Start / Stop NOT WORKING on your car? 

Thank you! 🙏 I’ve been “getting to the main part of the content” faster and faster over the years so thank you! Glad you noticed! Always trying to edit the videos and improve them everytime! And always open to feedback! I know literally 5 mins ago, 100 subs to go! 🥳🥳🥳

Me too

I've had my merc for 6 months now, I think it has only worked 2 or 3 times during that time! Not that I am bothered as have always found the feature annoying in other cars.

Totally agree

Thank you! Glad you enjoyed it! Thanks for watching!

Thank you! Glad you enjoyed it! 🤓

No worries! Glad you enjoyed the video! 🙏🙏

Thank you! 🙏

Ah no worries! It’s bound to be one of those!

Thank you! Ah interesting! 😊

Thank you! Glad you enjoyed it! 🤓🙏

Haha thank you! 🙏 😊

Ah very nice! Glad you enjoyed the videos! 🤓

@@npoleary I did! The whole playlist was amazing, also idk why but your voice makes it even better JUST ALL AROUND A SOLID 10🙏🏻🙏🏻 Im now in said GLC300 and these have been SO helpful omg, there’s so many stuffy old guys putting these videos out and half of them seem like they don’t know what they’re talking about so I really appreciate the educated way you get information across while being easy to understand even for someone who’s never driven any car in their life lol. Keep on being awesome!💕

Awh thank you! 🙏 Well I’ve got a few Mercedes tutorials lined up soon! And I am thinking another tips and tricks video is overdue so I’ll see what I can do! 😛

Glad you enjoyed the video! 🙏

Oh I see yeah extra accessories and resources might affect it. Better to be safe than sorry though when it comes to dashcams and trackers!

Thank you! Glad you enjoyed it! 🙏

No worries! 🤓🙏

Yep, always turn mine off.

I can save fuel and emissions but of course depends on when it was made. My first car with start / stop years ago took like a whole 2 seconds to start but cars these days start very fast!

Thank you! So the climate control bit, if it’s really cold outside for example and you set 28°C and inside the car is really cold, the car might not do the start / stop until it’s got the temp near where you want it. It’ll prioritise getting you warm first. That and the starter battery will not perform as well in the winter so it’ll need charging up for longer too as you drive round. Same goes for demisting windows, if you put the de-mister on, it’ll prioritise that over anything else.

Thank you! (Depends on the car with the slope thing) but yes there are quite a few reasons as to why! 🤓

I beg to differ. Stop start systems are designed to do so and and there are no reports of repairs caused by it. If you know of any, I’d be very thankful if you could point me to them. Stop start systems usually have a starter-generator instead of separate starters motors and alternators. The savings are very real. My car counts the time the engine is turned off from the time it got last fuelled. It adds up to about 1.5 hours per fill tank! That’s much more than I’d ever imagined.

@@Conservator. The engine is most destructive when starting. When driving in a crowded city with the existing Start-Stop system, the engine starts up to 20-30 times during the driving sequence. It will also be destructive to the turbocharger, battery or starter …

Well my car is now 13 years old and I just replaced the battery for the first time. I don’t have any problem with the stop/start.

@@LukaszOlszewski An engine has the most wear when cold started because most of the oil will have dripped down. The stop/start system will only kick in when the engine is warm. The duration of the stops is too small for oil deprivation to occur. The engine is stopped just before ignition and it will hardly take any effort by the starter/generator to get the engine going again. Do you have reports of excessive wear and tear from stop/start systems?

No worries! Ah I’ve covered that on my lane assist video: www.youtube.com/@npoleary/search?query=lane It’ll only work in certain situations and line types (and usually a couple of settings to tweak if you wanted to as well)

Oh yeah I think I remember that when testing it before, the engine comes on automatically when the car in front moves. It was a while ago since I last used it though!

Oh I will be soon! Just need another EV on test! I’ve had one on review and used it to charge and it’s been great! Think I’m getting the hang of the settings. Just wanted to test it again one last time. At the moment, I plug in, I receive a message to approve the charge (that’s the way I’ve got it set up to stop just anyone using it). And then it charges automatically at night on my off peak tariff. It’s awesome! £5 to charge a car up fully! That’s mad! Honestly wish I bought an EV last year 😅

No worries! Ah that means it’s switched the engine off 🤓

Think it varies from car to car but some might might still. Guess it depends how much fuel pressure the fuel lines have

Hmmm might be worth chatting with a garage or a Mercedes dealer and they can check it out for you!

Awh thank you! Glad you enjoy them! To be honest it’s all self taught! 😅 although I do get a lot of my info from online. In a car I press buttons and see what happens! 😂

@@npoleary that's awesome! Thank you for sharing with me! i wish you the best and will be watching your videos :)

I guess it depends on the car (how much power you’re using / climate control). I’ve been in cars when it’s last 20 seconds but also 2 minutes before. Depends on the battery health too!

​@@npoleary I see. Thank you so much for sharing your experience. 😊

Starter motors these days and including mild hybrid systems are physically designed to do this. If this tech was on cars 20 years ago then yes Start/Stop would cause a lot of wear and tear. But the components used today are designed to actually do it. The average car years ago without this tech would have a starter motor rated for 50,000 engines starts before the starter motor might start to wear and / or need maintenance / replacing. Now they’re rated for in excess of 500,000 because they start / stop more.

Ah yes! A good run would charge it up Well it depends of course how new / how old the car is. Starter batteries can last up to 5 years and even longer these days but luckily when cars are sold from main dealerships, they will usually check the battery health and replace if it’s not at optimum performance for peace of mind. Newer cars draw more power than ever before with all of the tech in them! 🤓

Ah okay, yes I mean it does depend on what mileage you do / how often the car is on. If it’s only very short trips then a trickle charger might be a good investment!

The predicted range in most cars is based on the current average MPG. If you drive it like a hire car you'll get poor range.

Hey CertifiedMrTech, Thank you! Yes I know the stat you mean. Honestly best thing, stop looking at it 😅 let me explain…I promise it’ll make sense! Basically pretty much all cars have a trip computer and usually include a range indicator like on your car (same as mine). It’s really useful however on some occasions you can look down and it’ll say 200 miles and then others 400 miles. The most I’ve seen is 420 ish I think. As GoProflying mentioned it can be down to driving style but the most probable factor is where you’re driving. If you’re never getting above the speed of 40mph, you’ll never get more miles per tank of fuel. This is because most speeds under 40mph will encounter traffic in built up areas with lots of start / stops. If you go on a long trip somewhere, watch what happens when fuel up, that mileage will shoot up. But then when you return to doing lots of smaller trips round town, it’ll very quickly go back down again. It’s just the computer adjusting to where you’ve driven etc so although useful, not always accurate as it doesn’t know what trip you’re going to do next! Range computers will show you usually the last hundred or so miles of your driving etc Hope that makes sense, message me back if you’re still not sure 🙏

@@npoleary thank you so much! You’re the best

Ah interesting, thanks for sharing! Glad you got it sorted though!

Yeah it does save fuel (if start / stopped a lot) and of course emissions but it does check the make sure that it can and will start again. Of course the A/C doesn’t run when the car’s engine is off so when it’s hot summer weather you can just disable it 😛

Can’t ever get mine to work on my 2019 Jazz. Even had a new battery fitted with no joy.

@@robparker1625 that's why my battery is staying put until it conks out.

Hey Mark, ah nice! Well the start / stop or stop / start tech is always controlled using a button (usually with green icon). This is how you turn it on/off per driving session. Same for all cars, don’t think I’ve seen one any different

Oh yeah if there’s something not right with the engine then it wouldn’t do it for sure. That could be a part in it to possibly!

Possibly, I mean it could be worth checking it out. Maybe ask a dealer or garage to have a look when it’s next in for service or something.

Well I guess it depends on how old the battery is, like all batteries they have a finite life span so replacements can be needed from time to time. Although I have seen the message appear on cars when the battery is low so hopefully they’ll be a bit of a warning in advance!

Oh strange, have you taken it back to the garage that carried out the work?

@@npoleary Yes, It went back every time and they fitted a new NOX sensor. The Start/Stop operated for a short time and then spuriously. All this was done under warranty but it was annoying. Change car last year for a GLC 300 Coupe. Love it! No issues.

Well there is the button as well haha 😂

Very true! 🤓

Mercedes are quite clever, as long as you have the car linked to your Mercedes me account (if it’s 2015 ish or newer) it’ll email you if the battery is low. And also it’ll tell you on the screen again roughly 2015 ish or newer 👍🏼

I'm horrified to find that my 12V battery will run down after a few days of not driving. I've now been provided with a trickle charge - the same as I use for my lawn tractor. Should we really be pleased with new technology when we're being taken backwards in time by about 50 years ago when my dad used to keep his Morris Minor on trickle charge????

@@andyb8668 Fact of life I'm afraid with modern electronics. I had same problem with my 2018 C Class. I have improved the situation somewhat by investing in a RFID Key Box that I now put the key in by the front door when I come in. The spare key is also in an RFID Pouch. Apparently one of the reasons the battery drains is that the remote lock/unlock function continues to try to communicate with the key even with the ignition switched off.

Hey @andyb8668, it should last longer than a few days! That sounds like something’s not right for a healthy battery, I’d suggest chatting to a garage or mechanic to get it checked out.

Thanks@@npoleary , it was going to partially charged after 2-3 days, then low charge after another 2-3 days. Leaving it for much more than 1 week was going to critical. But it's back with the dealer now, so fingers crossed!

Think that's what he means regarding the battery being low

Auxiliary battery is the start / stop system 🤓 Unless it’s a battery for something else, a campervan for example may have an auxiliary battery but that’ll power the fridge / freezer / lights etc

@@gavinspringett To my understanding (I am not a technician), the auxiliary battery is a second (smaller) battery, mainly supporting the electronics in the car. Depending on the model, it might be located under the glove compartment or the boot, e.t.a. The main battery (under the hood) supplies power to the started motor and other power intensive equipment, not the auxiliary battery.

Replied to your other message 🤓 Hey davesmith5656, Yeah cars are these days! They have such sophisticated systems! 🤓 Really sorry I don’t know that, out all of the car manufacturers I review and produce content on I don’t think any of them explain that. I would imagine they do most of the work in house, but of course some components are probably sourced elsewhere. For MBUX specifically I ran a quick internet search and found this if that helps? www.luxoft.com/pr/luxoft-and-daimler-codevelop-technology-platform-that-powers-the-mbux-infotainment-system I know they also use NVIDIA for their graphic chipsets too which is pretty cool! In terms of costings, I wouldn’t know you’ll have to ask Mercedes. I do own one but it’s under warranty so if anything did happen it would be covered 👍🏼

@@npoleary---- Thanks. I've watched many videos and I've read many reviews, and all of them, if they bother to get beyond a showroom description, are about engines. The infotainment discussions are limited to features, with maybe only one or two passing mentions of reliability. You have to go to the comments to get any additional info (like how upset people are with them). The manuals for the different years are combined even though the features and functions are different, so even there it's not so easy to figure out what's in the car package. Computers on wheels. Do you happen to know, if you have an electronic shift, if the MBUX, goes down, can you get the car into neutral to have it loaded onto a tow truck? Quality and consistency of dealership service is also a huge issue. If the car is under warranty they probably do a good job and don't "leave something on the table". If it's out of warranty, which shop you take it to is a major decision. I've learned not to trust dealerships, and to choose shops carefully. E.g. take it for an oil change, and a month later the oil pump breaks, get that fixed, and a month later the alternator dies, get that fixed, and a month later a fuel pump malfunctions, etc.. They know what they're doing. I'm thinking about a car kit. No computers, and I know how to fix it myself. Keeping a 60 year old classic is a lot of work.

Well the thing is with reviews in general especially when creating content, most reviewers or content creators or RU-vidrs will only have a short time with a brand new model. I can vouch for this, the shortest amount of time I’ve had with a new car is an hour 🤯 not good! The longest is a week. Unless one was bought, comments couldn’t really be made about reliability long term because of the short time with the cars. I have however bought a Mercedes A 180 last year so I could talk about that but everything’s all good at the moment, and as it should be! It’s brand new and a premium German car. No manufacture is perfect though which is why last year I chose to diversify and cover more brands than I did before to help people make the right choice 👍🏼

@@npoleary ---- When I go to a car review video, I'm looking for (hoping for) more than a walk-around. I never really thought about doing uploads, or how to get permissions or whatever to review various cars, but I do appreciate that the industry is huge, and doing an in-depth on some new model would require a pretty extensive knowledge base to offer relevant comments and comparisons. It's the same sort of thing with surfing videos: they should explain the sea bed formations that produce the waves, and should show some footage of the waves from a distance - but do not. Mostly, you get very good to excellent shots of rides. There, it's very simple, compared to cars, and surfers probably know very well what's beneath them, but still, at best just passing mention of the sea bed under the waves. Your "tips and tricks" are useful! Vids talking about the beauty of grills and stitching and styling are not useful (I can see all that for myself). I do try to empathize with mechanics (technicians) - it's beyond me how they keep up, and it's the same with doctors, having to keep up with new journal articles and new procedures. There may be some summary database on car computer systems and reliability, and some data on whether or not there is partial failure or only comprehensive failure.

It depends on the car so you may have to ask the manufacturer 🤓 Some cars have two batteries, some have one battery that does it all 👍🏼

Good Evening Mr Jack 😜

If you were manually turning the engine off with the key on a car that wasn’t designed for it then yes you would wear it out. But on cars that have start / stop tech they are physically designed for it. They have larger rated batteries, the starter motor itself is rated to have more cycles in it’s lifetime, the oil used in those particular engines are of different texture to enable it to flow round the engine further and the whole system in a car checks to make sure that it’s physically capable of starting again while in traffic. If you’ve stopped and started a few times in a row, it won’t do it because the battery might be a bit lower. So it’ll hold off from doing it to recharge.

True but sadly not many people have access to the exact oil temp on their car, mine certainly doesn’t! However…I have driven a couple of cars before that do have it!

Hmmm that’s strange I’d suggest getting a mechanic or a dealer to check it out. They’ll know what to look for. The button should at least toggle on / off

@@npoleary the button only works when I start the engine for a few seconds. Very strange

I’d defo suggest getting it checked out, you should be able to use the button whenever you like.

Very true! I’ve seen that before! 🤓

No sadly not, it’s emissions requirements that manufacturers have to have it auto enable on an engine start but it can be switched off per session if needed.

Thank you for the reply@@npoleary

​@@thinneshmuniandy7200I have Ford Kuga. I hate this oeice of kit. Hardly ever works at all. But i can turn it of permanently by going into settings.

No!

What the battery for the car? Absolutely not, that sounds like a battery drain or something. I’d suggest chatting with the dealership or mechanic (whoever’s looking after it for you) and get them to test a few things!

Ah that’s true! The driving mode can make a difference too!

The hood ☺️

I would ask them to do a battery health check and see if there’s a battery drain. Although I should add I’m not a technician or anything like that so I’d ask them to take a closer look. Driving 40km a day should be plenty!

Which one? The one where I bought my car?

@@npoleary Yes please, and can you tell me the name of the dealer that you do the review in?

Mercedes-Benz of Poole is where I have filmed a few videos but they’re not all filmed there sometimes it could be a car from Mercedes directly. Mercedes Poole is also where I bought my car! 😎

@@npoleary Thanks a lot!!

Yeah exactly 🤓 It’ll help with a few start stops (and I mean quite literally back to back) but if the voltage drops too low then it’ll stay on for a little while to charge back up. Quick succession I mean is literally one after the other, if it’s spread out over a few minutes or so then it’ll be able to do a few.

There’s a good article on it here: www.linkedin.com/pulse/can-you-use-startstop-battery-normal-car-jerman-lin? In short yes they are more expensive, the batteries are larger in capacity and are physically designed to cope with frequent stop / starting. It’s not necessarily double though, that depends on the car manufacturer.

Oh sorry if I didn’t make that clear, very few cars don’t know if there’s a traffic light or a junction there for the start/stop system. I just used it as an example. Start / Stop will work anywhere as long as the conditions are right 🤓

I’ve heard that too, I saw a RU-vid video test done on it. However not sure with engine tech these days if it’s still relevant. It might be! But I left it out just in case 🤓