Remove/Install Rear Seat Heater Control Unit - AR91.30-P-0033FRX

Model 290 

with code 872 (Heated rear seats) 

Courtesy of MERCEDES-BENZ USA

Shown with code 811 (Advanced sound system) and code 489 (AIR BODY CONTROL) 

Fig 1: Rear Seat Heater Control Unit Components Location - Model 290 With Code 872 (Shown With Code 811)

Courtesy of MERCEDES-BENZ USA

Shown with code 811 (Advanced sound system) 

	Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Notes on HANDS-FREE ACCESS		AH80.61-P-0001-01A
	Remove/install
1	Perform commissioning of rear seat heater control unit (N25/6).	When replacing the rear seat heater control unit (N25/6).
			AD00.00-P-2000-06FR
2	Switch off ignition and store transmitter key outside of transmission range (min. 2 m).
3	Remove side trim in left load compartment.		AR68.30-P-1185FRX
4	Unscrew nuts (2) and set aside holder (1) with control units attached.	Model 290 with code 810 (Sound system) with code 872 (Heated rear seats) Model 290 with code 811 (Advanced sound system) with code 872 (Heated rear seats)
5	Unscrew nuts (3) and set aside holder (4) with control units attached.
6	Remove rear bass speaker (H4/38).	Model 290 with code 810 (Sound system) with code 872 (Heated rear seats) Model 290 with code 811 (Advanced sound system) with code 872 (Heated rear seats)	AR82.62-P-7842FRX
7	Loosen screws (8), remove holder (9) with rear seat heater control unit (N25/6) and place to one side in vehicle.
8	Disconnect electrical connector from rear seat heater control unit (N25/6).
9	Unclip rear seat heater control unit (N25/6) from holder (9) and remove.
10	Install in the reverse order.