Remove/install seat belt with emergency tensioning retractor - AR91.40-P-0630SX

MODEL 221.0 /1

Fig 1: Identifying Seat Belt With Emergency Tensioning Retractor Components

G07601838

Courtesy of MERCEDES-BENZ USA

Shown on right automatic belt retractor

	Remove/install
	Risk of injury. Injuries may result when performing testing or repair work on airbag or emergency tensioning retractor units.	Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.	AS91.00-Z-0001-01A
	Risk of injury caused by release of spring in the automatic belt retractor is released.	Never disassemble automatic belt retractors.	AS91.00-Z-0002-01A
	Notes on performing repair, body work and welding on vehicles with airbags and ETR units		AH91.00-P-0002-01M
	Assessment of airbag and seat belt tensioner units in accident vehicles		AH91.00-P-0006-01B
	Legal regulations on handling and storing airbags and emergency tensioning retractors		AH91.00-P-0004-01A
1	Remove left or right trim from B-pillar		AR68.30-P-4700SX
2	Switch off ignition and remove transmitter key or Keyless Go start/stop button from EIS [EZS] control unit	Keyless Go start/stop button only for vehicles with code (889) Keyless Go.
3	Undo bolt (3) from seat belt guide bracket (2)		*BA91.40-P-1002-01O
4	Remove bolt (4) on automatic belt retractor (1)		*BA91.40-P-1004-01O
5	Detach electrical connectors (6) on driver GUS squib (R12/1) and driver belt force limiter (R12/27) or on front passenger ETR [GUS] squib (R12/2) and front passenger belt force limiter (R12/26)	Pull air duct (5) to one side until the automatic belt retractor (1) is accessible.
6	Route automatic belt retractor (1) out of catch (arrow) in B-pillar	If the automatic belt retractor (1) is replaced, the faulty automatic belt retractor (1) must be disposed of properly. Refer to:↓
		Notes on disposing of airbag and emergency tensioning retractor units	OS91.00-P-0001-01A
7	Install in the reverse order
8.1	Check supplemental restraint system (SRS) using STAR DIAGNOSIS	After replacing the automatic belt retractor (1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A

SEAT BELTS/EMERGENCY TENSIONING RETRACTORS

Number	Designation		Model 221
BA91.40-P-1002-01O	Screw on front upper belt guide fitting	Nm	30
BA91.40-P-1004-01O	Screw on front automatic belt reel	Nm	32

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS diagnosis system, Compact Passenger Car	6511 1801 00