2010 GLK350 4MATIC
2 days ago I went to start my GLK and it turned and stopped turning. So, I figured I've had the car for 6 years, the battery must be a bit low so I hooked up the battery charger. Charged it up and eventually the car started. I immediately went to the parts store, bought a brand new battery for the car. went through the proper process of removing the old battery and installing the new one. As i installed the new one, I heard a click somewhere near the battery. (Kinda felt normal sound of things settling into place). But when I went to start the car, it just does not start, does not even turn actually.. Made certain I have a fully charged battery, voltage is good at 12.25V. Checked most fuses under the hood, etc. I do have a diagnostics tool ICar MBII but I am unsure what to look for. Any thoughts?




You need to top-up the new battery. Once it's topped off, it should retain a full charge, unlike the old one.
Hopefully you got the same specs on the new one vs the old? As in same CA and CCA ratings.




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Once you have the new battery topped off, you need to drive it regularly to keep it charged. I'm assuming that's going to be the case, so you should be fine heading into winter.
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I would double-check the wiring to/from battery and to/from starter.
It's as if a connection is lost somewhere. But where?




Check the connections to the battery to ensure they are clean and tight. Make sure the heavy ground wire to the engine block is tight. Measure the voltage when you try to start, at the battery itself, then at the terminals that connect to the battery.
Check the connections to the battery to ensure they are clean and tight. Make sure the heavy ground wire to the engine block is tight. Measure the voltage when you try to start, at the battery itself, then at the terminals that connect to the battery.
We've ruled this out definitively?
Just guessing now, since we don't know much else. You can do a search on ESL, here's just one result: https://mbworld.org/forums/glk-class...-no-crank.html
Just guessing now, since we don't know much else. You can do a search on ESL, here's just one result: https://mbworld.org/forums/glk-class...-no-crank.html
I"ll keep posting if this fixes the issue for future reference.
S




It could have died in the unlocked position, but I haven't experienced that - maybe others have? Did we ever get error code(s) checked on it? It would be a good idea to have a scan tool handy.
It could have died in the unlocked position, but I haven't experienced that - maybe others have? Did we ever get error code(s) checked on it? It would be a good idea to have a scan tool handy.
When mine failed on a 2008 C300, I was able to unlock the car with the keyfob and put the key in the ignition lock, but the steering wheel column did not unlock and I also heard no mechanism noise when inserting or removing the key. This should be clearly audible. Not knowing what it was, I ended up paying $2500 for the dealer to fix including the tow.
If you can find someone local, or a workaround like some that are available now, I'd give that a try. I wouldn't go to the MB dealer unless its the last possible option.





