is supplied to the switch from a fuse in the Central Junction Box.

Power is supplied direct from the primary battery regardless of power mode state.

On vehicles without memory seats, the switches are connected directly to the applicable seat motor.

On vehicles with memory seats, the seat switchpack is connected the driver or passenger seat module with a Local Interconnect Network (LIN) bus connection. switch operation is sensed by the module which operates the required seat motor accordingly.

SEAT MODULES - VEHICLES WITH MEMORY SEATS ONLY

1. Seat module

On vehicles with seat memory, a seat module is located on the underside of the seat cushion frame on both the driver's and passenger's seats. The module is located towards the front of the seat cushion, behind a plastic trim.

The driver and passenger seat modules are connected by hardwired connections to the seat adjustment motors. The seat switchpacks are connected to the seat module with a Local Interconnect Network (LIN) bus.

The seat module contains a non-volatile Erasable Programmable Read Only Memory (EPROM). The seat module monitors the seat positions and stores information provided by Hall sensors within the seat adjustment motors. All seat memory values and current seat adjustment motor positions are stored in the EPROM.

If power is lost to the seat module, when power is restored the current seat adjustment motor positions are recalled from the EPROM and adopted as the current positions. This allows the relative memory positions to be retained without any need to re-calibrate the seat module.

Each seat module can be 'flashed' for service updates or interrogated using Land Rover approved diagnostic equipment.

Up to 3 different seat positions can be stored in the seat module. Seat positions are stored in memory by pressing the memory switch (M), and then 1, 2, or 3 memory store switches within 5 seconds. The memory switches are located on the door trim panel. The seat memory switchpack memory switches allow the driver to control the memory storage and recall operations for the driver's seat and door mirror glass positions. The passenger seat memory switchpack stores only the seat positions and does not control the exterior door mirror glass position. The driver's seat memory switchpack is connected to the driver's door module by two hardwired connections for door mirror glass position recall.

The switchpack switches are non-latching, momentary action switches. The seat lumbar adjustment is not stored by the EPROM and therefore cannot be recalled via a memory switch position selection.

The seat module provides the following selectable functions:

• Seat memory recall
• Powerfold door mirrors memory recall (driver's seat module only)
• Seat adjustment via seat switchpack.

SECOND ROW SEAT RECLINE ADJUSTMENT

The second row seat has a manual recline feature.

A lever at the side of the seat cushion releases a catch when pulled and allows the seat to be reclined backwards. The lever also releases the seat from the reclined position.

SECOND ROW SEAT FOLDED POSITION - FIXED SEAT (5 SEAT VEHICLE)

1. Seat cushion raise strap
2. Lower head restraint
3. Backrest release and fold

The rear seat can be folded flat to increase the luggage compartment area.

A strap at the rear of the seat cushion releases the seat cushion and allows it to be folded to a vertical position.

The head restraints are lowered using a button to release the head restraint which can pushed to its fully lowered position.

Each seat has a release catch that releases the seat backrest. When the catch is operated, the seat backrest can be folded to a horizontal position.

SECOND ROW SEAT FOLDED POSITION

The 60/40 split rear seat can be fully or partially folded. Partial folding allows large loads to be carried in the luggage compartment while retaining seating for passengers.

A lever at the side of the seat cushion is lifted to release the seat backrest.

The backrest is then lowered into a horizontal position.

1. Second row seats backrest release strap or electric backrest release switches
2. Backrest to folded position

The second row seat can also be folded by the third row seat passengers or from the luggage compartment.

A strap on the rear of each second row seat backrest is pulled to release the locking mechanism. The seat can them be lowered to the horizontal position.

On vehicles with electric seat backrest release fitted, the applicable switch in the right side of the luggage compartment can be operated to release the locking mechanism. The seat backrest can then be lowered to the horizontal position.

SECOND ROW SEAT ACCESS POSITION - SLIDING SEAT (7 SEAT VEHICLE)

1. Backrest release lever
2. Seat slide release lever

On vehicles with third row seats, the second row seats have an access position to allow easy entry and exit for the third row seat passengers.

A lever on the outside upper edge of the seat backrest is pulled to release the backrest to a tilted position. A lever at the front of the seat cushion is pulled to slide the second row seat forwards.

When normal seating is required, the second row seat is moved to its fixed position along with the seat backrest.

Seating - Component Location - Manual front Seat AdjustmentThird Row Seats

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