ESP - when should it be turned off? - Ben79
Most cars are now fitted with ESP. Most cars I have seen have an off switch. When is it best to switch off the ESP?

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ESP - when should it be turned off? - Hamsafar
Half past two on a Tuesday.

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ESP - when should it be turned off? - Hamsafar
Half past two on a Tuesday.
ESP - when should it be turned off? - b308
If you mean the anti slip control its more a question of when you have it switched on rather than off... I found it very useful in that iced-over snow a few years ago, but other than the odd occassion when setting off from a roundabout in the wet i didn't find any real need for it... if anything when it was switched on it blunted the performance. I suppose I mustn't drive fast enough!

Edited by b308 on 08/02/2009 at 09:45

ESP - when should it be turned off? - Halmer
When you take your car on a race track.
ESP - when should it be turned off? - Old Navy
Is that the M25 or North circular?
ESP - when should it be turned off? - gordonbennet
I've checked in the Hilux handbook and ESP (extra sensory perception?)is not listed, exactly what am i missing out on?
ESP - when should it be turned off? - Manatee
I've checked in the Hilux handbook and ESP (extra sensory perception?)is not listed exactly what am i missing out on?


I know that's a comedy comment Gordon but I'll respond anyway while my coffee goes down.

I think ESP has become a generic term for a whole variety of more or less proprietary systems for keeping the car going in the chosen direction when traction is broken. It includes traction control, which itself comes in different flavours (e.g. braking the spinning wheel and/or cutting the power).

Judging by B308's view, maybe the BMW version (ASC?) isn't very good, but then it has a lot to do in slippery conditions;-) The "VSA" on the CRV appears to work well and I never gave it a thought this week save when the yellow light flashed occasionally. Had I got "stuck" or anywhere near it, I would have tried turning it off but that never happened.

The systems have evolved continuously and sometimes incorporate "trailer stability assist".

As Clarkson insists on demonstrating on every Top Gear, if you want to drive on the limit or get opposite lock on, you have to turn it off. I can't see why you would you do that on the road, unless you were well away from all other road users including uniformed ones.

en.wikipedia.org/wiki/Electronic_stability_control
ESP - when should it be turned off? - gordonbennet
I know that's a comedy comment


Well OK it was a bit tongue in cheek, but this driving aids thing is getting a bit beyond the joke, considering we seem to have managed for donkeys years without the technical bits, and something else to go wrong.

As an aside, if drivers find these innovations indespensible, why the animosity to those who use advanced winter (cold weather) tyres?, i digress.

Right so its some form of traction control, i really didn't know, well i've got that dubious fitment on the truck, and when the going gets bad i have to turn it off or grind to a halt, let me explain...

Going up a hill in the snow, vehicle senses a drive wheel slip so immediately cuts the power, power comes back on after a few moments, but we need a lower gear by then, ah but the automated manual box won't respond quickly enough, so i override it, and block shift 3 gears lower, so the wheel slips and off we go again, or rather we don't as by then we are at stall situation, as the speed drops faster than the idiotic gearbox can respond.

Now having had the pleasure of all this electronic rubbish being of no use whatsoever, i turn off the TC when conditions are bad, and always drive the thing in manual gear override anyway (life's too short to wait for the box to do its job, Pat pda will know exactly what i mean, she has the same gearbox).

So i'm approaching that hill properly, a slip on one drive wheel will develop, but i keep going with balanced throttle to maintain momentum, as the speed diminishes on the hill, i'll pre plan a block shift down of 2 or 3 gears (remember this a automated manual and will not be hurried), and the power will be kept constant as the TC's off.
And by the way, i don't use the diff lock as a locked drive axle causes the driven towing vehicle to jack knife sideways as with both drive wheels spinning identically it causes the vehicle to pivot.
(Diff lock should only be used when 1 wheel is slipping and the other has found traction).

I promise you it works, and these dubious electronic devices are half the reason the roads have been strewn with stuck lorries the last few days.
Some of the newer drivers don't have that 'by the seat of your pants' feel for whats happening at the wheels, that applies to cars as well.

The one fitment all decent vehicles should have in my opinion is a limited slip diff, they really do work.
ESP - when should it be turned off? - Manatee
I guess articulated lorries are a special case - most of the momentum is with the trailer and if the driven wheels slip there's a high chance of a jack-knife? At least that seems to be the case judging by the 'lorries dancing on ice' performances in Hemel Hempstead this week (several at the same downhill roundabout).

I have found the cut-the-power type of traction control fairly pointless in the past - it doesn't sound very helpful in a heavy commercial if it cuts the power below what you need to balance the slip, but I haven't had that experience.

Like you Gordon I regret any loss of 'feel', but there is reportedly a major reduction in accidents with cars (not lorries) fitted with ESC so it's difficult to argue with that if it's true.

My driving nightmare, since it happened to me in 1976, is the driver coming the other way round a bend going straight on and hitting me. On that occasion I was knocked out and had a big cut on my head, and a gash on my leg that still itches, but it could have been very different. That's the kind of accident that ESC should prevent, up to a point, though I doubt it would have worked on the Marina with bald tyres that hit me!
ESP - when should it be turned off? - gordonbennet
1976 is the driver coming the
other way round a bend going straight on and hitting me.


Lucky escape, though you probably didn't think so at the time.

Had an interesting discussion at a dealers last week, the 2 mature sales chaps were discussing with me that there seems to be a feeling among some drivers that have had prangs whilst braking that they have suffered some form of brake failure, and these last few days have seen a sharp increase in prangs.

The range of cars involved have more abbreviated safety braking/stability aids than you could shake a stick at.
But i wonder whether the drivers of these modern wonders have somehow lost the common sense reasoning that they are still on a total road footprint of a large dinner plate, and all the electronics in the world won't make any difference to that, and the car will only ever be as good as the total grip afforded, which as we know on packed snow/ice is extremely low.

Maybe there is benefit with these systems in normal conditions to many drivers (and i wonder just how many accidents they'd have without them, judging by the violent braking/cornering i see on wet roads), though i'm wary of statistics, but these abnormal conditions need some old fashioned feel and dare we say skills and thought to overcome.
ESP - when should it be turned off? - John S
ESP is far more than just traction control and I can't see any reason why a safety feature like that needs to be turned off on the roads.

JS
ESP - when should it be turned off? - Pat L
My ESP cut in the other day and I think it prevented me from skidding as I turned into a road covered in snow. It's the first time I've noticed it - a little red skiddding car symbol was flashing in the display. I'm not sure I'd like to turn it off!
ESP - when should it be turned off? - welshlad
i have ESP on my car but as far as i know its automatic and cant be turned off
ESP - when should it be turned off? - smokie
Ford Mondeo manual - "The ESP supports stability when the car starts to slide away from your intended path. This is performed by braking individual wheels and reducing engine torque as needed. The system also provides an enhanced traction control by reducing engine torque if the wheels spin when you accelerate. This improves your ability to pull away on slippery roads or loose surfaces, and improves comfort by limiting wheel spin in hairpin bends"
ESP - when should it be turned off? - mike hannon
If you can't get round a hairpin bend without spinning a wheel you don't need ESP or whatever it is, you need driving lessons. (Or 4-wheel steering of course).
If I am driving on snow and ice I think I would prefer to turn off a system that decides to brake individual wheels without warning me - or stay at home and cast admiring glances at my nice new car that thinks it knows better than I do while it sits safely in the garage.

Edited by mike hannon on 08/02/2009 at 11:34

ESP - when should it be turned off? - captain chaos
It should always be turned off in torrential rain. I know of two friends who have been spun off the motorway after going through standing water with traction control on. One was a BMW M3 and the other a Jag XK8. My owners handbook advises against the use of cruise control in icy conditions too.
ESP - when should it be turned off? - Manatee
>>It should always be turned off in torrential rain.

Are you sure that's not just cruise control? I'd have though torrential rain was one of the conditions when ESC would be of most benefit?
ESP - when should it be turned off? - madux
My car has a gadget that includes ESP, ABS, Cruise Control, AirCon, speedlimiter, revlimiter,
Econometer, Vehicle Proximity Sensor, Lane diversion sensor, Auto windscreen wipers, light-sensing headlights, automatic indicators, GPS, compass and public toilet detector.
Trouble is, I can't turn her off.
ESP - when should it be turned off? - captain chaos
Are you sure that's not just cruise control? I'd have though torrential rain was one
of the conditions when ESC would be of most benefit?

I would have thought so too, Manatee, but I was a passenger in aforementioned M3 and one night we were on the motorway and hit standing water. You'd expect the car to slow down, which it did, but the ESC kicked in and put the back end of the car out as if we'd been hit. Scary stuff. About three weeks later it spun him across the motorway into the Armco on the hard shoulder. It was a miracle no other vehicle was involved. I know 3 series BMWs were always twitchy at the back end but the ESC doesn't seem to have improved matters :-(
ESP - when should it be turned off? - Manatee
>>we were on the motorway and hit standing water... the ESC kicked in and put the back end of the car out as if we'd been hit.

Just off to re-read the handbook ;-)
ESP - when should it be turned off? - gordonbennet
One was a BMW M3 and the other a Jag XK8.


And both of those use very wide tyres which are much easier to aquaplane, which may well confuse the traction control system whatever it may be called.
One wheel leaves the ground and slows slightly, what does the computer analyse that as i wonder.

That scenario could well be worth investigating by the likes of MIRA.
ESP - when should it be turned off? - captain chaos
Quite agree GB... I used to own a Jag XJ12 which was susceptible to aquaplaning. The thing with the BMW was it seemed to cut the power to the wheel with the least traction then re-applied the power with a ferocity that made the rear end twitch. Downright dangerous IMHO
ESP - when should it be turned off? - gordonbennet
The thing with the BMW was it seemed to cut the power to the wheel
with the least traction then re-applied the power


And whats a bit scary about this is that in theory the front wheel should have gone up on the water to aquaplane sluicing most of the water away and the rear wheel should have been capable of clearing the water left.
2 things strike me here, the M3 i believe uses wider tyres at the rear, so more chance of the rear tyre having its own supply of uncleared water, and they are very light and skittish at the back anyway, which with the ample power involved make repowering a very violent affair.

I have quite wide tyres (225) on my old MB, but no electronic devices at all (thank goodness), and i never let my tyres get below say 3 mm of tread, i don't believe such wide tyres can possibly clear a large volume of water unless they have a decent tread depth.

Were you friends tyres getting a little worn, did this add to the problem?

I'm surprised a XJ12 should be a candidate for aquaplaning, its been my experience that heavy cars like that normally cut through all but the very worst of standing water.
ESP - when should it be turned off? - captain chaos
Were you friends tyres getting a little worn did this add to the problem?
I'm surprised a XJ12 should be a candidate for aquaplaning its been my experience that
heavy cars like that normally cut through all but the very worst of standing water.

The tyres were ok gb, we went down to the bodyshop to inspect the damage after the meeting with the Armaco and checked them before the insurance assesor called ;-)
The Jag was really bad for aquaplaning unless you had 20 gallons of fuel on board. Unfortunately it wasn't on board for long... ;-)
ESP - when should it be turned off? - Manatee
>>If I am driving on snow and ice I think I would prefer to turn off a system that decides to brake individual wheels without warning me

The only way I can tell this is happening is by seeing the warning light flash. The system is so invisible to the driver that the light is needed to tell him or her that the limits are being reached.

To me it comes into the same category as a drive by wire accelerator or ABS. In each example, the driver gives a command, but instead of direct control, a computer decides how much fuel will be supplied or when to apply/release the wheelbrake. In the case of ESC, the driver has chosen a direction of travel and the computer will try to keep the car going that way.

Ultimately, if we are still allowed to drive at all, the computers will control the steering as well, and all you will need is a joystick.
ESP - when should it be turned off? - Old Navy
Might the problem be people driving too fast for the conditions, wet, standing water, rather than the electronics not being able to rescue them from an impossible situation?
ESP - when should it be turned off? - b308
As someone else said there are differring levels... mine was on a 2001 Fabia and would seem to have been just the basic anti-slip control... which it did well at the times I mentioned but blunted acceleration when I could have done with it... no doubt more modern systems are more sophisticated... will have to try one, but how do you "test drive" ESP? I suspect that the salesman won't be all that happy about you flinging it around to see what sort of reaction you get from it!
ESP - when should it be turned off? - xtrailman
xtrail manual says turn off if you require extra revs to get out of mud or deep snow, as the esp automatically reduces the revs, regaurdless of throttle position.
ESP - when should it be turned off? - mike hannon
>Ultimately, if we are still allowed to drive at all, the computers will control the steering as well, and all you will need is a joystick. <

Not in my car I won't. If people allow motoring to get to that stage I'd rather catch the bus.

ESP - when should it be turned off? - Number_Cruncher
I'd rather catch the bus.


That's probably one of the first types of vehicle to be automated - fixed routes, fixed stopping points, monitored and controlled from the depot.
ESP - when should it be turned off? - Manatee
Not in my car I won't. If people allow motoring to get to that stage
I'd rather catch the bus.


Not an Airbus I presume, Mike!

tinyurl.com/arns8k
ESP - when should it be turned off? - captain chaos
Not an Airbus I presume Mike!
tinyurl.com/arns8k

What, no cup holders?! ;-)
ESP - when should it be turned off? - the swiss tony
talking about fly-by-wire and airbuses...... preview.tinyurl.com/ar6p2e
ESP - when should it be turned off? - mikeyb
>> Not an Airbus I presume Mike!
>>
>> tinyurl.com/arns8k
>>
What no cup holders?! ;-)


Yes they do - well sort of. The line in the cockpit just above where your knees would be is the service tray - slides out to place your breakfast on.
ESP - when should it be turned off? - Ben79
... will have to try one but how do
you "test drive" ESP? I suspect that the salesman won't be all that happy about
you flinging it around to see what sort of reaction you get from it!


I pointed the car at a roundabout and imagined the gap was a fraction of the size it was. Full throttle, acceleration like a kick in the back and the little twinkle of a light on the dash. Car was a Citroen C5 diesel with sensible size tyres and a heavy lump of engine over the driven wheels!

Ok, I couldn't test it in the wet or snow as it was a sunny January morning but it gives a clue whether it reduces spin or just cuts the power.
ESP - when should it be turned off? - Bromptonaut
If you can't get round a hairpin bend without spinning a wheel you don't need
ESP or whatever it is you need driving lessons.


I've occasionally had the wheel on the inside of the corner slip due to loose surface etc on a climbing hairpin. Which driving lesson did I miss?
ESP - when should it be turned off? - uk_in_usa
If you're trying to drive up or down a sloping driveway covered in snow! To get more grip.
ESP - when should it be turned off? - ST Driver
Agree with a lot of comments on here!

I was driving home from work last Monday morning and got to a hill whick hadn't been griited, got halfway up and stopped! Rolled back down and had another go with the ESP off and got straight up with a bit of wheel slip. It was amusing to watch my neighbours trying to get out of my close with the T/C or ESP on and not getting anywhere. When I suggested they turn off the TCS and they moved they were amazed.

T/C, ESP or even ABS is handy in wet conditions but in snow it is utter rubbish IMO.
ESP - when should it be turned off? - Mapmaker
>>some drivers that have had prangs whilst braking that they have suffered some form
>>of brake failure, and these last few days have seen a sharp increase in prangs.

>>The range of cars involved have more abbreviated safety braking/stability aids than
>>you could shake a stick at.

Three possibilities.

1. Overconfidence as result of various aids.
2. ABS kicking in and the unaccustomed vibration of the pedal feeling like disaster territory i.e. brake failure.
3. ABS on soft snow.

Oh yes, there's a fourth unlikely possibility

4. Brake failure.

ESP - when should it be turned off? - gordonbennet
Oh yes there's a fourth unlikely possibility


I think your list is probably in correct order too.

I wonder if we have a generation of drivers who through being told how good their new cars are, (and to be fair they are better in all manners of safety), being able to outbrake/outperform etc anything else somehow are immune to any road conditions.
I should imagine the weather of the past couple of weeks has been a quick shock learning curve for many.
ESP - when should it be turned off? - pendulum
T/C ESP or even ABS is handy in wet conditions but in snow it is
utter rubbish IMO.


More than opinion... fact I think!

It was a battle just to get a newish Merc off of our FLAT driveway. There wasn't even that much snow. It just wouldn't move. The ESP light just kept coming on constantly. We found the button and turned ESP off, but it was still a struggle... so much so that I lent her my car to get to work that day (with no ESP or anything) because we figured if her car couldn't even get off the driveway without a struggle it would be hopeless on the roads. Didn't I hear somewhere that when you turn ESP off on a Merc, it is not really completely off?