I loved the Start/Stop system on my lately departed Ignis - which was coming up to its sixth birthday and still on the original battery !!!!!

 

The solution is the same as other Suzukis -

https://www.suzuki-forums.com/threads/how-to-disable-start-stop-system-permanently.282047/?post_id=1651293#post-1651293

 

I personally tried to attach a neodymium magnet to the sensor at the minus pole of the battery.
The sensor evaluates this as a low battery and disables Stop/Start.
But be careful - the battery is permanently charged with a voltage of 14.4 V and does not work with the help of a hybrid drive.

 

I personally tried to attach a neodymium magnet to the sensor at the minus pole of the battery.
The sensor evaluates this as a low battery and disables Stop/Start.
But be careful - the battery is permanently charged with a voltage of 14.4 V and does not work with the help of a hybrid drive.

View attachment 116158

I attached ONE magnet a little smaller than that one in the picture in the same place, in my Celerio, and it made zero difference. The damn stop start still works

 

I'd suggest a dob of silicone or the like on clean surfaces to keep the magnet in place.

 

The magnet holds itself with great force without sticking.
Do you have the opposite experience?

 

No, I don't have the system, but in my old age experience adding extra very cheap and undo-able Redundancy is not a bad thing because of Murphy's Law - no other reason! In other words - What could possibly go wrong without an easy backup plan?

 

Key in, clutch down, turn key, hit start/stop-off, engage first gear, handbrake off, clutch up, pedal to the metal. Muscle-memory is a wonderful thing. And I don't have to remember anything. Except to close the door sometimes.

 

Key in, clutch down, turn key, hit start/stop-off, engage first gear, handbrake off, clutch up, pedal to the metal.

That's interesting - you have a car with auto start/stop that doesn't have keyless start?

 

I had a Hyundai I40 up to 12 months ago and ran it for a few months with / stop start activated and thereafter with stop / start permanently disabled. There was no significant improvement in fuel consumption perhaps due to driving type. Widely variable claims are made for the fuel benefits of stop / start - it all depends on the mix of driving types - 3 to 7% improvement seems to be a realistic achievement. I didn't disable the stop/ start because I disliked it - rather, I was concerned about protecting the turbocharger. Parts of these units can reach 800 deg C (950 deg C on diesels) and switching the engine off without allowing some idle time (particularly after travelling at high speed) degrades the oil contained within the turbo. Complaints of early turbo failure, fouling of EGR valves and damage to DMF's are often linked to routine use of stop / start.

The reason why manufacturers don't fit a permanent override facility is because of the WLTP largely theoretical measurement of official fuel consumption. The test would be done using stop / start if fitted and giving the facility to permanently override may well result in accusations that the official test results were skewed.

 

The reason why manufacturers don't fit a permanent override facility is because of the WLTP largely theoretical measurement of official fuel consumption. The test would be done using stop / start if fitted and giving the facility to permanently override may well result in accusations that the official test results were skewed.

If we consider Suzuki's approach to disabling auto stop/start as "temporary", from the point of view that it defaults to on every time the car is started so that the driver has to disable it on every start, could disabling it from a menu item so that it defaults to off, and remains disabled on every start be considered "permanent"?

If that definition of permanent is acceptable, then there are vehicles out there on which the manufacturers fit a "permanent override facility".

 

I drive cars for a living that is, I deliver cars throughout the UK whether they be ex hire cars, lease cars, auction sales or Motability cars. Some stop + start systems are a nightmare in that the car lunges on restart or there’s a delay and it’s often the more prestigious cars that’s the problem. To stop surprises I always switch off the stop + start and dearly wish that I didn’t need to do it every time because I sometimes forget. Of all the different cars I drive I’ve never come across one where the stop + start can just be switched off permanently. Which are the cars you talk about that have this? So glad my Ignis is plain straitforward with no stop + start.

 

Of all the different cars I drive I’ve never come across one where the stop + start can just be switched off permanently. Which are the cars you talk about that have this?

You're in the UK, so it's not likely you would have come across this one - a GMC Acadia, and not all of them have it.

Back in 2022, I was in Florida, and my daughter & I were renting what initially looked like identical white Acadias, mine had a V6, hers was a four cylinder, the V6 had it buried in the menu, the four did not.

I've driven quite a variety of cars with auto stop/start and as you say, some are an absolute nightmare, the worst for me have been the Chrysler Pacifica minivans, and the best a Volkswagen Atlas, it was like that Atlas could read your mind, just think about moving and before the thought was fully formed the engine would be running. Generally speaking they sense the pressure in the brake system and you can "force a re-start" by fractionally easing the pressure on the pedal, the trick is in knowing just how much to ease it by - too much and there's not enough brake to prevent movement when the engine re-starts.

I wouldn't think that delivering cars would give you the chance to "fully explore" the features, and I certainly wouldn't want to be changing the settings in the menus, I'm also curious as to why you would be delivering them by driving them, any time I've needed a car "delivered", which I've had it done a couple of times, it's been on the back of a car transporter, the only time the "delivery guy" has been behind the wheel has been loading & unloading.

 

Is it not possible to disable Start-Stop-System with a OBD-Tool?

 

Not that I've found.

 

There's loads of ways to disable a stop / start via the OBD. One of the common methods is to change the coolant target temperature value to a silly high value. Whether you could access the facilities without the Suzuki scan tool is another matter! Nothing could be simpler (and easier to reverse) on the Ignis than the magnet trick - why would you want to do anything else?

 

.......Nothing could be simpler (and easier to reverse) on the Ignis than the magnet trick - why would you want to do anything else?....

...maybe I'm wrong ...because I'm not sure if it is the best for the battery when the loading-regulation is deactivated.....

 

It's not "load-regulation", I don't even think it's "load-sensing", it's more likely to be "charge-level-monitoring", and vehicles have been operating without that for literally decades.

What it is, is a current transformer installed on the battery negative cable where it can monitor the current flowing through the battery (or more specifically the battery negative cable) - current flow through the battery (or the cable) occurs at two points during normal operation, when the car is being started and when the battery is being recharged after the car has been started. During normal operation, the entire electrical load of the vehicle is expected to be supplied by the vehicle alternator.

So that it is clear, there are other circumstances under which current will flow, and some of these can be considered normal - if, for whatever reason you choose to sit in the car with the engine off listening to the radio, or perhaps you leave the car with the hazard lights flashing.

By monitoring the charge current through the battery, the auto stop/start system can determine the approximate state of charge (charge level) of the battery, and if it senses that battery as being low, because the charge current has not tapered off, it will not enable auto start/stop.

The battery charge current is a function of the battery terminal voltage, which is a function of the battery state of charge and the alternator output voltage, which is a function of the load on the alternator. Assuming the alternator's internal voltage regulator to be functional, the system should "self regulate" as has been happening for many, many, years.

 

.....thx for your reply. So if you think this has now influence to the charging behavior I'll give it a try.
I thought the charging power will be also controlled by a control unit in modern cars .....

 

I thought the charging power will be also controlled by a control unit in modern cars .....

It is, and has been for several years - so called "smart alternators" reduce the alternator output to reduce the mechanical load on the engine under specific conditions and when the alternator output is reduced the system voltage drops and the "excess output" which is what would be charging the battery goes away. This however is unrelated to the battery state of charge sensing and is done with a current sense element in the main fuse panel.

One senses current draw of the vehicle, the other current flow through the battery.

 

...so,... I mounted three tiny neodymium-magnets on that plastic thing at the minus-pol of the battery.
Start-Stop is gone!
No warning lights in the cockpit.
I drove now 100km and no side effects so far.

 

Start-Stop is gone!

With this hack, you should be able to buy a much cheaper not stop/start spec replacement battery if ever needed.

 

These are very large magnets. Can you open the bonnet? 😀

 

Thanks a lot for this precious input. Just to have a full-comprehensive TD...and to make my life easier , could you please put a link where to buy those neodymium magnets online?

 

could you please put a link where to buy those neodymium magnets online

eBay

 

I don't speak Italian but I have internet (Non parlo italiano ma ho internet) - magnete al neodimio - Google Search

 

Just google it. I. e. type in a browser "neodymium-magnet". I have found a guy who is seling them in my neighbourhood. But you can find them on Amazon, Ali express, eBay...

 

@MilanT Well...I have to say that this is not at all the nicest answer I ever received to my first post in a forum...pointless aggressive and even tough to understand the relation between language and internet availability

Anyway...already bought those magnets on ebay, thanks @2000IGNIS

 

Sorry, that wasn't meant to be aggressive. I'm more of a passive person and just trying to give advice.
Apparently it's the language barrier and google translate.
I speak only Czech. I can't speak English and Italian.
I was just trying to help with the internet link.
I am afraid to formulate my sentences correctly so that the translator translates them correctly and they are correctly understood by native speakers.
I was the first and only one to send you the eBay link.

 

Am I wrong in thinking that a lot of this discussion is irrelevant because the Ignis start stop system works through the Lithium Ion battery and separate dynamo/motorand not through the car's main battery?

 

You're wrong. The Li-ion battery only assists the internal combustion engine during acceleration. The Li-ion battery never starts the engine via the starter or ISG.
Watch the video to see how it works.
The Stop/Start function works even when the Li-ion battery is discharged.
Even cars without a hybrid drive and without a Li-ion battery have the Stop/Start function.

 

Ah, I see! But it uses a different starter motor. Why is that?

 

it uses a different starter motor. Why is that?

I have read the functions of engine starting and electrical generation have been combined to be done by the one unit which saves space and weight.

 

FYI, there are a number of high end scanners that have to option of turning OFF the S/S function..

 

hello, can you indicate exactly what scanner removes SS. Thank you

 

I'd also be very interested. The methodology for many cars such as pre 2021 VW's is widely publicised but I've never seen anything relating to Suzuki. Please give examples of the high end scanners to which you are refering. It's usually done by getting into the adaptations menu and changing the stop / start voltage to an out of range value.

 

Contact XTool, ask them if Suzuki is compliant..

 

It's you that made the claim that certain scanners could be used tio turn off stop / start. Usual off the cuff remark, absolutely no foundation to the claim made.

 

I can do it for my market area, yours may differ...

 

As forums go, this one is excellent. In the short time I've owned an Ignis, I've gleaned loads of information from the forum. Like some other forums, theres always someone who feeds miss-information and makes claims that are not substantiated. Usually the individual has never owned, seen or worked on an Ignis model in question yet is intent on a pretence. Why do you do it I wonder?