Land Rover Discovery 4 L319 Front Seat Heating Mat Left Right N/O/S AH22648A40AA

#73

Came off driver right seat

GENUINE LAND ROVER DISCOVERY 4 L319 FRONT SEAT HEATING MAT ELEMENT LEFT / RIGHT LR013782 AH22648A40AA

Genuine used Land Rover front seat heating mat / heated seat element, suitable for the front left or front right seat on compatible Discovery 4 L319 vehicles.

This heating element forms part of the factory heated-seat system and is installed within the front seat assembly underneath the upholstery, providing heat to the seating surface when the heated-seat function is switched on.

Land Rover OE Number: LR013782

Engineering Number: AH22-648A40-AA

Alternative Number: AH22648A40AA

Part Type: Front Seat Heating Mat / Heated Seat Element

System: Heated Front Seat / Seat Climate Comfort System

Position: Front

Vehicle Side: Left N/S or Right O/S

Suitable Side: Driver or Passenger – configuration dependent

Primary Vehicle: Land Rover Discovery 4 L319

Additional Application: Land Rover Discovery 3 L319 – selected specifications

Manufacturer: Land Rover / JLR

Condition: Genuine Used OEM Part

COMPATIBILITY

The exact LR013782 / AH22-648A40-AA / AH22648A40AA heating mat is documented for installation on both the left and right front seats.

This is particularly useful because the same component can potentially replace the heating element in either:

Front Left / N/S Seat

or

Front Right / O/S Seat

On UK RHD vehicles:

Front Right / O/S = Driver Seat

Front Left / N/S = Passenger Seat

Exact compatibility should always be confirmed using the OE/engineering number, connector and original seat specification.

LAND ROVER DISCOVERY 4 / LR4 L319

Documented applications include:

2009–2018 Discovery IV L319

Including selected:

• 2.7 TDV6 / TD 4x4 – 276DT – 2.7 Diesel – 190 PS / 140 kW

• 3.0 TDV6 / TD 4x4 – 306DT – 211 PS / 155 kW

• 3.0 TDV6 / TD 4x4 – 306DT – 245 PS / 180 kW

• 3.0 SDV6 – 306DT – 256 PS / 188 kW

• 3.0 TD / SDV6 – 306DT – 249 PS / 183 kW

• Other 3.0 TDV6 / SDV6 306DT specifications where the matching heated front seat is fitted

• 3.0 V6 Petrol – 306PS – selected markets

• 5.0 V8 Petrol – 508PN – 375 PS / 276 kW

Suitable across multiple Discovery 4 trim levels where the corresponding factory heated front seat and LR013782 heating element are fitted.

Potential trim applications include selected:

• GS

• XS

• HSE

• HSE Luxury

• Landmark

• SE / market-specific versions

• Commercial/Van versions with corresponding heated-seat equipment

LAND ROVER DISCOVERY 4 VAN / COMMERCIAL L319

Documented compatibility also includes selected:

• 3.0 TDV6 211 PS – 2011–2017

• 3.0 TDV6 245 PS – 2011–2017

• 3.0 SDV6 256 PS – 2011–2017

Again, the vehicle must have the matching heated front-seat configuration.

LAND ROVER DISCOVERY 3 L319

Cross-reference fitment data also associates LR013782 / AH22648A40AA with selected Discovery III L319 applications.

Potential applications include:

• Discovery 3 2.7 TDV6 – 276DT – 2004–2009

• Discovery 3 4.0 V6 Petrol – 406PN – 2004–2009

• Discovery 3 4.4 V8 Petrol – 448PN – 2004–2009

Also documented for selected:

Discovery III Van / Commercial L319

• 2.7 TDV6 – 2007–2009

IMPORTANT: Discovery 3 compatibility should be confirmed by matching LR013782 / AH22-648A40-AA to the original component because seat specification varies according to model year, trim and equipment.

LEFT / RIGHT SEAT COMPATIBILITY

One of the useful features of this particular heating element is its documented application on:

FRONT LEFT – N/S

and

FRONT RIGHT – O/S

Therefore it can potentially be used for either the driver’s or passenger’s front seat depending on vehicle market.

For a UK RHD Discovery:

Right / O/S = Driver

Left / N/S = Passenger

For LHD vehicles this driver/passenger relationship is reversed.

For international listings, describing the component as:

FRONT LEFT / RIGHT SEAT HEATING MAT

is more accurate than restricting it to only driver or passenger use.

TECHNICAL INFORMATION

The LR013782 / AH22648A40AA heating element forms part of the factory Land Rover heated-seat system.

The element is positioned within the seat assembly beneath the upholstery.

When the heated-seat function is selected, electrical current passes through the heating element, generating controlled heat which is transferred through the seat padding/upholstery to the occupant.

The complete system can include:

• Seat heating element/mat

• Seat wiring harness

• Electrical connectors

• Temperature sensing/protection components

• Heated-seat control system

• Climate control interface

• Vehicle electrical supply

• Associated seat electronics

The system is designed to provide controlled and relatively even heating across the appropriate seat surface.

HEATED SEAT SYSTEM INFORMATION

Discovery 4 vehicles equipped with factory heated seats allow the driver and passenger heating functions to be controlled independently.

Depending on vehicle specification and production year, the heated-seat system may provide multiple heating levels.

The heating mat works as one component of this complete system.

A malfunctioning heated seat therefore does not necessarily mean that the mat itself is defective.

COMMON SYMPTOMS / REASONS FOR REPLACEMENT

• Heated seat completely inoperative

• Seat takes unusually long to warm up

• Seat only heats intermittently

• Part of seat remains cold

• Heating cuts out unexpectedly

• Open circuit within heating element

• Broken internal heating wire

• Damaged electrical connector

• Wiring damaged during seat repair

• Heating element damaged during upholstery removal

• Replacement during seat refurbishment

• Original heating mat physically damaged

• Seat upholstery/foam replacement requiring replacement element

IMPORTANT DIAGNOSTIC INFORMATION

Before replacing the heating mat, check the complete heated-seat system.

Recommended checks include:

• Heated-seat fuse

• Electrical supply

• Ground connection

• Seat wiring harness

• Electrical connectors

• Heating element continuity

• Temperature sensor/protection circuit

• Heated-seat controls

• Climate control system

• Seat-related stored fault codes where applicable

A heated seat that does not operate can be caused by a wiring, connector, control or power-supply fault rather than the heating mat itself.

HEATING ELEMENT TESTING

The heating element can be checked for electrical continuity using suitable diagnostic equipment.

An open circuit can indicate a broken heating element.

However, resistance values should be compared against the correct Land Rover workshop specifications rather than assuming any generic resistance value is acceptable.

Inspect the mat carefully for:

• Burn marks

• Broken heating tracks

• Damaged wiring

• Damaged connector pins

• Previous repairs

• Localised overheating

• Tears or physical damage

INSTALLATION

Replacing a seat heating mat normally requires removal or partial dismantling of the front seat.

Installation can involve removal of:

• Front seat from vehicle

• Seat side trims

• Seat upholstery

• Upholstery retaining clips/hog rings

• Seat cushion or backrest padding

• Associated electrical connectors

The heating element must be positioned correctly and evenly against the seat structure/padding.

Avoid:

• Folding the element sharply

• Trapping wiring

• Damaging heating tracks

• Incorrect cable routing

• Pinching the element during upholstery installation

Professional installation is recommended if the installer is unfamiliar with automotive seat upholstery.

SRS / SEAT SAFETY INFORMATION

Front seats can contain safety-related components such as:

• Side airbags

• Seat belt components

• Occupancy detection equipment

• SRS wiring/connectors

The correct Land Rover workshop procedure should therefore be followed before disconnecting or dismantling the seat.

Do not apply power directly to unknown SRS-related connectors.

PROGRAMMING / CODING

For a like-for-like replacement of the LR013782 heating mat in a vehicle already equipped with factory heated seats, the heating mat itself should not normally require programming or coding.

It is an electrical heating element rather than a separately programmable ECU.

If other control modules or seat electronics are replaced at the same time, additional diagnostics or configuration may be required.

RETROFIT INFORMATION

This component should primarily be used as a replacement for a Discovery already equipped with the compatible factory heated-seat system.

Installing LR013782 alone will not convert a non-heated seat into a fully functioning factory heated seat.

A retrofit may additionally require:

• Appropriate wiring

• Heated-seat controls

• Compatible seat components

• Electrical connectors

• Control-system configuration

• Vehicle programming/configuration

IMPORTANT COMPATIBILITY NOTE

Please do not purchase solely because your vehicle is a Discovery 3 or Discovery 4.

Land Rover used different seat components depending on:

• Model year

• VIN range

• Seat specification

• Trim level

• Upholstery

• Heated/cooled seat equipment

• Seat design

• Electrical system specification

Before ordering, please match:

LR013782

AH22-648A40-AA

AH22648A40AA

Also compare:

• Electrical connector

• Wiring arrangement

• Heating mat shape

• Dimensions

• Mounting arrangement

• Front seat specification

• Original heating element

Matching LR013782 / AH22-648A40-AA to the original component is the safest method of confirming compatibility.

CONDITION

Genuine used Land Rover OEM front seat heating mat / heating element.

Suitable for Front Left N/S or Front Right O/S applications where the matching part is fitted.

As this is a used electrical seat component, normal signs of previous installation, removal and storage may be present.

Please inspect all listing photographs carefully for:

• Heating mat condition

• Wiring condition

• Connector condition

• Mounting points

• Signs of previous repairs

• Part/engineering numbers

Ideal genuine replacement for a faulty or damaged front heated-seat element on compatible Land Rover Discovery 3 and Discovery 4 L319 vehicles where LR013782 / AH22-648A40-AA / AH22648A40AA matches the original component.