We have just got our twin air 500 so are new to them.
The start stop system stops fine and starts fine when pressing the clutch, how ever I have noticed that if it's left off for say 30 seconds - 1 minute then the engine starts back up again by itself without touching the clutch.
Is this normal? Is there a timer somewhere? Or is it due to the engine cooling down so it starts as it wouldn't work with the engine colder?
Can't imagine the engine cooling much in that little time though.
Could anyone with one of these explain please?

AFAIK The limit is 3 Mins after which it starts back up

If its starting earlier than that then there is another trip, trying to warm up the cabin in cold weather or electrical drain etc.

Best way to check is when engine is at operating temp, and fans on low or off no lights on etc see if it can achieve the full 3mins before it restarts.

Ok I'll try it tomorrow and time it properly.
Thanks for the reply

Jumpinjacks said:

Ok I'll try it tomorrow and time it properly.
Thanks for the reply

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I'd give it a week or two to allow the system to learn the parameters of your specific car and to ensure the battery is fully charged before worrying too much about it.

jrkitching said:

I'd give it a week or two to allow the system to learn the parameters of your specific car and to ensure the battery is fully charged before worrying too much about it.

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Forgot to say it's not new, it's a 2011 model.

Look at the stop start thread ( near the end) sounds like you have the common TA SS restart problem, my 2012 TA is booked in for three days for the third time next week while the dealership try to fix once and for all.

Judging by comments on here TA seem have an issue, what your car is doing is not what the system is supposed to do.

if it's starting back up (force starting) the IBS is telling the ECU the battery voltage is low and better start up the car.

The stop start on my car works fine in the summer / warmer months. It tends to re-start (even when warmed up) after 20-30 seconds max during the cold weather though.

FloJo said:

The stop start on my car works fine in the summer / warmer months. It tends to re-start (even when warmed up) after 20-30 seconds max during the cold weather though.

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Mine is exactly like this.

There are times when I want SS and there are times when I don't want SS!

Pros: cheaper on gas

Cons: more things can go wrong, battery more expensive (you can save this by saving petrol though). but if you do a lot of traffic driving is the battery ever really fully charged?

ahmett said:

but if you do a lot of traffic driving is the battery ever really fully charged?

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Yes. The IBS won't let the engine stop if the voltage is too low, and will restart if it falls whilst the engine is stopped.

Alternator will give more output if doing loads of town driving. (smart charging)

bgunn said:

Yes. The IBS won't let the engine stop if the voltage is too low, and will restart if it falls whilst the engine is stopped.

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That's pretty advanced stuff for Irritable Bowel Syndrome.

Indeed, or in this context the Intelligent Battery Sensor

T14086 said:

Alternator will give more output if doing loads of town driving. (smart charging)

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...which uses more fuel ... :bang:.

jrkitching said:

...which uses more fuel ... :bang:.

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turn off day lights