2008 X164 GL450 Battery and Aux Battery
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- Опубліковано 23 жов 2017
- The under the seat battery likely covers both Mercedes Benz ML & GL; from 2007 to 2020. Vehicle shown is a 2008 Mercedes Benz GL450.
Are the lights, wipers, rear hatch, signals going randomly and a little crazy. It's probably your battery. Hope this helps someone.
Products used (no affiliations):
Main Battery: www.autozone.com/ignition-tune...
Aux Battery: www.batteriesplus.com/product... - Навчання та стиль
Nice job, man. Very helpful video. I love working on my GL 450 but sometimes it drives me bananas. This is helpful. Good delivery and good realistic advice.
Thank you so much for this video I couldn’t for the life of me figure out why my car has went crazy !!!!!
Great helpful video. Your 11 years old son did a great job recording it!
Liked how you bring your son along so he can learn how to do it , I did the same with my son 👍🏼
Thanks for this video man and link to each battery 🙏🏾🙏🏾
Thank you so much I just bought a 2008 GL 450. I hope your is still running strong. I pray I I bought a good one and not a donut.
Great 👍👍👍👍👍👍👍Very helpful video. Thank you so much.
I'm currently doing it using your video thanks a lot!
That’s awesome man. Hope the video helps.
Great video, very helpful
I have a 2010 GL 450 and I’m finishing my second aux battery replacement. The first was 3 years ago and it was an incredible pain because I didn’t think the tab holding the battery in was designed to bend, so I removed the cage, which took me 4 hours to remove and replace because the nuts are almost impossible to replace. DO NOT unscrew them. Just bend down the tab and pull the battery out. Also, don’t pay Benz $35+, go to Batteries and Bulbs and get a Duracell AGM for $14.95. My symptom has been door lock solenoids randomly clicking and/or refusing to lock automatically. My first replacement battery died because the car was garaged for a year and a half due to a bent drive shaft I couldn’t afford to replace. The battery went completely flat,
Thanks for the update. 13:56 mark Top right corner
Great video
Wow the trickle charger could not charge the aux battery.
Very thorough thanks
Great job
This was helpful in replacing the aux battery causing my rear breaktail light and license plate light from staying on. My tip is use good gloves when doing this if you don’t like getting cuts....btw, I took the main battery to Autozone and they tested it “good” but needing a little charge. I had a trickle charger on for a few days but could not fully charge so I think the aux battery was the problem that was draining the main battery.
Two things (from a technician): 1) The positive terminal ALWAYS goes on first when changing any car battery. Ground terminal is first off, last on. Once the ground is off, the positive terminal can touch anything, without consequence. 2) You forgot to plug the vent hole on the positive side of the main battery. If you look again at the video, you'll see there is a small red plug attached to the corner of the red safety covering that was on the positive terminal of the battery when you purchased it. You are supposed to break that little plug off and insert it into the vent hole on the other side of the battery. The battery has vent holes on both sides for use in other applications. Failing to use that plug can result in battery gases escaping into the battery compartment rather than being vented outside the vehicle.
Well said.
Only disconnect the negative first if you want to blow the body modules. Stay in school kids.
@@jmalinowski1000 You might want to Google (How to disconnect a car battery). I'm a MB technician.
If the negative is still connected while he is ratcheting the positive cable loose, let’s hope the ratchet handle doesn’t touch the chassis! Edit: I realize the battery is low but still probably charged enough to cause a decent size spark..,
you totally right but i saw at least 10 battery replacement video and no one use the vent on the positive side so i´m wondering if it´s not necessary to connect that one or what?
Costco’s version of the battery is by interstate with 900 CCA. Its model number is H8(49)
Jing Lu is it ok to use this kind!?
My mechanic wants to stay away from interstate brand battery. So I end up using a duracell agm battery from Sam’s club.
Jing Lu Thank you, I’m thinking to buy the H8 out of Walmart I think they are AMG BATTERYS
Hi, thank you for posting this video. You explained the process very clearly. You seem to be a professional mechanic. The video does help me a lot.
I have same model Mercedez. I recently found out water got in either from sunroof or the hood. The battery tray was almost full of water. The car won’t turn on, right parking light and fog light are on and flashing. Dashboard shows battery is out. I tested the main battery and it is good. Can you please tell me what the auxiliary battery for? Thank you!
I believe as the transmission shifters are electronic in these vehicles, the aux battery allows for you to shift the transmission into neutral if your main battery is totally dead. It may do other things but that is what I've heard of.
Great video helped me out massively here in UK. Just a minor point at 09:43 you meant Amp hour not Amp henry
Thank you for the correction. Hope others see your comment so that they are not confused.
Great video! The only thing I want to point out is that you may want to tell your viewers that you disconnect negative out first and positive 2nd. When reconnecting, it’s positive first and negative 2nd. Again, thanks for the video!
Thanks for the comment. Others will see your recommendation now.
Great advice, saves you possibly spot welding your extension bar to the floor pan!
@@muckydog5806 Facts!
there's another aux battery in the back as well, correct? ive been having battery drain issues so i always make sure to unplug my main battery after i shut my car off, but all of a sudden my ISM isn't working and my truck is stuck in park, so I'm thinking the aux batteries have been completely drained by the drain problem, and that's causing my ISM to malfunction. going to try replacing them both today, I'll let you guys know how it goes in case anyone runs into the same issue
Duracell batteries in Mercedes GL450 have problems holding a charge. You will definitely have a shorter life span on that auxiliary battery
Ah means amp hours, not amp Henry’s. Henry’s has to do with inductance and is denoted by the symbol “H”
I noticed the positive cap still has that airhose circular plastic cover for the other hole, do we have to cover that or can we leave it open as long as there is an air hose on one side? Thanks.
Is there anything you have to do as for reprogramming? Or is it fine when restarting car? I'm glad you did this video I have to do this and had no idea about the back up battery
Wil Smifph I didn’t have to do any reprogramming, I was a little surprised as my radio didn’t even ask for a code (when my 1999 ML does). Also, glad I could help regarding the AUX battery. I think you’ll avoid some problems down the road by doing it now.
Omigod. This is a lot of work. I paid my battery for $300 including labor. Worth it.
Thanks for the video. I have a 2012 GL450 and this video was very helpful. Quick Question: I purchased the same batteries as you suggested. After installing everything, when i turn on the car it says "auxiliary battery malfunction". I am surprised that a brand new battery could be malfunctioning. Do you think I might be missing something ?
401k Excessive Fees im just trying to help, are you sure that you have connected the negative to negative and positive to positive?, as in video different batteries have reversed terminals.
Hi, thank you for the video, it's very helpful. I followed your instructions and replaced my battery. Unfortunately, I skipped the air vent detail and installed the battery on the air vent hose and it broke. I got a new air vent hose but wondering where the other end needs to get it. I appreciate if anyone can help me. Thank you
That’s a really good question, unfortunately I have no idea where the other end goes I imagine somehow leads its way outside. This is one that you’re probably gonna want to get on the forms for.
@@sat_sonic Vent hose goes to the bottom of the vehicle a little to the right.
You connect the RED/Positive first. Nothing will spark with ground off. Good duck tape trick with the wrong size 14mm socket to hold nut in socket. It's 13mm nuts, and you want to make sure battery is push into front hold down. Defiantly recommend AGM batteries.............
That's stupid where the battery is located
Awesome Video, Just did the Aux Battery on my W164 ML500. Like you just did, you didn't have to take out the Aux Cage. Just Bend the Tab the Aux battery slides out.
Just to make pulling the battery easier, I unbolted the seat (4 Torx Head) and put it forward. Didn't disconnect anything and didnt require and recoding.
Glad it helped.
How did the mini Duracell hold up? I really try to stick to Genuine/OE but they have both of the ones you used here in town. I saw someone on Amazon say they bought an aftermarket auxiliary battery and did not have good luck. They did not say if it was a Duracel. I actually kinda like the idea of having a Duracel in my GL hahaha. Kinda cool. I do not think the big battery is available as a Mercedes Genuine part anymore anyways. Hoping you see this comment. If anyone else used the Duracel and sees this lemme know! Thanks for the video I think I am going to try and do this myself. I even have the trim tools already haha.
Like a champ. No issues so far.
hi, thanks for the video. i recently purchased a 2012 GL450 and sometimes the turn signal lights doesn´t work and the rear hatch never work properly, i replaced the rear hatch hardware and doesn´t solve the problem. now looking into your video see that the battery could be the reason but when i purchased the SUV the previous owner told me that changed the main battery for a new one so this is wondering me 2 questions: how could i verify if the main and auxiliary batteries are good? and if these are good what would be the reasons of the malfunction of those parts?, thanks in advance.
You forgot to hook up the car to a 12V power source to keep the juice flowing to you on board computer - as a result you will now deal with reprogramming all your system from scratch -that might require a visit to your ($) Mercedes dealership
johnson controls + high quality shizer
can you move the seat if the battery is dead (it wont even unlock ) so i can remove the battery and charge it (the vehicle is outside and i cant charge it there and moving is out of the question cause it locks wheels and everything
Did u leave the driver's door open to keep system from needing reprogramming?Or connect power source to positive and negative terminals to keep system from being compromised and needing reprogramming?
I really do think that he should’ve done that
I’ll be surprised if no problems comes if you do not have the system charged up when you are doing this
Just my opinion
Great everything on my ML350 2008 is working except for the back sore lift gate it won’t open automatic I have to pushed hard
Can I disconnect the battery negative to reset the system??
Don’t think so. You may have a failed motor or solenoid or something completely else. Best to get it diagnosed so you’re not just throwing parts at it.
Do you need power bank back up battery before you remove main battery thank you?
You can remove them both and replace them both as shown in the video. The AUX battery isn't very expensive whether you get the one I link in the notes or even if you get an OE MB one from the dealer.
My GLis slow to turn over. I have over 95,000 miles. I think it is time for a new battery.
Brenda Harding - you can have Advanced Auto test it for free. I recommend them as they have the same battery tester used at the dealerships. Thanks for the comment hope it helped.
Friend asks I put a new battery ok if it has a delay when turning on a delay of 3 seconds it can be the auxiliary why the new battery is pulling well it throws 13.7 and 13.8 it must be the auxiliary answer me as soon as possible
Did it work?
Where can I find the system loader
Where can I find the loader
Could this eventually cause a no start
thanks, nice info but I will also add a 12 volt to the leads so I don't lose my programming while replacing the batteries. did you have to cut the rug on the right-hand side to access the batterie easyer.
EdmondEnterprises Group Inc. - I did not have an issue with my 2008 with having both batteries disconnected for 5 mins or so while I did the swap. As far as carpet, it is perforated so all you have to do is trim a little with knife. Not a big deal at all, after all everyone eventually has to replace the battery.
I did this for both batteries and no issues with codes or settings. However, a fault/error code is recorded in the memory but it doesn’t seem to affect anything. I suspect that an OEM workshop does a simple little reset somewhere after they replace a battery.🕊️
Does a Mercedes GLS also has an auxiliary battery and where is it located
Can you hook up amp power cable to auxiliary battery ?? Does it make a difference?
- Hi, not exactly sure what you are asking. It's a Mercedes; my recommendation would be to not "hook up" anything (amp power cable) or otherwise; to the AUX battery. Simply replace it and leave it. The reason is that, it is used to put your car in Neutral if your main battery dies and you need to tow the car.
Another video said you always disconnect and reconnect the positive connection first. He said that is very important, but you did the negative first... Why would he say that, and test you do the opposite, and it didn’t seem to matter.
It’s not as big of a deal as people think. I’ve done lots of batteries in many different ways and never had an issue. Just don’t cross the wires 👌
I’m having trouble with my hatch lever not flipping back... I have to manually flip it back and then the buttons work to close it. I just had a new system battery put in, but not a new auxiliary battery. I also never got an error message stating the auxiliary was bad. Do you think the auxiliary battery is bad, and would that fix my hatch lever problem?
It’s hard to know for sure unless you test the aux battery. However if it is more than five years old - it’s due so replace it. Not sure about the connection to the latch as I never had a problem with that. Have you checked on the Mercedes forums? if not I would ask there if anyone has experienced the same problem.
What was the spray you sprayed on the terminals at the end?
This guy obviously worked in a shop. You don’t need it. Unless you have corrosion problem.
Great video very helpful did everything under 20 mins.Now my question is my radio/windows, radio is in nighttime mode and it’s set on automatic also my windows go down automatic but when I close them I have to do it manually and when they do close it goes down by its self half way. Also I didn’t change the Aux battery only the primary is that the reason why??
I have 2009 GL450
AMP HENRIES!!!!
How did your batteries holding up?
Excellent! No problems whatsoever with either battery.
How long do you have before everything is erased (codes) before you install either of the batteries back in? Say the radio code? I have a x164. 2010 gl450
candlemedia - not really sure, but I was surprised that this didn’t require me to input a radio code or anything. I have a 2008, and nothing was erased and I was disconnected for like 10 mins.
thinking of buying this exact truck....any issues for this year or pretty reliable?
If you're handy or have a mechanic friend it's not too bad. However, you will likely need suspension work (front & rear air shocks). if you replace; always use Arnott brand; they are better then OEM. Also, the cam shaft magnets go out all the time (I've got a video on my channel where I'm replacing one); only a $30 part online; but gets annoying unless you're able to replace yourself. Finally, the power steering pump is a little undersized so that fails around 80k miles. Look for one with documented maintenance records. Also, keep in mind that its a Mercedes luxury SUV; so things like Tires, Batteries, Oil Changes all cost an arm and leg. Especially, the tires...I think we paid north of $1200.
Thanks for the response! Looking at an 2008 with about 85k miles. Seems like it runs good. Pulled no codes on the OBD.
Super Moto Boy - sounds like a good one.
Order off of FCPeuro website. They have a lifetime warranty on everything they sell. Wear and tear covered for life. Look up vids on youtube. I did bilstein air springs on our 2011 GL550, nice to know now I won’t have to buy another one, I can just replace for free :D
Other expensive items: intake manifold lasts only 70k miles. Transmission conductor plate ($2k) lasts 70k miles. AC compressor ($2k) lasts 90k miles.
Is it ok to use H8 out of Walmart!?
Absolutely- they have great batteries.
Having same symptoms as you were. Pulled batteries and had tested. They said batteries were good??? Charging them to see if they take charge. I let my car set up for several months. That is when I noticed problem. Thanks for your video. Any input would help.
Hi everyone. My stereo system works when i start the car. After 1 min and 45 sec sound is stop. signal works, stereo system's screen is on everything is works. my original amplifier is just replaced last year with oem one. when im parking the car after couple hours attempting to start engine i can listen the radio. but after 1 min and 45 sec sound is stopping again. is that possibly aux battery? (2007 gl450) cos when this start we were in artic cold effect in NY.
Edit: also when this start happening also i had licence plate light message was on my dashboard. my licence plate light has been replaced 3 months ago. hopefully aux battery caused all that.
Emrah Güngör - bad primary battery causes many “weird” electronic behavior. My rear wiper wouldn’t stop or my hatch wouldn’t latch or my dash was saying all sorts of lights were bad when they weren’t. Aux battery is simply to shift to neutral in the instance the main battery is dead and you need to tow the car. If main battery is more than 3 yrs old, I’d replace it with an AGM one, and I’d replace the AUX battery at the same time. If not, I’d pay $125 to have the car diagnosed at a dealer so you don’t waste money throwing parts at it.
Thank you very much for your quick response. i will visit my mechanic guy tomorrow for power steering pump replacement. i will let them test the battery. are you happy with that duralast platinum battery with your gl450? cos i was looking same battery. if my problem happening from the battery i was thinking about purchase that one. cos autozone very close to my home.
Sorry I didn't see you're question. Yes, I compared the CCAs and the Duralast AGM Platinum was the highest. I personally wouldn't buy anything else...with that said most batteries are made by a company called Johnson Controls...so if it's AGM; it's likely just as good. Walmart sells them cheap; just not around the Chicago-land where I live.
Wise Adviser
Hi there. Thank you for your efforts in making this layman tutorial. I do applaud your wittiness and tenacity. However, to the contrary; WE NEVER CONNECT THE NEGATIVE CABLE TO THE BATTERY FIRST. By Connecting the negative cable first and then connecting the positive cable last, can cause minor inexpensive damages, such as a "blown fuse" or major expensive damages, such as a "blown control module". As a "principle of wallet/pocket book" when removing battery cables: ALWAYS DISCONNECT THE NEGATIVE CABLE FIRST, THEN DISCONNECT THE POSITIVE CABLE LAST. When reinstalling cables: ALWAYS CONNECT AND TIGHTEN DOWN THE POSITIVE CABLE FIRST, THEN CONNECT THE NEGATIVE CABLE LAST. There's no contempt on my part [ONLY ENCOURAGEMENT]. Again thank you and looking forward to seeing MORE VIDEOS.
Do i need to worry about the memory of the radio or the electronics messing up? I took my car to Pepboys and the guy was concerned about it loosing memory and he said they needed a memory stick so it won’t hav e any issues
Too much work for a fucking battery. Dump the Mercedes and get you a chevy truck.
Fuck yeah. That's real truth.
You waste too much time helping to locate the battery. Do another separate video talking about battery quality
C t
Great video, very helpful