Q: SRS Light

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Last night my SRS light came

My car has 200000 miles.

The SRS light is an indication that there is a fault in the Supplemental Restraint System. This has to do with the airbag system. There can be a fault in any of the impact sensors that the system relies on to detect an accident and deploy the airbags or seatbelt pre-tensioners. The seatbelts contain a small explosive charge similar to the airbags. When an impact is detected, they fire along with the airbags to make sure there is no slack in the seatbelt to keep you from moving forward. The fault can be in any one of these components including the airbags themselves. Due to the nature of the airbag system, YourMechanic unfortunately does not provide any services for the SRS system and you may not find many repair shops that do. You may have to take it to an authorized Mercedes dealer for diagnosis and repair. With the SRS light on, the airbags and seatbelt pre-tensioners may not deploy in an accident. Have the system checked as soon as possible.

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