Mercedes C300 W205 Warning-Stop Vehicle Leave Engine Running 

Excellent video, I’m a women, I like to be educated on my vehicle 🚗… I understand everything you were explaining, and I so appreciate how you explain things in your content. Thank you again. 💛

Excellent video...brilliant presenter! Someone who really knows his stuff and can explain it in simple, easy to unerstand, plain English.

My warning for the auxiliary battery read: "Auxiliary Battery Malfunction"...more of a voltage regulator (had 4 capacitors, one burned out). Fairly easy to change. I appreciate all your videos, you've saved me money.

Thank you for you video! I don’t know much about cars and I received both warnings on my dash about the auxiliary battery and the stop vehicle notification 😅 but you video helped answer my questions!

Thank you! Returned from vacay and got this warning.

I’m glad this video is here thank you for the advice I changed the battery & it worked

So honest and informative. Thanks!

Thank you for explaining this so well!

Fantastic video....thanks for this really helpful information. I came home from vacation and was headed out to vote when I saw this message on my dash.

Thank you, you saved me a lot of money 💰 🙏 it was just the battery, Mercedes wanted to do other things to it making it more money 💰..👍

As soon as you said its been 5 years on the original battery it made sense to me. This is about to be the 6th year with my w205 the auxiliary battery is fine i need to replace the car battery. Thanks for the help!! You got a new subscriber in me!

Thanks for the tip on the Aux Battery!!

Thank you for this advice

REALLY APPRECIATE THIS INFORMATION..THANKS

Great video!! Thank you!

Thank you for the honest and very informative video. This warning came on in my C300 today and it freaked me out lol. Getting it checked tomorrow!

Thank you so much this is very useful information

Very good info thanks

Doing great 👍loving the content

Thank you! My sons c300 is doing that right now I’m taking the battery to get it tested 👍🏼👍🏼

That was really helpful ✌️

Watching this video now and it made me worry less lol I was so nervous 😬

Thank you soo much.

I’m having that same issue now but I’m a just change the battery and hopefully that is it. Thanks for the vids!

Thank you so much for the advice! ;-)

Thanks for the advice how to measure the battery. It was tested yester at the auto store and checked out ok, but it was connected to terminals. +100k, 2015 original battery from MB in the car.... It comes just around the 7Y mark.

Great video thank you!Can you Recommend any batteries for my 2020 Mercedes c300?

I had this warning this morning when I started my vehicle, my 2016 GLC has never had a battery change and it sat out on a cold driveway last night. This was helpful, but I didn't know about the aux battery. I will take it and have the battery disconnected and checked. Thank you.

My man. Damn you're good

Nice Video

Love the video! Help me I will say.

Will hooking up dashboard cameras to your battery drain the battery even if you just program the camera to parking mode?

Nice

ey man. My 2017 E300 stop car leave engine running light has been on several months. And this morning while I was driving it went to right then turned off. I’m currently at PepBoys getting it checked out. Do you think that is just battery? Or alternator as well? I’m worried! MB told me I needed new battery two weeks ago but car was starting just fine so I kept driving…. Thanks man

I took apart the Aux "Battery" and it ends up being basically four super capacitors (2.7v 50F) on a semi complicated circuit board with three leads.

Great help. I have a question. Can i just buy a battery off the shelf at AutoZone or Walmart? Or does it need to come from dealership? 2018 Mercedes C300

Good evening all good 👍

thank you,,, disconnect the battery

I have the same thing happened. I will test on the battery itself first. Where did you buy the ALTERNATOR Thank you,

Great video! However, a few people have asked if we can purchase a battery from somewhere other than Mercedes and no one has answered. Will someone please recommend a none OEM battery I can buy for my 2019 mb c300?

Thanks for being here.

What does it means if I have this problem plus the car turning off while running?

Mine is not saying any warning but my start stop not working car slow to start . Took to car shop they said battery is good 14.8 had me replace the alternator but car is slow to start and start to stop not working still they keep saying you got a battery but guess what no one disconnect the battery. I will be checking this thank you for this video

We changed our battery out on our 2015 Mercedes c300 base model, and now while driving when we come to a stop in traffic with foot on battery the car shuts off, when we take our foot off the brake it cranks by itself and drives fine until we have to stop again. Do you have any advice on what has happened?

I had the same message. I have not changed the battery yet. I followed the message from the instrument cluster and left the car running for 45min. After, I decided to drive. The message was still there but after reaching my distination I switched off the engine and then back on again - the message went. Every couple of days, I started the car and left it for running for 30min- I had no message. This could be another way of alternative to fix this or if the message appears again even after running the engine and driving the car for a while then suggested like on the video is to replace the battery. I'll monitor mine for another week - drive and let the engine run for 45min every couple of days. That's right it should not be the auxiliary battery. If it was then, the auxiliary battery message will pop up.

I have a question I buy a Mercedes Benz e400 the car is won’t run how should I do

I had the same issue after muy driving my car for a month cause I was out town working, it’s been 3 weeks now and it’s still showing on my dash to pull over and leave car running

I have the "Stop Vehicle, Leave Engine Running on my dashboard but this is the only message that's there. I have left the car running and it's still there. Previously when I did it, it went off for a while but came back up. Do I just have the auto part store check my battery?

oh shit i shoudl have seen your video earlier, i changed my auxiliary battery instead of the main battery, now the warning come up again. 😅

Mine told me it on cold start 1 time I drove and turned it off and turned it on and it went away , any tips ?

Take care of our moped friends lol 6th one I ran over

My old battery died out due to a leak for some reason . So I replaced it with a new one. And this error comes up. I’ve left it running for over a hour, the error still won’t go away

I have the same problem since 2 weeks ago, even I drove for 2 hours, it was still there. Sometimes the warning just gone and it still back randomly. Since it's been almost 6 years, so I thought it's time to change the battery. Yesterday I used a multimeter to check the battery(ignition off, just unlock the car then release the hood to open)it shows 12.65V DC, that's no bad right? So it's not the battery's problem and also it's not alternator's problem, otherwise since the problem happened 2 weeks ago, the battery will out of power. So still confused me. BTW my auxiliary battery(actually it's a capacitor at the passenger side) got malfunction and auto star/stop didn't work in Dec/2020 and my car was still under warranty, went to the dealer got the new one, but after that. The auto star/stop still didn't work until now. I just thought maybe the dealer turned off the function and I live in suburb so I hate it, every time after I star the car, I'll turn it off manually. Now I realized that was not dealer turn the function off, maybe it has problem... Drive me crazy now.

Can I keep driving it with this message - i have to use the car...just want to make sure nothing serious will happen. I assume if it doesnt start one day then the battery is gone..but wont have any issues if Im driving and all seems fine? pls confirm....the garages are booked for weeks :(

Do you still have your c300? If so we need a video update mileage, maintenance etc.

5 year battery kind of already gave out the answer since most automobile battery needs to be replaced after 4 - 5 years, while very few can last up to 7 years and it will died completely.

🍻🍺🤙🏼🤙🏼

😂 15VAC from a car battery?? That one have built in inverter?