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2015 GL350 Bluetec. Ok so water intrusion ruined my adblue module. Cost an arm and a leg at the stealership to get it repaired (I may have taken it somewhere else but the 10 starts remaining light was lit and I had hoped aftermarket warranty would cover it but it didn’t). Water also got into the battery box.
So adblue module was replaced and now I get an intermittent dead car. Central locking is out. When I put the key in the ignition and turn it the heat/AC doesn’t come on. Car won’t crank and has a ton of faults. “3rd row seat not locked” “passenger side airbag” “traction control” and some others. I can probably get a list if that helps narrow it down.
Sometimes the car starts up and runs without issue or warnings, other times it is a dead paperweight. Even plugging it into my other car via jump cables and charging the battery a ways and trying again doesn’t resolve it.
Anybody out there have a good idea where to start? Seems possible that the front SAM is intermittent and failing since the symptoms cover so many problems and *if* the modules do wake up then the car works.
A picture or how-to access the SAM would be awesome.
Last edited by Panzerknacker; Jun 10, 2024 at 04:58 PM.
Found it. Along the passenger side footwell and A-pillar. Going to multimeter the power connections and make sure it’s actually receiving power before I replace it.
This is an underrated section of the car when it comes to troubleshooting. I had an issue with the blower motor and, well, it was an issue with a connector in this area instead. As part of that, I accidentally disconnected something else and it completely killed the car. I had literally hundreds of fault codes. A very brief panic set in and then I reminded myself that things could be worse. All good ten minutes later.
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