eco button

[renagade]

Hi I have the e-hdi 1.6 2011 c5 and was wondering if it would be poss. to switch off the stop start system permanently . Not used to it and don't like it .

[GiveMeABreak]

I can't say whether there is a permanent solution via Lexia for a permanent deactivation of the Stop and Start system and what the overall effect that would have on the car. The only way to stop the system normally is by switching the ECO button on (middle button of three on left hand side switch bank of of RHD car). That will disable it until the car is next started, but you'll have to do this each time.

I've used this system on a few cars (Picasso C4, Cactus), and got used to it. It is so quiet, I rarely even noticed it, so can't say it bothered me any.

[Paul-R]

I'm with Marc on this. My wife's new car has start/stop and we've both had no problems getting used to it. In fact there's been no "getting used to it" period for us at all.

The only complaint I have is that it doesn't seem to come on as often or for as long as I would like it to.

[vborovic]

I can't say whether there is a permanent solution via Lexia for a permanent deactivation of the Stop and Start system and what the overall effect that would have on the car.

Not possible, the car is designed to work start & stop style even when the system itself isn't active (different car batteries and the alternator for charging)

[GiveMeABreak]

It uses an AGM battery - I have one on my car which isn't Stop & Start - fantastic battery.

[momag46]

On the C4 Picasso the system can be deactivated within the "Driving Assistance" menu.

I found the system to work excellently and as said above, most the time I don't even notice it working.

I do a lot of short runs so some of the time the system does not work but after a long run it's back in place.

I was very surprised how long the system stops the engine when going across town.

As an old friend of mine (Percy Veer) used to say "Stick with it".

Maurice

[Paul-R]

I was very surprised how long the system stops the engine when going across town.

My experience with the Peugeot 308 is the exact opposite. I was surprised, nay disappointed, by how soon it restarted the engine when stopped at some of the lights near here with a long changeover time. I haven't timed it exactly but it seemed to restart the engine after only about 30s of switch-off.

[momag46]

I haven't timed it exactly but it seemed to restart the engine after only about 30s of switch-off.

It all depends on the battery charge - if you do loads of short runs the system is deactivated to protect the battery.

I've sat for over 15 minutes at a railway crossing with the engine stopped when the battery is fully charged.

Maurice

[renagade]

Hi ,my stop start is activated as soon as I press the brake (1.6 e-hdi egs6 ) if for any reason I take my foot off the brake the engine starts .

[Paul-R]

Are you sure about that? According to the manual for the 308 the primary restart reason is pressing the clutch pedal down. Could you be doing this at the same time as releasing the brake? This a natural thing to do.

Ah, just noticed you have the EGS box so presumably there's no clutch pedal. Then this would make sense as you would let go of brake in order to press the accelerator.

[momag46]

The system changed from the C4 EGS6 (latest version) to the new C4 Picasso ETG6
With the C4 EGS box I think the engine only stopped when the box in N and the "parking" brake applied.
With the C4P ETG box the engine stops even before the car has come to a stop if you are slowing down gradually; it doesn't matter if it's in drive or not. It is much more "clever" and is never wrong footed. It also starts as your foot comes off the brake (if it's in drive) or if you move from P the drive. It also starts if the drivers seat belt is undone or a door is open.

Maurice

[renagade]

Hi, I agree it is very clever stuff. My engine will cut just before I come to a rolling stop and as long as I have my foot brake on it will not restart ( of course it will start if it detects a low battery ) I suppose it is some thing else to get used to.

[Paul-R]

That's behaving exactly as it's supposed to I think.

Quoting from the 308 handbook the start/stop engages "With a manual gearbox, a speeds below 12mph (20km/h)..." On the 308 with auto it's slightly different, only engaging when the "vehicle is stationary, when you press the brake pedal or place the gear selector lever in position N" , but the slight differences could easily be because we are talking of different vehicles.

[renagade]

Hi Guy's back again
What effect do you think all this stop start has on the turbocharger, ie running on with no oil pressure as soon as the engine stops??????
I don't think citroen would be realy bothered about this as it means more sales of turbochargers. Just a thought.

[Paul-R]

Shouldn't be a problem at as this will be taking place in slow traffic where the engine rarely gets above a fast tickover even when moving. It's not as though you've just screamed down the autobahn at top speed and then hit a line of stationary traffic!

And even in that remote possibility I'm sure that there's something coded into the parameters to cater for it.