Mercedes Benz GLK350 "Auxiliary Battery Malfunction" fix. This can save you $$. 

I am very impressed that you took the time to make this video about what I see is an esoteric issue which we are experiencing with our own GLK350. Thank you for that.

This video made the changing the auxiliary battery simple. Thank you!

Huge help. Replaced the aux battery per your video and my 2014 GLK is back to normal. Many thanks!

Thanks for listing the Star 40 tool needed - made for a quick trip to snag a $7 socket.

I like your Polish electrical sign " nie dotykac uzadzenie elektryczne "😁

Your video was a huge help and saved me money Thank you!

Awesome brother! Really appreciate you man, that worked out great. Thank you!!!

Thank you very much good info, but something that no one does or forget is to include the price of the material, but thank you again!!!

Helpful video... Thanks!

Thank you for your video, like it,

Thanks for the video

Awesome thanks

Will this cause issues with the A/C switch staying on. My A/C switch stays on for a while, blinks 3 times then shuts off.

What’s the proper way in disconnecting and connecting auxillary battery terminal? Do O disconnect negative and then positive? And for reconnecting ots the opposite correct?

What other msgs pop up for this auxiliary battery?? And what's the function of this battery in w211?

Thank you for this video. Because of this information I convinced my husband to replace the auxiliary battery of my GLK350 and he did it with no problems. I do have questions though. When I test drove my GLK350 after replacing the auxiliary battery I did not notice my auto shutt off, when sitting at the traffic light, being back. When should I notice it? I usually turn it off but I would like for it to be back if ever I want this feature.

Good video. My auxiliary battery also lasted 7 years and held only 0.7 V, impressive that it worked until that low level. I replaced with a slightly larger capacity non-OEM battery because my experience with the OEM main battery is bad - the first one was replaced under warranty after less than 3 years and the new one lasted just 3 years! So I installed a non-OEM battery of slightly larger capacity that so far has lasted longer (approx same price as OEM). My car is 220 diesel 4matic and the Stop-Start is always on - how did you switch off the Stop-Start?🕊

Tienes el amperaje de la batería

I have a question concerning my gear. It doesn’t auto select from D1 to D2, D2 etc…, it’s a GLK 350 4MATIC 013. What’s the possible cause?

I just got the error message just now in mime. So sad

I wounded if the auxiliary battery is in the same location on a 2014 GLK250?

Great video and good help. Thank you. One thing makes me wonder about the mind of German engineering. At time 5:46 you take out the cover. One side has set of nuts of one size and the other has bolts with hex head. Who is so stupid to design such a thing? I had to look around for the right tool and at the end used screwdriver to lose those bolts. How many people were wondering about this idiotic thing?

The hardest part in my experience : to put the trim back. It just wouldn’t fit back in, no matter how much wiggling 😖

Very helpful and interesting--but please ditch the music !

I presume I can purchase the auxiliary battery from the dealer?

How much is the battery?