OEM Restraints System Part Replacement Search


2019 Mercedes-Benz B-Class

DISABLE PROCEDURE AND TIME (Always Check Service Manual)

Before starting work on pyrotechnical components or work involving pyrotechnical components, it must be ensured that there is no power supply to the vehicle and the vehicle must be secured against accidental restarting.

All electrical consumers must be switched off. Otherwise they can be damaged when the ground line is disconnected/connected.

1) Switch off ignition and keep transmitter key at a location beyond transmitter range (at least 2 m)
2) Detach ground line from on-board electrical system battery
3) Using a diode test lamp, check the on-board electrical system for voltage between the positive line of the on-board electrical system battery and the disconnected ground line

If the diode test lamp lights up, the on-board electrical system is still active because of a defect in the electrical system.

REV: 03/2020

PARTS THAT MUST BE REPLACED FOLLOWING A DEPLOYMENT

The generated gas flow deploys the airbag or tensions the belt strap (if equipped). Defective or damaged pyrotechnical components • must always be replaced:

• Driver airbag [AIRBAG,STEERING WHEEL]
• Front passenger airbag [AIRBAG,INSTRUMENT PNL]
• Sidebag [AIRBAG,FRONT SEAT; AIRBAG,QTR PANEL]
• Window airbag [AIRBAG,ROOF]
• Kneebag
• Emergency tensioning retractor with and without belt airbag
• Pyrotechnical fuse (pyrofuse) [IGNITER,BATTERY INTERRUPT]

In the event of accidents with a driver airbag which has been triggered:

• Steering wheel
• Steering column tube [COLUMN ASSEMBLY,STRG]

must always be replaced

PARTS THAT MUST BE INSPECTED AND REPLACED IF DAMAGED

Pyrotechnical components are to be checked for external damage and replaced if necessary.

If axial play or a noise is detected at the steering column tube, this must always be replaced.

Defective or damaged pyrotechnical components, control units and their sensor systems must always be replaced. Repair of or tampering with such components is not permissible.

Components that come into contact with pyrotechnical components (e.g. instrument panel, door trim, glove compartment, seats, wiring harnesses, belt straps, etc.) must always be checked for damage and be replaced if necessary. Only technically approved component combinations are permissible.

Damaged or defective attachment or bolting points of pyrotechnical components must be properly repaired or replaced.

Additional Information


*This matrix does not currently contain all production vehicles sold in the United States. Please refer back to this page frequently to ensure the most up-to-date information. The following charts were developed in cooperation with AudaExplore, a Solera company. The contents are based on the information available at the time of publication. To ensure that the most recent information is used, always refer to the vehicle maker's technical information before working with airbags and other passive restraint systems.


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