The recall notice, lodged with the Australian Competition and Consumer Commission (ACCC), says a wiring harness may be damaged during regular opening and closing of the front doors.
Mercedes-Benz Australia says that – depending on which wire in the harness is damaged – the defect may result in a delayed deployment of airbags, airbags that do not deploy at all, and/or the automatic door unlock function not working in the instance of a crash.
There is also a chance that when the car contacts emergency services following an airbag deployment, it may register the wrong seating position in the car as being affected.
If any of the above functions fail during an accident, there is a risk of serious injury or death to vehicle occupants, says the recall.
Mercedes-Benz Australia has told CarAdvice there are no known instances of the failure on Australian-delivered cars.
Mercedes-Benz Australia is asking customers to contact a dealership of their choosing for inspection and repair of the faulty unit.
Vehicles included in the recall were sold between 1 August 2018 and 31 March 2019.
A full list of vehicle identification numbers of the 155 cars involved in the recall can be found here .
To check if your vehicle is affected, contact a dealer at www.mercedes-benz.com.au/passengercars/mercedes-benz-cars/dealer-locator