Land Rover Defender: Seats - [+] 7 Seat Configuration - Description

FRONT ROW SEAT - SEMI POWERED MANUAL ADJUSTMENT

NOTE: Right installation is shown, left installation is similar.

1. Head restraint - Manual
2. Seat backrest recline motor
3. Seat forward/rearward lever
4. Front seat switchpack
5. Seat height adjustment lever
6. Air reservoir valve block

The seat frame is installed with a fabricated sprung framework in the seat base and backrest. The sprung framework supports the seat 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 row seat are each installed on rails which allow the seat position to be adjusted forward or rearward. The rails are secured to the floorpan with brackets and screws.

The partial electric front row seats have 3 manual adjustments available. On vehicles without seat memory, the control switches are connected directly to the seat backrest recline motor and 4-way lumbar support.

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 backrest recline motor on the side of the seat provides for adjustment of the seat backrest position.

The 4-way lumbar support provides lumbar adjustment for the seat backrest. The air reservoir valve block is attached to the back side of the lumbar support.

FRONT ROW SEAT - MANUAL ADJUSTMENT - SEAT SWITCHPACK

NOTE: Right installation is shown, left installation is similar.

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

FRONT ROW SEAT - POWER MEMORY SEAT

NOTE: Right installation is shown, left installation is similar.

1. Lumbar air pump
2. Head restraint - Manual
3. Seat backrest recline motor
4. ISOFIX on passenger side - 110 memory seats only (if equipped)
5. Seat cushion tilt motor
6. Seat cushion height motor
7. Seat forward/rearward motor
8. Front seat switchpack
9. Air reservoir valve block
10. Inflatable bolsters

Electric motors are used to provide adjustment for the following:

• Seat forward/rearward adjustment
• Seat height
• Backrest recline
• Cushion tilt.

All of the seat adjustments are controlled from the seat switchpack on the outside of the seat cushion. The control switches are connected to the adjustment motors through the DSM and/or the PSM.

The seat forward/rearward motor is an integral component of the cushion frame. The motor drives a gear on a worm drive lead screw, which is integral with the floor rail. The lead screw has a stop at each end to limit the forward and rearward seat movement.

The seat height motor is located below the seat. The motor drives a gear on a lead screw. The lead screw moves a lever mechanism, which raises or lowers the seat cushion.

The backrest recline motor is located in the backrest frame. The recline motor rotates a shaft connected to the backrest frame, which changes the angle of the backrest.

The cushion tilt motor is located below the seat. The cushion tilt motor drives a gear on a lead screw to extend or to raise the front of the seat cushion.

On vehicles with seat memory function each adjustment motor contains a Hall effect position sensor. The sensors provide position feedback signals to the seat modules which are used for memory store and recall operation.

FRONT ROW SEAT - ELECTRIC ADJUSTMENT

NOTE: Example is shown, other variant is similar.

1. Bolster inflate and deflate
2. Lumbar support
3. Seatback angle
4. Seat height
5. Forward and rearward position
6. Cushion tilt

SEAT MODULES

NOTE: Right installation is shown, left installation is similar.

1. DSM with seat memory
2. PSM with seat memory

The seat modules are located under the driver and passenger seats, rely upon a number of inputs to control various outputs. Operation of the driver seat is controlled by the DSM. Operation of the passenger seat is controlled by the PSM.

Depending on vehicle configuration, the DSM controls the following functions:

• Driver seat adjustment
• Driver seat lumbar function
• Driver seat memory store and recall (if equipped).

Depending on vehicle configuration, the PSM controls the following functions:

• Passenger seat adjustment
• Passenger seat lumbar function
• Passenger seat memory store and recall (if equipped).

The DSM and the PSM have a fused permanent power supply from the Passenger Junction Box (PJB) and the Rear Junction Box. The driver/passenger seat switchpack sends operating requests to the PSM and DSM through Local Interconnect Network (LIN) connection.

The DSM and the PSM are connected to the High Speed (HS) Controller Area Network (CAN) body systems bus. The system allows the DSM to monitor the position of the door mirrors when storing and recalling memory settings. The signals are provided by the DDM and the PDM. The signals for the memory store and recall functions are received from the BCM/ GWM through the HS CAN body systems bus. The HS CAN body systems bus connection also allows the DSM and the PSM to transmit memory information. The confirmation chimes and display messages on the IPC message center are activated.

4-WAY LUMBAR SUPPORT WITH 2-WAY BOLSTER

NOTE: Right installation is shown, left installation is similar.

1. Inflatable bolsters
2. Air pump
3. Lumbar solenoid valve block

Lumbar adjustment is provided by a lumbar support and air pump installed in the backrest. The lumbar assembly consists of an inflatable cushion with dual air cells. A solenoid valve controls the air pump for the inflation or deflation of the lumbar cushion.

The 4-way lumbar assembly provides lumbar adjustment for the seat backrest and also for the side seat bolsters.

Bolster adjustment is provided by inflatable cushions on the inside faces of the backrest bolsters. The inflatable cushions are operated simultaneously by a separate solenoid valve block and the air pump of the lumbar assembly.

SEAT HEATING AND CLIMATE CONTROL

Touchscreen

1. Front or second row seats selection
2. Temperature adjustment
3. Power
4. Seat zone

Integrated Control Panel

NOTE: RHD vehicle is shown, LHD vehicle is similar.

1. Climate control switch
2. Heated windshield
3. Maximum windshield defrost
4. Heated rear window
5. Temperature setting - Right
6. Auto switch
7. Blower speed switch
8. Maximum Air Conditioning (A/C) switch
9. Auto switch
10. Temperature setting - Left
11. Recirculation switch

The front seat heater or climate control selections made on the FCIM or on the FCDIM in the climate menu. The seat icon on the FCDIM indicates when heating is selected. The FCIM is connected to the HVAC control module through a private CAN bus.

FRONT ROW SEAT HEATER - IF EQUIPPED

NOTE: Right installation is shown, left installation is similar.

1. Seat backrest heater element
2. Seat cushion heater element

Seat heater elements are installed in the seat cushion and backrest. The seat heaters comprise a resistive element which is located within a pad. The pad is located between the foam of the cushion or backrest and the outer trim.

The seat cushion heater element is equipped with a thermostat which maintains the element at a temperature set by the user. The heater elements are controlled by HVAC control module. The switches in the FCIM which is located in the center console or on the FCDIM in the 'EXTRA FEATURES' menu.

CLIMATE FRONT ROW SEATS - IF EQUIPPED

NOTE: Right installation is shown, left installation is similar.

1. Climate air diffuser backrest
2. Inlet duct - Climate seat backrest
3. Insulator foam - Climate seat backrest
4. Climate fan backrest
5. Climate air diffuser cushion
6. Insulator foam - Climate seat cushion - Rear
7. Insulator foam - Climate seat cushion - Front
8. Climate fan cushion
9. SCME

Front row climate seat are controlled by the SCMEs. The SCMEs are located below the seat cushion on a plastic tray.

The climate seat backrest and cushion contain climate assemblies. The climate assemblies are thermal electric devices which operate on the Peltier principle. The components are heated up or cooled down depending on the current provided by the SCMEs. Each climate assembly in the seat cushion and backrest each contain a blower. The blower blows air over the Peltier effect devices to distribute the heated or cooled air through liners. The blower is also controlled by the SCMEs.

SEAT MEMORY SWITCHPACK - IF EQUIPPED

NOTE: Right installation is shown, left installation is similar.

1. Seat memory store switch
2. Seat memory preset switches
3. Seat memory switchpack

The seat memory switchpack is located in each front door trim panel.

The selected memory position is transmitted from the seat memory switchpack to the DDM or the PDM. The DDM connects with the DSM. The PDM connects with the PSM. Both modules connect with the HS CAN body systems bus.

The switches on the seat memory switchpack are resistive ladder type.

The switches apply a different voltage to the DDM or the PDM in response to different switches being operated. The related seat module then operates the seat adjustment motors to the correct positions associated with that memory preset position.

To store a memory position, move the seat, the door mirrors and the steering wheel column to the required positions, press the 'M' switch on the seat memory switchpack. Then press the memory preset switch 1 to 3 to store the position against the selected memory switch preset number.

The memory function also stores the door mirror and the steering wheel column positions associated with the selected memory preset switch 1 to 3.

CLICK AND GO SYSTEM - IF EQUIPPED

NOTE: Right installation is shown, left installation is similar.

The Click and Go System is a multi-purpose seat-back system for second row passengers.

The Click and Go System base unit is installed between the headrest rails through spring tension.

The following attachments can be added:

• Click and Play Tablet Holder - Fixing for tablet holder with integrated Universal Serial Bus (USB) charging port
• Click and Work - Folding table with plastic latch on the top of the unit.

SECOND ROW MOVEABLE SEAT

1. Latch release assembly - Second row right seat backrest
2. Latch release - Center section
3. Latch release assembly - Second row left seat backrest
4. Release lever - Second row left seat
5. Adjustment lever - Second row left seat forward/rearward
6. Adjustment lever - Second row right seat forward/rearward
7. Release lever - Second row right seat

The second row seat is manufactured from high strength steel extrusions that are joined at each end with a high strength steel bracket and pivot. 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 second row seat has a 40/20/40 split configuration and is designed to fold completely flat to the floor, in order to increase loadspace capacity.

The adjustable second row seat has the following options:

• Forward/rearward adjustment by the adjustment lever.
• Backrest fold and maximum forward position by the release lever.
• Backrest fold by release latch.
• Backrest fold and maximum forward position by the release switch. - Optional on vehicles with third row seat only.

Each second row seat have a 2-way manual head restraints.

The central 20% section of the seat backrest can be lowered using a latch release on the top of the seat. This provides additional loadspace capacity.

SECOND ROW SEAT HEATER - IF EQUIPPED

1. Second row seat cushion heater - Right
2. Second row seat backrest heater - Right
3. Second row seat backrest heater - Left
4. Second row seat cushion heater - Left

The cushion heater element is equipped with a thermostat which maintains the temperature set by the user. The second row seat heater elements are controlled by the FCIMB or rear seat heater switch. The rear seat heater switches or FCIMB is connected through a LIN to the HVAC control module. The temperature can be selected by FCIMB or rear seat heater switch or FCDIM which indicates the selected heat setting requested.

SECOND ROW CLIMATE SEAT - IF EQUIPPED

NOTE: Liquid spillages on heated and cooled seats are not covered under warranty. Fluid ingress into the heated or climate seat cushion or seat backrest causes serious damage to the system.

1. Second row climate seat backrest insulator foam
2. Second row climate seat backrest inlet duct
3. Second row climate seat backrest assembly
4. Second row climate seat cushion assembly
5. SCME - Rear left
6. Plastic tray
7. Second row climate seat cushion assembly insulator foam

The climate seat are controlled by a rear SCME. For the front row and second row seats heating and cooling can be selected with the FCIM or FCDIM . The rotary switch can be adjusted to the required level.

The climate seat backrest and climate seat cushion contain thermal electric devices. The devices operate on the Peltier principle, which heat up or cool down depending on the current provided by the rear SCME. Each climate seat cushion and climate seat backrest also contains a blower. The blower blows air over the thermal electric devices to distribute the heated or cooled air through liners. The blower is also controlled by the rear SCME.

REAR INTEGRATED CONTROL PANEL (IF EQUIPPED)

NOTE: RHD vehicle is shown, LHD vehicle is similar.

1. Temperature setting - Left
2. Automatic mode switch
3. Blower speed control
4. Air distribution - Face
5. Temperature setting - Right
6. Air distribution - Feet
7. Synchronize switch

When the vehicle is equipped with climate second row seats, the heater/climate control selections made on the FCIMB . The FCIMB is located on the rear of the floor console. The second row seats temperature selections are transmitted to the HVAC control module. The signals pass through the HS CAN Human Machine Interface (HMI) systems bus.

REAR SEATS HEATER SWITCH - IF EQUIPPED

NOTE: RHD vehicle is shown, LHD vehicle is similar.

The second row seats heater control selections made on the rear seat heater switch. The rear seat heater switch is located on the rear of the floor console. The second row seat heater of the outer second row seats are controlled by rear seat heater switch for each seat.

Each switch has 3 levels of heat setting:

• Low
• Medium
• High.

The levels can be selected by sequential presses of the switch. Light Emitting Diodes (LEDs) on each switch indicate the selected heat setting requested. The request is connected to the HVAC control module through HS CAN HMI systems bus.

THIRD ROW SEAT HEATER SWITCH

1. Third row seat heater switch - Right
2. Third row seat heater switch - Left

The third row seat heater switches for the third row seat are located in the loadspace trim panel, adjacent to the rear quarter window. The seat heater operation of the third row seats are controlled by a separate seat heater switch for each seat.

Each switch has 3 levels of heat setting:

• Low
• Medium
• High.

The levels can be selected by sequential presses of the switch. LEDs on each switch indicate the selected heat setting requested.

Depending on vehicle configuration, the third row seat heater switches have hardwired to the rear seat heater switch or the FCIMB. The heater control signals are transmitted to the HVAC control module through the HS CAN HMI systems bus.

THIRD ROW SEAT

1. Right head restraint latch release cable
2. Left head restraint latch release cable
3. Release strap
4. Latch release assembly
5. Left seat backrest latch release cable
6. Right seat backrest latch release cable
7. Latch release assembly

The third row seat is a 50/50% configuration. The third row seat has a fixed frame therefore the cushion cannot be adjusted.

The third row seat head restrains are a part of the seat backrest. To fold the backrest, the head restraint must be folded onto the backrest.

To fold/unfold the third row seat backrest, there is a release strap on the back of each seat backrest.

Backrest release latch is the only single way to release second row seat backrest for leave the vehicle from the third row seats.

THIRD ROW SEAT HEATER - IF EQUIPPED

1. Third row seat cushion heater - Right
2. Third row seat backrest heater - Right
3. Third row seat backrest heater - Left
4. Third row seat cushion heater - Left

There are 4 ways can control the third row seat heater:

• FCIMB
• Rear Seat Heater Switch
• Third Row Seat Heater Switch
• FCDIM.

There are 3 LEDs to indicate the temperature. The control signal is on the LIN. The heater elements receive a supply from the Rear Junction Box. Each third row seat heater can be operated separately.

READ NEXT: