M-Class (W166) Produced 2012-2015

ML350 Bluetech - wont start - Advice please?

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Old Aug 17, 2019 | 08:21 AM
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2012 ML350 Bluetech
ML350 Bluetech - wont start - Advice please?

Hi ML350 Bluetec users.

I have a 2012 that started having odd behaviour.
2 weeks ago Errors were thrown that the Blind Spot was disabled.
After a couple of days the ABS and DSR stated they were disabled as well.
A few days later the PreSafe disabled appeared along with the Dash flashing Red with regards to the parking brake.
And today the SRS disabled and after I reached my destination the SUV will not start.

The lights are bright, and not dim, in the interior and when I push the button to start the dash lights up as normal and moves the needles however the motor does not start.

I have an apporintment at the dealer for servicing however I can't get to the dealer if the car won't start. I checked the main battery using the Service Menu and it reads 12V. The IB when not started read a negative value.

Does anyone have any idea as to what the issue could be? Does anyone know how to boost / bypass whatever is preventing me from starting the vehicle?

I would like to at least start the vehicle and drive it to the dealer to review and fix.

Thanks.
V
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Old Aug 17, 2019 | 11:27 AM
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It sounds like the auxiliary battery is bad, lots of posts about that and easy to replace.
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