Mercedes Benz GLK350 auxiliary battery replacement detailed tips by froggy 

I am a 70 year old woman who has never attended anything mechanical. His directions were spot on. I even purchased the same battery. Though it took me almost an hour I got it snow and saved $240.00.

You are very smart sir and I was just in the process to see if it just needed charged or a new battery

Followed along and replaced my battery with ease. Thanks, Froggy! 🐸🙌

Thanks a lot for his video. Was able to replace the auxiliary battery successfully. I got the original Mercedes battery which cost is $197 (not cheap) and followed your video to install it. Thank you! The plastic components in the back could have been designed differently 😊

Gosh did this work Beautifully! Froggy you saved me a Bunch$! Sincerest Thanks!

Many thanks for the video !!

Awesome! Thank you sir!

Thanks for the vote of confidence getting that cover panel out...everything worked out great!

The message says, “AUXILIARY BATTERY MALFUNCTION” Thanks for posting, this really helped. One thing to know, certain electronic functions will not work when that battery fails…..like Cruise Control!

Hey Froggy, Joe M. here. I'm not sure about Mercedes, but i can tell you from multiple experiences in the past, (GM master tech), in a GM car if you use a regular flooded battery in place of the AGM battery in the auxiliary position it WILL set DTC's. This is primarily due to the battery's chemistry and the charging algorithm the ECM uses, (AGM vs. Flooded). Again, i'm not 100% on how Mercedes handles it, but i definitely know how GM does it. Hopefully, all will be well with it. Just something to be aware of. Great channel

Excellent video but I have to say it scared me, I thought I was getting cataracts! 😃

Absolutely great video thank you so much you’ve saved me hundreds of dollars sir 😏🥳

Wifes GLK is 2014. Factory battery lasted 5 years. Purchased "Chrome" brand battery from A-zon and replaced. Lasted 5 years as well. I replaced again today with same "chrome" brand. Hope it lasts 5 years also. Not sure why GLK says theres a problem because the old battery seems fine. Holds charge, reads 13 volts and operates the hatchback just fine.

thanks ! Very helpful

Thanks

Thanks so much, used the same battery you did. I stuck a flat screwdriver under the nut in the battery terminal to lift it up so the bolt would engage . I also had to cut the positive terminal cover with a razor knife to make it fit. Easy peasy, do it yourself!

Thanks for the video It helped me to find it quickly Likewise any feedback after changing the battery with a different brand .Are there changes in the running condition of the car.will a different brand do the job ?as long as it has the same Amp hour rating .Thanks

Warning some folks are posting fake info in the comments, this IS an AGM battery been a year as I write this zero codes. Be careful of "keyboard experts". Battery #ad amzn.to/3hzxtzo

I was advised to use motorcycle terminal nuts is that okay?

I just replaced mine and it is very easy to remove the trim piece at the rear of the vehicle. Apply light pressure and the clips holding it in place will Release. So much easier than getting frustrated trying to wiggle the battery cover out. .The nuts are 10mm and the Torx is 45. Also, this 15 minute video should be half the length. A lot of hemming and hawing about the sunlight, etc. etc. You MUST use the same type of battery technology, that is an AGM battery.

My 2015 Mercedes GLK 350 displayed “Auxiliary Battery Malfunction “ message this morning. I was not able to find any reference to that message in the owners manual. I had the dealer replace the main battery a couple of months ago and he mentioned I might be getting the auxiliary battery message soon. I’ll t4y to replace it myself.

I want to do exactly as you did so I need your help sir

Great video, not too long. I have a 2014 GLK with original batteries. Would you advise changing both?

After replacing the battery is there anything else needed to reset on the computer of the car?

It was very helpful for me froggy and it gave me a message AJ auxiliary battery needs to be changed it would not leave the dashboard I found your video very very helpful do you live close to Florida ? Your wife is blessed

170 is cold cranking amps

Does a GLS has an Auxiliary battery and where is it located

AVERIA EN BATERIA AUXILIAR, EN MEXICO DONDE CONSIGO UNA BATERIA DE ESAS QUE PUSISTE?

Is it necessary to unhook main battery before doing this?

Hi Froggy, I noticed from the invoice you posted, the cost of this Banshee YTX14-BS is $55.59 and I would not find anything in that price range. Do you have a special discount?

Always disconnect negative cable first the positive, then install positive then negative.

What year is this? Does it matter?

I have a 2011 GLK auxillary battery, what does it do

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Carroll Port

Anyone know what kind of regular battery goes in the glk ?

AGM absorbent GLASS Mat , not Gas mat . AGM do not off gas and corrode terminals . You used the wrong battery. There are many more reasons AGM is superior.

Video way to long!

The message goes away when you hit the OK button on the steering wheel left side.

Thanks