Mercedes CLS 2014 Amg Driver OS Right Seat Electric Harness A2188201404

#73

Genuine Mercedes-Benz CLS C218 X218 Front Right Electric Seat Wiring Harness A2188201404

Genuine used Mercedes-Benz front electric seat wiring harness / loom, removed from a 2014 Mercedes-Benz CLS C218 AMG specification vehicle.

This is the internal electrical wiring harness used within the electrically adjustable front seat assembly, connecting the various seat electrical components, motors and associated equipment according to the vehicle’s factory seat specification.

For a UK RHD vehicle, this application is the front right / O/S / driver’s seat when the matching seat equipment configuration is fitted.

Part Number: A2188201404

Mercedes-Benz OE Number: A 218 820 14 04

Alternative Number: 2188201404

Part Type: Electric Seat Wiring Harness / Seat Loom

Application: Electric Front Seat Adjustment

Position: Front Right Seat – configuration dependent

UK RHD Side: O/S / Driver Side

Vehicle Platform: C218 / X218

Donor Vehicle: Mercedes-Benz CLS

Donor Year: 2014

Specification: AMG / Electric Seat

Manufacturer: Mercedes-Benz

Condition: Genuine Used OEM Part

COMPATIBILITY

Mercedes parts catalogues associate A2188201404 with the CLS C218/X218 seat wiring system, covering a wide range of CLS powertrains and body variants where the corresponding seat equipment codes are fitted. (PartSouq)

Mercedes-Benz CLS C218 Coupe / 4-Door Coupe – 2011–2018

Potential applications include:

• CLS 220 BlueTEC / CLS 220 d

• CLS 250 CDI

• CLS 250 BlueTEC / CLS 250 d

• CLS 250 BlueTEC / d 4MATIC

• CLS 300

• CLS 320

• CLS 350

• CLS 350 CGI

• CLS 350 CDI

• CLS 350 CDI 4MATIC

• CLS 350 BlueTEC / d

• CLS 350 BlueTEC / d 4MATIC

• CLS 400

• CLS 400 4MATIC

• CLS 500

• CLS 500 4MATIC

• CLS 63 AMG

• CLS 63 AMG 4MATIC

• CLS 63 AMG S / S-Model

• CLS 63 AMG S 4MATIC

Mercedes-Benz CLS Shooting Brake X218 – 2012–2018

Potential applications include:

• CLS 220 BlueTEC / d Shooting Brake

• CLS 250 CDI Shooting Brake

• CLS 250 BlueTEC / d Shooting Brake

• CLS 250 BlueTEC / d 4MATIC Shooting Brake

• CLS 350 CDI Shooting Brake

• CLS 350 BlueTEC / d Shooting Brake

• CLS 350 BlueTEC / d 4MATIC Shooting Brake

• CLS 400 Shooting Brake

• CLS 400 4MATIC Shooting Brake

• CLS 500 Shooting Brake

• CLS 500 4MATIC Shooting Brake

• CLS 63 AMG Shooting Brake

• CLS 63 AMG 4MATIC Shooting Brake

• CLS 63 AMG S Shooting Brake

• CLS 63 AMG S 4MATIC Shooting Brake

Catalogue data specifically lists A2188201404 within a broad range of CLS 218 model variants, including both Coupe/Sedan and Shooting Brake applications. (PartSouq)

PRE-FACELIFT / FACELIFT

The CLS 218 platform received different seat equipment and wiring combinations throughout production.

Therefore this harness may be found on both earlier and later C218/X218 vehicles, but compatibility must be determined by the OE number and factory seat equipment, rather than year alone.

ELECTRIC SEAT SYSTEM INFORMATION

The front seat contains a network of electrical wiring connecting the seat’s electrically operated equipment.

Depending on vehicle specification, the seat assembly can incorporate:

• Electric fore/aft adjustment

• Electric seat height adjustment

• Electric backrest adjustment

• Electric seat inclination adjustment

• Electric lumbar support

• Seat memory functions

• Seat heating

• Seat ventilation where equipped

• Multicontour functions where equipped

• Seat occupancy/safety-system connections

• Seat adjustment control modules

• Seat adjustment motors

• Associated switches and electrical connectors

A2188201404 should only be used where the original seat has the corresponding factory equipment configuration.

MERCEDES SEAT OPTION / EQUIPMENT INFORMATION

Mercedes used numerous different wiring harnesses within the C218/X218 front seats.

EPC data associates A2188201404 with specific combinations involving option/equipment codes such as 275 and 291, with further variations depending on equipment such as 805 and 873. (Merc)

This is important because two visually identical CLS seats can contain different internal wiring harnesses.

Mercedes catalogues list numerous alternative C218/X218 seat harness numbers alongside A2188201404, confirming that the harness selection depends heavily on the seat’s factory specification. (LLL Parts)

TECHNICAL INFORMATION

The seat wiring harness distributes electrical power and control signals between the vehicle and the electrical components installed within the seat.

Connections can vary depending on equipment but may include wiring for:

• Seat adjustment motors

• Seat adjustment control electronics

• Lumbar adjustment

• Memory functions

• Heating elements

• Seat switches

• Safety-related seat circuits

• Vehicle electrical supply

• Communication circuits

• Additional comfort equipment

The harness is specifically routed through the seat frame to prevent interference with the moving seat mechanisms.

Because an electrically adjustable seat moves in several directions, correct harness routing and securing are important to prevent the wiring from becoming stretched, trapped or damaged.

COMMON SYMPTOMS / REASONS FOR REPLACEMENT

• Electric seat adjustment not operating

• One or more seat motors not working

• Intermittent electric seat operation

• Seat functions stop at certain seat positions

• Damaged or broken wiring

• Wiring trapped in seat mechanism

• Burnt or damaged connector

• Corroded electrical terminals

• Broken connector retaining clips

• Previous incorrect seat repair

• Harness damaged during seat removal

• Replacement following seat-frame repair

• Replacement when installing the correct original seat equipment

IMPORTANT DIAGNOSTIC INFORMATION

Electric seat problems should be diagnosed before replacing the wiring harness.

Check:

• Seat fuses

• Seat electrical supply

• Ground connections

• Seat adjustment switches

• Seat control module

• Individual adjustment motors

• Wiring continuity

• Electrical connectors

• Bent or corroded connector pins

• Harness damage underneath the seat

• Wiring trapped within the seat rails or adjustment mechanism

A failed seat motor, switch or control module can produce symptoms similar to a damaged wiring harness.

VEHICLE NETWORK / DIAGNOSTICS

Depending on vehicle specification, the seat electronics can communicate with other vehicle systems.

Mercedes STAR/Xentry or suitable diagnostic equipment can be useful for checking:

• Stored seat-related fault codes

• Control-module communication

• Individual seat adjustment functions

• Power supply faults

• Memory-seat operation

• Associated comfort-system faults

INSTALLATION

The replacement wiring loom should be routed through the seat in the same position as the original factory harness.

Particular attention should be given to areas around:

• Seat rails

• Adjustment motors

• Pivot points

• Seat frame

• Backrest mechanism

• Connector mounting points

The wiring must not become trapped or stretched when the seat moves through its full adjustment range.

PROGRAMMING / CODING

The wiring harness itself does not normally require programming or coding.

However, if seat control modules or other electronic components are changed at the same time, diagnostic configuration or initialisation may be required depending on vehicle specification.

IMPORTANT COMPATIBILITY NOTE

Mercedes-Benz used a large number of different front seat wiring harnesses on the C218/X218 platform.

Therefore, please do not purchase solely based on the vehicle being a Mercedes CLS or AMG model.

Before ordering, compare:

OE Number: A2188201404 / A 218 820 14 04

Also check:

• Front seat side/position

• Electrical connectors

• Number of connectors

• Connector colours and pin configuration

• Seat adjustment functions

• Memory-seat specification

• Heated-seat specification

• Ventilated-seat specification where applicable

• Multicontour/lumbar equipment

• Vehicle option codes

• Physical wiring layout

Matching A2188201404 to the original harness is the strongest compatibility check.

CONDITION

Genuine used Mercedes-Benz OEM part.

Removed from a 2014 Mercedes-Benz CLS C218 AMG specification vehicle – front right / O/S driver’s electric seat.

The harness may show normal signs of previous installation, use, storage and removal.

Please inspect all listing photographs carefully to confirm the connectors, wiring branches and exact part number against your original part.

Ideal genuine Mercedes-Benz replacement for a damaged, cut, trapped or faulty front electric seat wiring harness on compatible CLS C218 / X218 models where OE number A2188201404 and the seat equipment specification match the original.