#73
Genuine Mercedes-Benz CLS C218 W218 Front Right Seat Folding Headrest Actuator Motor A0009700026
Genuine used Mercedes-Benz electric front seat headrest folding / adjustment actuator motor, removed from a 2014 Mercedes-Benz CLS C218/W218 Front Right Seat.
This actuator is installed within the front seat assembly and operates the electric headrest adjustment / folding mechanism, allowing the head restraint mechanism to move correctly when commanded by the seat adjustment system.
Part Number: A0009700026
Mercedes-Benz OE Number: A 000 970 00 26
Alternative Number: 0009700026
Additional Motor Reference: 114454-103 / 114454103 – where marked
Mercedes Description: Folding Device / Klappvorrichtung
Part Type: Headrest Actuator / Adjustment Motor / Folding Motor
System: Electric Front Seat / Headrest Adjustment
Position: Front Right Seat
UK RHD Position: Driver / O/S
Donor Vehicle: Mercedes-Benz CLS C218/W218
Donor Year: 2014
Manufacturer: Mercedes-Benz
Condition: Genuine Used OEM Part
COMPATIBILITY
Mercedes A0009700026 has broad application across several Mercedes-Benz platforms. The genuine Mercedes parts listing confirms the OE number, while vehicle-fitment catalogues show applications extending from approximately 2006–2019 depending on model and specification. (Mercedes-Benz Originalteile)
MERCEDES-BENZ CLS C218 / W218 – 2011–2018
Suitable for selected front-seat configurations including:
• CLS 220 BlueTEC / CLS 220 d
• CLS 250 CDI
• CLS 250 BlueTEC / CLS 250 d
• CLS 250 4MATIC
• CLS 300
• CLS 350
• CLS 350 CDI
• CLS 350 BlueTEC / CLS 350 d
• CLS 350 CDI / d 4MATIC
• CLS 400
• CLS 400 4MATIC
• CLS 500 / CLS 550
• CLS 500 / CLS 550 4MATIC
• CLS 63 AMG
• CLS 63 AMG 4MATIC
• CLS 63 AMG S / S-Model
A used-parts record specifically documents A0009700026 in the right-front seat of a C218/X218 CLS, while another listing identifies it as a C218 front-seat power headrest motor. (RRR)
MERCEDES-BENZ CLS SHOOTING BRAKE X218 – 2012–2018
Selected:
• CLS 220 BlueTEC / d Shooting Brake
• CLS 250 CDI / BlueTEC Shooting Brake
• CLS 250 d 4MATIC Shooting Brake
• CLS 350 CDI / BlueTEC Shooting Brake
• CLS 350 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 S Shooting Brake
ADDITIONAL MERCEDES-BENZ APPLICATIONS
Because A0009700026 is not unique to the CLS, potential applications also include selected:
Mercedes-Benz C-Class
• W203 / S203 – selected applications
• W204 / S204
• C180
• C200
• C220 CDI
• C230
• C250 / C250 CDI
• C300
• C350
• C63 AMG
Mercedes-Benz E-Class
• W211 / S211 – selected applications
• W212 / S212 – selected applications
• E200
• E220 CDI
• E250 CDI
• E270 CDI
• E300
• E320
• E350
• E500 / E550
• Selected AMG applications
Mercedes-Benz S-Class
• W221
• S350
• S400
• S450
• S500 / S550
• S600
• S63 AMG
• S65 AMG
• Equipment dependent
Mercedes-Benz CL-Class
• C216 – selected electrically adjustable front-seat applications
Mercedes-Benz M-Class / ML
• W164 – selected applications
Mercedes-Benz GL-Class
• X164 – selected applications
Mercedes-Benz R-Class
• W251 – selected applications
Mercedes-Benz GLK
• X204 – selected applications
Mercedes-Benz G-Class
• W463 – selected applications
Parts references for A0009700026 identify W204, W211, W212, W221, W251, W463, X164, X204, C218 and X218 among the associated chassis families. (eBay.de)
IMPORTANT: The broad compatibility above applies only where the vehicle uses the same electric headrest mechanism and OE actuator. Seat specification must be checked.
LEFT / RIGHT SEAT APPLICATION
The motor is documented in both left and right front-seat applications, depending on Mercedes seat configuration. Listings identify A0009700026 with left/right front placement, and a C218/X218 donor record specifically documents it in a right-front seat. (RRR)
For this item:
Position: FRONT RIGHT SEAT
On a UK RHD CLS:
Right Front = Driver / O/S
For international buyers, describing it primarily as Front Right Seat Headrest Motor avoids confusion between RHD and LHD vehicles.
TECHNICAL INFORMATION
Mercedes describes A0009700026 as a folding device, while aftermarket/OE catalogue descriptions identify it as an adjustment motor or headrest motor. (Mercedes-Benz Originalteile)
The actuator forms part of the electrically operated front-seat mechanism.
Its purpose is to transfer motorised movement to the head restraint mechanism, allowing controlled adjustment/folding according to the seat design.
The unit works together with:
• Headrest mechanism
• Seat backrest frame
• Electric seat wiring harness
• Seat adjustment controls
• Seat control electronics
• Associated gears/linkages
• Electrical connectors
ELECTRIC SEAT SYSTEM INFORMATION
Depending on specification, a Mercedes CLS front seat can incorporate multiple electrical functions including:
• Electric fore/aft movement
• Electric seat height
• Electric backrest adjustment
• Seat base inclination
• Electric headrest adjustment
• Lumbar support
• Memory functions
• Seat heating
• Seat ventilation
• Multicontour adjustment where equipped
Each function can use a separate motor or actuator.
Therefore, failure of the headrest actuator does not necessarily indicate a fault with the main seat adjustment motors.
COMMON SYMPTOMS / REASONS FOR REPLACEMENT
• Electric headrest no longer moves
• Headrest stuck in one position
• Headrest adjustment intermittent
• Motor operates but mechanism does not move correctly
• Clicking or abnormal noise during adjustment
• Actuator motor seized
• Internal gearing damaged
• Electrical connector damaged
• Wiring damaged during seat movement
• Motor damaged during seat repair
• Replacement required during seat-frame rebuild
• Donor seat supplied without the correct actuator
IMPORTANT DIAGNOSTIC INFORMATION
Before replacing the actuator, check:
• Seat electrical supply
• Seat fuses
• Seat control switch
• Seat wiring harness
• Electrical connector
• Wiring continuity
• Seat control module
• Mechanical headrest linkage
• Headrest guides
• Actuator gears/mechanism
• Stored seat-related diagnostic faults
If the motor can be heard operating but the headrest does not move correctly, the mechanical linkage or gearing should also be inspected.
VEHICLE NETWORK / DIAGNOSTICS
On vehicles with electronically controlled or memory seats, diagnostic equipment such as Mercedes STAR/Xentry can assist with checking the seat system.
Depending on vehicle specification, diagnostics may allow checking of:
• Seat control-module communication
• Adjustment commands
• Stored seat fault codes
• Electrical supply
• Motor operation
• Memory seat functions
INSTALLATION
The replacement actuator should be installed in the same orientation and mounting position as the original component.
During installation check:
• Motor mounting points
• Mechanical linkage
• Drive mechanism/gears
• Electrical connector
• Seat wiring routing
• Full movement of the headrest
After installation, operate the headrest through its available adjustment range to confirm smooth operation.
PROGRAMMING / CODING
The actuator motor itself does not normally require individual programming or coding when replaced with the correct matching component.
However, seat-system diagnosis or initialisation may be necessary if additional control modules or seat electronics have been replaced.
IMPORTANT COMPATIBILITY NOTE
Although A0009700026 has broad Mercedes-Benz compatibility, Mercedes used many different electric seat configurations.
Please compare your original component before ordering.
Primary OE number to match:
A0009700026
A 000 970 00 26
0009700026
Where present, also compare:
114454-103 / 114454103
Additionally check:
• Front seat position
• Motor shape
• Electrical connector
• Connector pin arrangement
• Mounting points
• Mechanical drive connection
• Headrest mechanism
• Seat equipment/options
Matching A0009700026 to the original actuator is the strongest compatibility check.
CONDITION
Genuine used Mercedes-Benz OEM part.
Removed from a 2014 Mercedes-Benz CLS C218/W218 – Front Right O/S Driver Seat (UK RHD).
The item may show normal signs of previous installation, use, storage and removal.
Please inspect the listing photographs carefully to confirm the OE number, electrical connector, mounting points and actuator design against your original part.
Ideal genuine Mercedes-Benz replacement for a faulty, seized or damaged electric front-seat headrest folding/adjustment actuator motor on compatible CLS C218/X218, C-Class, E-Class, S-Class and other Mercedes models where OE number A0009700026 and the seat mechanism match the original component.
Brand: Mercedes (Genuine OE)
Paint Code: 792
Year: 2012
Color: Black
Mileage: 59
Manufacturer Part Number: A0009700026
Grade: A
Vehicle Identification Number (VIN): WDD2040032A686447
Reference OE/OEM Number: A0009700026
Placement on Vehicle: Front