Mercedes M Class Mercedes ML350 and Mercedes ML500 SUV's.

Blind spot not available, pre-safe function limited on ML350, 2014

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Old Apr 2, 2021 | 11:34 AM
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geekoncall's Avatar
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Default Blind spot not available, pre-safe function limited on ML350, 2014

Hi guys, I have 2014 ML350 with about 146K on it.
I was getting blind spot assist inoperative for a while. It was intermittent, will come and go (noticed yellow triangles are lit on side mirrors all the time). Battery died few weeks ago. Bought a new battery from Costco (both main and auxiliary) and had it install at Canadian tire.

Now blind spot inoperative message is back as well as pre-safe functions limited, see owner's manual message. Both message show up as soon as I start the car, If I press ok, they disappear from dash but remains in the warning message but I can drive without any issues.
- Is this safe to keep driving with these 2 functions not available? I am in the middle of a long drive, wont able to get back soon. I read few post where people with same issues losing power in the middle of highway or car entering in collision mode, sounds scary.
- I was checking front bumper grills for radar sensors and noticed, my front drive side has no radar sensor unit at all but front passenger side grill has radar sensor unit in it. Is this supposed to be only one sensor unit on front? I can see back bumper has two, one on each side.
- Do all radar sensor units have same model in a vehicle, front and back? in my case, I can see front one is A0009054603
Thanks a million in advance for your input.
 
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