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Start/Stop...how it works.

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Mandp, sorry to be off topic but are you on the Mazda 6 Owners' Club forum? Your username is different (iirc) but from a few things you've said on this forum I keep strongly suspecting you're the same guy I spoke to over there when I had my 6 (mostly about biofuels/diesel)? The chap I'm thinking of also has a soul red auto, sport nav iirc. Sorry to prt but it's been bugging me a bit and I keep forgetting to ask lol. PM if you'd prefer.

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  • I totally understand why the brake lights stay on with auto hold as the braking system is still engaged etc etc.    The highway code clearly states one should use the parking brake in stationary tra

  • two modes: 1. normal(for me), shut down engine just before stop and start when remove foot from brake if brake pedal touched softly then prevent shut down engine 2. with Autohold activated,  shut

  • If there's someone sitting behind you (especially at night) I would say yes. Sitting at a set of lights that you know aren't changing for a while, for example. 

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Mandp, sorry to be off topic but are you on the Mazda 6 Owners' Club forum? Your username is different (iirc) but from a few things you've said on this forum I keep strongly suspecting you're the same guy I spoke to over there when I had my 6 (mostly about biofuels/diesel)? The chap I'm thinking of also has a soul red auto, sport nav iirc. Sorry to prt but it's been bugging me a bit and I keep forgetting to ask lol. PM if you'd prefer.

Yes I have been on the Mazda6 forum for quite some time. My username there is `xjaguar`. But I have an SEL Nav. I do remember discussing fuels a while back.

Yes I have been on the Mazda6 forum for quite some time. My username there is `xjaguar`. But I have an SEL Nav. I do remember discussing fuels a while back.

 

Ah, thought so. And yes, that's the same year and trim as my previous car then. The S3 that's replaced it is a wonderful car, and far superior to the Mazda in some ways... but the driver involvement from the chassis and steering when pressing on aren't a patch on the Zoom ZoomTM. Win some, lose some. :)

Edited by Derv

I have diesel DSG. Engine cuts out when I stop, but starts again when I come off break, how do I get it to auto hold until I hit accelerator?

  • Author

Ah, thought so. And yes, that's the same year and trim as my previous car then. The S3 that's replaced it is a wonderful car, and far superior to the Mazda in some ways... but the driver involvement from the chassis and steering when pressing on aren't a patch on the Zoom ZoomTM. Win some, lose some. :)

How strange...the car you had is the same as the car I have now, and the car you now have is EXACTLY the same as the car I ordered last October (in Petrol Blue). Unfortunately due to a changing financial situation I had to cancel it last November. Its now sitting in the showroom in Peterborough and I'm still financially linked to it...but that's a different saga!

My situation has now improved somewhat so I'm again looking at ordering a new Superb.

Are you pleased you made the change from the Mazda6 to the Superb?

Regards

Mike.

How strange...the car you had is the same as the car I have now, and the car you now have is EXACTLY the same as the car I ordered last October (in Petrol Blue). Unfortunately due to a changing financial situation I had to cancel it last November. Its now sitting in the showroom in Peterborough and I'm still financially linked to it...but that's a different saga!

My situation has now improved somewhat so I'm again looking at ordering a new Superb.

Are you pleased you made the change from the Mazda6 to the Superb?

Regards

Mike.

Can you not get the one at Peterborough even though you originally cancelled but is just sitting there unsold?

  • Author

Oh yes I could.

But...

I ordered the car with £3,000.00 of options and once I cancelled and to make it easier to sell on (not everybody likes the options I specked) the dealership cancelled my options.

So now it is not the car I ordered.

Oh, okay....hopefully you wont have to wait too long.

How strange...the car you had is the same as the car I have now, and the car you now have is EXACTLY the same as the car I ordered last October (in Petrol Blue). Unfortunately due to a changing financial situation I had to cancel it last November. Its now sitting in the showroom in Peterborough and I'm still financially linked to it...but that's a different saga!

My situation has now improved somewhat so I'm again looking at ordering a new Superb.

Are you pleased you made the change from the Mazda6 to the Superb?

Regards

Mike.

That is a coincidence! This forum seems prone to serendipitous happenings. With respect I'll reply properly later on the computer, I'm on my phone having a quick browse whilst visiting the in laws and wouldn't do you justice replying on this thing.

  • 2 weeks later...

Had to revive this thread now I've got my car and tried it for myself, up to that point I thought it couldn't be that bad but it is truly hateful system.

I had a 2012 Audi A6 with CSV 'box and expected my DSG to behave in a similar way, only cutting the engine when the car was stopped and the brake held relatively firmly, release the brake and the engine was running before you could get on the throttle ready to go.

The skoda system is far too keen to cut out, and as has been said, while the car is still moving! often when you're stop start in a que and don't want it too. A light press of the brake to stop it cutting out is barely enough to hold the car let alone bring it to a halt.

When you are stationary with the engine off, it would be nice for the car to move when the throttle is pressed, not a delay for the engine to start and seem confused to get up to revs.

I hope the pressure on the brake peddle can be adjusted via the dealer / VCDS as its unbearable as is.

Took some getting used to and yes I do feel that somethimes the system stops the engine too often but on the whole once you get used to it, it works as it is supposed to. As soon as I lift my foot off the brake the engine immediately restarts and is ready for my foot to hit the accelerator.

 

For the first time today I even tested the traffic jam assist. The total stop came as a bit of a hair raiser but the start and the move forward worked very well. ACC activated at 70 km/h. Start/stop was in this instance quite OK for me.

Got the car this morning and had a good long (all day) pootle about.

 

Start/Stop kicked in at 1mph but I am used to that from my daughters Fabia but no auto hold, I think I may have to enable that somewhere, so as I took the foot off the brake the engine started and putting the brake back on didn't stop the engine.

 

Is traffic jam assist a standard fit or is it an extra ?

I hope the pressure on the brake peddle can be adjusted via the dealer / VCDS as its unbearable as is.

 

Doubtful, but VCDS can certainly disable it completely.

Doubtful, but VCDS can certainly disable it completely.

I wonder what the trigger is, it's obviously pressure sensitive, it could be a simple non adustable or preset on/off sensor or it's a bit more intelligent and is software controlled, but as you say, it may not be accessible.

What is adjusted to turn it off with VCDS?

I noticed today it works differently depending on if auto hold is on or off. With AH off it acts more like the Audi system, restarting the engine when releasing the brake rather than waiting for a press of the throttle.

Still far too keen to cut the engine though.

What is adjusted to turn it off with VCDS?

 

The voltage in which start stop works is adjusted from 7.6v (as std) to 12.1v... mine has never cut in since I changed it.

The voltage in which start stop works is adjusted from 7.6v (as std) to 12.1v... mine has never cut in since I changed it.

Is that just general system voltage?

  • Author

With AH off it acts more like the Audi system, restarting the engine when releasing the brake rather than waiting for a press of the throttle.

 

 

Y-see, to me that's crazy.

That means if you want the engine to remain off (while waiting for the traffic or the train) you have to sit there with your foot on the brake...at night time blinding the bloke behind you with your brake lights!

Y-see, to me that's crazy.

That means if you want the engine to remain off (while waiting for the traffic or the train) you have to sit there with your foot on the brake...at night time blinding the bloke behind you with your brake lights!

 

Yeah but conversely with autohold activated you can take your foot off the pedal (because the brake is automatically held)... However the car keeps the brake lights on anyway, as it uses the footbrakes not the handbrake (for the first few minutes anyway). So.... :) The only way around that is to engage neutral and pop on the handbrake yourself, but (1) it's a faff and (2) you lose start/stop. It's really no big deal, I just leave AH active and only turn it off for manoeuvring on creep, eg parking in a tight spot.

Yeah but conversely with autohold activated you can take your foot off the pedal (because the brake is automatically held)... However the car keeps the brake lights on anyway, as it uses the footbrakes not the handbrake (for the first few minutes anyway). So.... :) The only way around that is to engage neutral and pop on the handbrake yourself, but (1) it's a faff and (2) you lose start/stop. It's really no big deal, I just leave AH active and only turn it off for manoeuvring on creep, eg parking in a tight spot.

Second that. And at predictable longer stops at traffic lights or rail crossings etc... I do a quick pull up of the parking-brake switch and provide the drivers behind me the courtesy. Otherwise, the Autohold on our Superbs is simply a fantastic piece of engineering!

I happily pull up at the lights and press the brake pedal hardish to stop the engine, my auto hold is on with the green indicator on the dash, then I just press the handbrake button to stop blinding those behind.

As traffic lights change give a little tap or squeeze of the accelerator, gets the engine back on then continue with a gentle squeeze of the throttle and away nice and smoothly.

I happily pull up at the lights and press the brake pedal hardish to stop the engine, my auto hold is on with the green indicator on the dash, then I just press the handbrake button to stop blinding those behind.

As traffic lights change give a little tap or squeeze of the accelerator, gets the engine back on then continue with a gentle squeeze of the throttle and away nice and smoothly.

 

I didn't think it'd work as smoothly as that given how it behaves in neutral (i.e. if you 'interfere'). I'll give it a go tomorrow, cheers! :thumbup: It's not really an issue in the day time anyway, but as an advanced driver I won't even indicate while stationary at lights at night to save the other driver's eyes, yet the autohold is blaring LED brake lights anyway... This approach would solve that particular conundrum. A week in and still learning about the car lol (yes I've RTFM but it's in Chinglish at best).

I had never driven a DSG in my life before a 10min test drive then buying my Golf.

I had similar issues with jerky starts after stop/start etc (use to just press the accelerator and it would start/select gear and jerk away all in one horrid few seconds)have mastered it to such a fine art with the radio on my wife doesn't even know when the engine is on or off.

And also experimented with the brake light issues at night, first did the into neutral but car would restart the engine!! Which annoyed me and then whilst sat there in a long traffic que just pressed the handbrake button and the bloke behind gave me a thumbs up, everyone is happy and it takes about a second.

Do it all the time now :)

Edited by Defenderben

Reading this thread frightens me to death, light touch this and something happens, heavy touch and something different,  then the option of touching brake pedal clutch or accelerator and all presumably, electronically controlled, so what happens when  that goes  up the swanee, which it will do in time.  What the hell is wrong with  a pull up handbrake, normal functioning engine, no on or off's.  Is it possible to permanently  disengage  the on/off system  . If one is stuck somewhere for any length of time ( level crossing for example ) , manually turn engine off till  traffic moving again, what's wrong with that?. I notice the batteries for on/off engines cost much more than the normal ones and what wear takes place with all the stopping and starting. Starter motor, ring gear on flywheel?. The system may be alright  for  situations where stopping does not happen often, but get stuck on the North Circular west-bound  from 4:30 onwards any afternoon and battery be flat by the time  you get to Hanger Lane gyratory system

Reading this thread frightens me to death, light touch this and something happens, heavy touch and something different,  then the option of touching brake pedal clutch or accelerator and all presumably, electronically controlled, so what happens when  that goes  up the swanee, which it will do in time.  What the hell is wrong with  a pull up handbrake, normal functioning engine, no on or off's.  Is it possible to permanently  disengage  the on/off system  . If one is stuck somewhere for any length of time ( level crossing for example ) , manually turn engine off till  traffic moving again, what's wrong with that?. I notice the batteries for on/off engines cost much more than the normal ones and what wear takes place with all the stopping and starting. Starter motor, ring gear on flywheel?. The system may be alright  for  situations where stopping does not happen often, but get stuck on the North Circular west-bound  from 4:30 onwards any afternoon and battery be flat by the time  you get to Hanger Lane gyratory system

 

It's really very simple in reality, and nothing to be concerned about. After a couple of hours driving it you'll wonder how you ever did without. There's not much to go wrong mechanically as it's pretty much the same gubbins, but with the ECU pulling the handbrake cable instead of you. Stop/start tech is a must these days simply due to the flawed NEDC tests. They wouldn't pass (or at least do anywhere near as well in) MPG and emissions testing without it. You very quickly get the hang of the electric handbrake and stop/start, it makes for a very easy and relaxing drive, too. FWIW I was vehemently against electronic handbrakes, stop/start and whatnot for years. Then I drove one, and the worries disappeared. Sometimes the thought of change is worse than the change itself, especially if you're the sort (like me) who likes an involving car, and wants to really drive it as opposed to being driven.

 

As for uprated batteries, starters and so on - again nothing to be concerned about. A couple of extra quid for a better battery, perhaps, but the technology has been in cars for well over 20 years now. Yes it's only recently gone mainstream but the OEMs have been using it on and off for donkeys (Polo in the late 80s / early 90s for example). It's never caused any issues longevity wise. The system will refuse to cut off the engine once the battery is low on charge, so getting a flat battery is a non-issue.

 

Many OEMs (including Mazda, but I don't know about VAG) also utilise the spark plugs to help restart on petrol models, rather than just cranking the starter. When the ECU knows it's about to stop the engine, it'll draw in a cylinder of fuel and air and hold it there, compressed and ready. As soon as the driver indicates s/he wants to pull away the system simply fires the spark and off you go again. As such, strain on the systems is minimal.

 

I do wonder about the turbo at times though, for example after caning it for two hours through the Dales and then hitting a junction or whatever... The engine cuts out and restarts again in a matter of seconds, but for those seconds you've just cut oil to the cherry red turbo. Never seems to have caused anyone a problem though. *shrug*

Edited by Derv

It's really very simple in reality, and nothing to be concerned about. After a couple of hours driving it you'll wonder how you ever did without.

 

 

I do wonder about the turbo at times though, for example after caning it for two hours through the Dales and then hitting a junction or whatever... The engine cuts out and restarts again in a matter of seconds, but for those seconds you've just cut oil to the cherry red turbo. Never seems to have caused anyone a problem though. *shrug*

 

               Thanks, a very informative answer. As for the turbo, a very good point. I remember reading some while ago  it is very unwise  for example  when  having done a fair mileage and at good speed on say a motorway and pulling into a petrol station or similar,  to switch the engine off as the turbo is immediately deprived of  lubrication, but  to allow the engine to idle for a short while so as  to let the turbo  adjust to the change in circumstances.

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