GLK-Class (X204) Produced 2008-2014

2014 GLK350 died while driving

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Old Jul 27, 2021 | 05:26 PM
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GLK350
2014 GLK350 died while driving

My daughter was driving her glk350 and she said while driving the car stopped working. I recalled the auxiliary battery needing to be changed so I did that. The car dash lights turn on but the car wont crank. Im heading back to scan it so i can see what its saying. wondering if anyone had any ideas where i should be focusing in looking as a start.

Thx
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Old Jul 27, 2021 | 07:20 PM
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That sucks to hear, especially about leaving her stranded. Never something you want to worry about as a parent.

First mission is to get MB specific codes pulled. That will help get us started.

Does the engine at least turn over with the starter? Does it sputter or otherwise attempt to run? Is the drivebelt/poly-v belt still intact and correctly tensioned? When was the last service and what was done?

Had she just gotten fuel recently?
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Old Jul 27, 2021 | 07:53 PM
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Originally Posted by andreigbs
That sucks to hear, especially about leaving her stranded. Never something you want to worry about as a parent.

First mission is to get MB specific codes pulled. That will help get us started.

Does the engine at least turn over with the starter? Does it sputter or otherwise attempt to run? Is the drivebelt/poly-v belt still intact and correctly tensioned? When was the last service and what was done?

Had she just gotten fuel recently?

Ill ask her about the fuel when shes back. The nothing happens with the engine at all. I hear the fuel pump but nothing after. Ive done all the various servicing needed since the mechanics plan ran outl. Service C and D if i recall. These are the codes i just pulled.






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Old Jul 28, 2021 | 10:37 AM
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Wow, that's a lot of codes. But I like the scan tool you're using, it provides plenty of information.

I think you've got a couple main issues, but bear in mind I'm no expert

Two things I know can go wrong with these GLKs (and other Benz) is the camshaft position sensor and the ESL module under the steering wheel. When it breaks, it renders the vehicle unable to start or run. There are a few how-to documents on replacing the module. When it happened to me on my C300 I had no idea what it was and got shafted by stealership for about $2500 to fix.

Read this for starters: https://mbworld.org/forums/c-class-w...lots-pics.html and a search will reveal many more threads. Suffice to say that our GLKs are built on the x204 platform which is shared with the w204 C-class of 2008-2014ish. You should be able to find plenty of info on replacing the ESL.

The camshaft sensor may not be faulty, it may just be telling you the timing/cranking was off and this was likely due to the ESL preventing the engine from starting or running. I think the order of repairs should be ESL first, then see if it starts and runs.

Good luck and keep us posted.
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Old Jul 28, 2021 | 06:59 PM
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With so many codes, the first thing I'd look at is the battery condition and security of battery connections and related power wiring (see A10C16). Also, you may have to reset something due to the issues with the electronic locking circuitry.
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Old Jul 29, 2021 | 02:09 AM
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The dashboard lights stay on when esl goes out?
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Old Jul 29, 2021 | 02:17 AM
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I charged the main battery thats all ok. I was wondering what you meant by resetting something. I will check the wiring tomorrow
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Old Jul 29, 2021 | 09:23 AM
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Originally Posted by Callipygian
I was wondering what you meant by resetting something.
You may have to get some of those codes to clear before it will allow a start.
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Old Jul 29, 2021 | 09:54 AM
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Yes, when the ESL fails I believe the dash is lit like a Christmas tree.

If your scan tool allows you to delete the codes, I would try that first and see if you can restart. I doubt it, if the ESL is dead.
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Old Jul 29, 2021 | 04:28 PM
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I cleared all the codes and this is the only one that came back. Car still wont start.


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Old Jul 29, 2021 | 05:43 PM
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GLK350
Does the radiator fan come roaring on when you turn the key to the on position, like the car is overheating or the AC is on high?

I don’t think the ESL failing will cause the car to power off mid-drive, but the ECU having a seizure might.
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Old Jul 29, 2021 | 07:53 PM
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No radiator noise at all if ecu went out wouldnt there be more codes?
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Old Aug 4, 2021 | 11:32 AM
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GLK350
Originally Posted by Callipygian
No radiator noise at all if ecu went out wouldnt there be more codes?
well, then the car was running, it threw a whole bushel of codes, yeah?

Perhaps because you cleared them, they haven’t returned because the car won’t start?
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Old Aug 4, 2021 | 12:02 PM
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Yes, I would assume if the car started I would see the codes but since it isnt nothing registers
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