My airbag light on my w212 is constantly on. The fault code reader shows "communication with the front left crash sensor has a malfunction" and "there is an internal fault in the left front crash sensor". Where is this sensor located in the front?

Thanks

Acceleration sensor bolted inside front bumper (see b151/1 & b151/3), may need to remove bumper. Should be part # 1729056000 (803 = 2013) – VIN will confirm.

Thanks
Does the part you mentioned fit my car? VIN: WDD2120051A704293

Yes, see attachment.

Thank you so much for the help, also for detailed information of my car, now I can fix the problem by my self ��

See attachments.

That information was helpful , does 2012 E550 have same part number sensor? I am having the same problem.
Also where is the ground line for on board electrical system battery located.

VIN?

Blind spot assist sensors are located inside rear bumper, both sides.
https://mbworld.org/forums/e-class-w...de-bumper.html

I see , Now i can trace it and fix it myself. i am assuming this system would require to be reset after installing new sensors.would a normal diagnosis computer do the job or it would requires some specific one.
and Do ClS550 , S550 have same airbag and blind spot sensor.I am thinking to buy them from part out cars.

See attachment.

I am having same issues on my 2014 MercedesBenz CLS550 Please help...
My airbag light on my w218 is constantly on. The fault code reader shows "communication with the front left crash sensor has a malfunction" and "there is an internal fault in the left front crash sensor".
Have tried everything but the error comes back for both left and right front crash sensors...
Any idea what could be wrong. Also Please can you confirm the wiring color on both sensors ( right now it is connected to Blue and Brown wires)
Thanks

Is it possible to bypass the sensor with any resistor?

Where you able to bypass the sensor , im having this issue with my 14 w212