[Kelly66]

Originally Posted by Jeroen

Your starter stop system is disabled as long as the engine isn’t at its normal operating temperature. There are usually a few other safe guards.

Thanks for the links and clarifications on this sticky topic. On my 320d the ASS was not that effective, as in, if my AC was on and I approach a traffic light I would have to turn off the AC to stop the engine.

On my current 330Li, I use ASS always. However, its implemented very aggressively. Even on a cold start i.e. within 2 min of getting out of the driveway if I happen to stop just briefly, the engine would shut off, even if the engine hasn't warmed up. Is the design flawed here or is it because my car is new (< 3 months old)? Is it better to turn off the ASS till engine warms up?

Even though you are a strong proponent of ASS, you too seem to be turning off the ASS at start up. Is it to prevent such cold starts? Do you turn it on after some time if it is indeed beneficial?

Similarly does the auto hold feature lead to extra wear on the brake disc and pads because after a few kms of driving these components would be hot and autohold keeps them engaged and the heat can cause some wear even though there is no friction? I think I saw a post of yours in some other thread that there is no issue with keeping auto hold on, but this question lingers.

[sailorboy82]

Great DIY, I too have a Scorpio N and also Maruti swift with ASS. However i feel Maruti ASS function is slightly better, as there is option in setting where you can adjust it for economy to comfort( AC kept on). I Usually keep it for comfort in summers.
I agree Mahindra ASS is aggressive to use in daily drive conditions, and usually after 1st auto stop, first reaction is to deactivate it. i too had seen the video but somehow decided against sticking up something on the console.

[Jeroen]

Originally Posted by Kelly66

Thanks for the links and clarifications on this sticky topic. On my 320d the ASS was not that effective, as in, if my AC was on and I approach a traffic light I would have to turn off the AC to stop the engine.

That is a bit odd. I would check under what conditions the engine would stop with the AC on. Did you check the owner s manual?

Originally Posted by Kelly66

On my current 330Li, I use ASS always. However, its implemented very aggressively. Even on a cold start i.e. within 2 min of getting out of the driveway if I happen to stop just briefly, the engine would shut off, even if the engine hasn't warmed up. Is the design flawed here or is it because my car is new (< 3 months old)? Is it better to turn off the ASS till engine warms up?

Again, I would like to understand how the system is supposed to operate. It it does what it is supposed to be doing, you should be ok.

Did you check the owner's manual?

Originally Posted by Kelly66

Even though you are a strong proponent of ASS, you too seem to be turning off the ASS at start up. Is it to prevent such cold starts? Do you turn it on after some time if it is indeed beneficial?

I am not a strong proponent or opponent of ASS. I am a strong proponent of understanding stuff in detail and not taking internet myths for granted. Whether you use it or not is entirely up to everybody. I am just responding as I see people giving many technical unsound and factual incorrect reasons why you should not use ASS.

If you don't want it to be used, that is fine, But if that is based on a misunderstanding of how it will damage your engine and components, that's where I object and argue. Make sure you understand the details and don't take everything the internet throws at you for granted.

I often switch off the ASS as we live in rural Netherlands. For the first 3-5 kilometres leaving home, I will have to drive up and down short stretches of very steep dikes. You can't see the traffic on the dike, so you have to be cautious and stop often when you crawl to get near the top. I don't want the engine to stop on me, whilst I'm on a 30-degree incline waiting for traffic to clear.

Otherwise, I tend to leave it on. Again, I don't think it does that much for fuel efficiency. Some reputable organisations such as RAC have tested ASS functions across multiple cars. Their research suggests 5-7% efficiency. But of course, it all depends on what kind of traffic you find yourself in. We try to avoid heavy traffic and congested roads as much as possible. Since we are both retired we rarely need to travel during peak hours. So most of our journeys have no or little congestion. So the ASS feature doesn't get much use and can't get you much fuel savings either. The more you have to stop, the better the efficiency ASS brings.

Originally Posted by Kelly66

Similarly does the auto hold feature lead to extra wear on the brake disc and pads after a few kms of driving these components would be hot and autohold keeps them engaged and the heat can cause some wear even though there is no friction? I think I saw a post of yours in some other thread that there is no issue with keeping auto-hold on, but this question lingers.

As soon as you press the accelerator the auto hold function disengages.

The auto hold function and also for instance cruise control often need to be switched on separately, but they won't engage as such until certain conditions are met. So switching the auto hold is just powering up the electrical and electronic circuits. It won't do anything till you come to a stop (when all conditions are met it will engage the brake) and as soon as you move away it will release the brakes again. The system remains powered but is not engaging the brake anymore.

I strongly suggest you read the owner's manual. I am pretty sure everything is well explained. I would trust the owner manual over the internet anytime, all the time!

Jeroen

[Kelly66]

Originally Posted by Jeroen

Otherwise, I tend to leave it on. Again, I don't think it does that much for fuel efficiency. The more you have to stop, the better the efficiency ASS brings.

Thanks, got it! I too will switch off ASS till engine warms up and then turn it on.

Originally Posted by Jeroen

As soon as you press the accelerator the auto hold function disengages.

The auto hold function and also for instance cruise control often need to be switched on separately, but they won't engage as such until certain conditions are met.

In my 330Li the autohold has to be turned on only once and it works flawlessy. My question is on the wear and tear it causes when standstill in a traffic light. Since the brakes are always engaged, does the heated pads and discs (after a few kms of driving) cause the pads/discs to wear out much more than if autohold was not used. I don't like to keep my brakes engaged in traffic lights, which is what autohold does and hence this question.

[Jeroen]

Originally Posted by Kelly66

Since the brakes are always engaged, does the heated pads and discs (after a few kms of driving) cause the pads/discs to wear out much more than if autohold was not used. I don't like to keep my brakes engaged in traffic lights, which is what autohold does and hence this question.

I’m not sure what you mean with the brakes always engaged?

Autohold doesn’t wear the brakes at all. It engages with the car at standstill and is released upon driving away so no wear none at all.

Also, just as an experiment. Check the temperature of your brakes/rims after a normal trip. Unless you have just braked very hard, you would hardly feel a raise of temperature. Even if you do, that is not a problem at all.

Glazing only occurs, rule of thumb, when the pads reach over 220-240oC. And the effect is most pronounced when the wheels are moving!

There are a few myths on the internet suggesting that holding your brakes whilst at standstill would warp the discs. Bit of an old wife’s tail, at best something that might have happened under extreme conditions in a distant pad.

Same as with ASS. Autohold is part of your total car design. It’s not going to do anything to your car that will make it wear more. It does what it was designed for in the first place.

Jeroen

[PercePtioN]

Does anyone know how to disable or enable features on the Scorpio-N without the help of the service station?

I want to enable TPMS on my car which by default doesn’t come from factory for the z8 select trim. I have seen on YouTube that many are using 3rd party sensors l but I don't want that as it doesn’t work with the Adrenos app.

I have called the service centre but they said they can't help with it, I have seen a guy doing it with his z6 trim Scorpio n. I have seen that people make use of the OBD port and enable or disable features especially on Volkswagen cars in India.
So if anyone knows please do help me!

Thank you

[rroy92]

Originally Posted by OrthodocX

Lol ��. I hope Mahindra doesn't push a patch to alter the switch behaviour. So far all good. An entire day of driving with the ASS reliably disabled without any issues

I hope they push a updated where a AT vehicle needs to be shifted to N instead of being in D for the Auto-Start Stop to stop the engine.



This is the main difference I can notice in the difference in behavior from MT to AT. And with this, the feature will turn from being TOO aggressive to being actually useful.

I hope others can share their opinion and we can together push this towards Mahindra.

@Mods @GTO please help.

[OrthodocX]

Originally Posted by rroy92

I hope they push a updated where a AT vehicle needs to be shifted to N instead of being in D for the Auto-Start Stop to stop the engine.

Attachment 2715820

@Mods @GTO please help.

One can always dream @rroy92 . I hope this happens, but given the way Mahindra is moving forward, i don't think too much thought will be given to XUV700 features 4 years after its launch.

Meanwhile, it's been a month since I permanently depressed the Auto Stop-Start button and cured my depression. So it's time for a short term update:
The sky hasn't fallen, the electronics haven't fried, the infotainment works as before (unfortunately, Alexa is still dumb), the vehicle hasn't caught fire and all is well with the world. A month of not having touched or even thought about the cursed button: pure bliss.

Will update if car auto-destructs.

[Blooming Flower]

Originally Posted by SS-Traveller

I don't understand why people find it irritating to have the auto stop start system do its job.

While I am not at all worried about the wear and tear or other damages to various components as these all are nothing but myth, I really find this feature annoying in B2B peak hour Gurgaon traffic. Reason: Every time the engine wakes up after an auto-stop, the hill hold function also gets activated. That's how the programming is done in the controller. So no easy creep due to the 2 seconds hold up by the hill hold function, and the car leaps ahead after a short delay with gentle operation of the gas pedal. Yes, it's irritating in slow moving B2B traffic, and sometimes unnerving too for AT/AMTs.

P.S. I am getting a custom micro-controller in few days, which will reverse the default action, i.e. with every fresh start ISS will be disabled by default, and by pressing the switch it will be enabled. The microcontroller works in piggyback mechanism, thus no MIL triggered through BCM CAN-bus. Afterall, no need to develop the muscle-memory of pressing the switch every time the car is started.

[avdhesh15]

Originally Posted by sailorboy82

However i feel Maruti ASS function is slightly better, as there is option in setting where you can adjust it for economy to comfort( AC kept on).

Where is this setting in the Maruti? I have a Baleno AMT and would love to explore this option.

[Blooming Flower]

Originally Posted by avdhesh15

Where is this setting in the Maruti? I have a Baleno AMT and would love to explore this option.

The setting is in the infotainment system Vehicle menu. You can switch between economy, comfort etc. mode to play with the auto-stop time and AC compressor cutoff priority. But each mode is also pre-programmed. You cannot disable it completely.

MSIL is providing ASS now from the base variants. One cannot control this unless the variant is equipped with OEM HU (Clarion unit).

[avdhesh15]

Originally Posted by Blooming Flower

The setting is in the infotainment system Vehicle menu. You can switch between economy, comfort etc. mode to play with the auto-stop time and AC compressor cutoff priority. But each mode is also pre-programmed. You cannot disable it completely.

Thanks a lot - will do this tomorrow first thing!