Remove/Install Switch For Backrest Lumbar Support - AR91.25-P-1436ME

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2025 Mercedes-Benz Maybach GLS600, 2025 Mercedes-Benz GLS63 AMG, 2024 Mercedes-Benz Maybach GLS600, 2024 Mercedes-Benz GLS63 AMG, and 2023 Mercedes-Benz Maybach GLS600. However, it is still accessible from the selected car via links, so may be relevant.

Model 167

with code 275 (Driver's seat, electrically adjustable with memory function)

Model 167

with code U22 (Lumbar support adjustment)

Courtesy of MERCEDES-BENZ USA

Shown with CODE 275 (Electrically adjustable driver seat with memory function)

Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Move corresponding front seat (1) forwards.
2	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
3	Remove trim (2).	It is not necessary to remove the front seat (1) if only the trim parts (2, 3) are being removed.	AR91.10-P-1200ME
4	Detach trim (3) so that electrical connector is accessible.	It is not necessary to remove the front seat (1) if only the trim parts (2, 3) are being removed.	AR91.10-P-1200ME
5	Release and disconnect electrical connector from driver seat lumbar support adjustment switch (S109/2) or front passenger seat lumbar support adjustment switch (S109/3).
6	Unclip driver seat lumbar support adjustment switch (S109/2) or front passenger seat lumbar support adjustment switch (S109/3).
7	Install in the reverse order.