AutoStop/Start Not Working

[cre8toruk]

Hi, noticed over the last couple of days (well since I drove it from the garage tbh), that there's an AutoStop/Start indicator with a line through it. Is that a setting that needs to be turned on, is it normal or should i get it looked at?


tbh not really fussed about stop/start unless it saves me a shed load of fuel!

 

[Smartbear]

Hi, noticed over the last couple of days (well since I drove it from the garage tbh), that there's an AutoStop/Start indicator with a line through it. Is that a setting that needs to be turned on, is it normal or should i get it looked at?


tbh not really fussed about stop/start unless it saves me a shed load of fuel!

Hi, stop/start will only work when the cars fully up to temp & carrying a fully charged battery-if these criteria aren’t met it’s not operational
Rob

 

[Anonymous]

On some cars (Volvo XC70) it also needs outside air temp to be above a certain figure even with a fully charged battery and oil up to temp..

 

[Mr Tidy]

Be grateful it's off!

My only experience of it on a 1 Series included a new battery after just over 4 years and a new starter motor after just over 6 years. After that I turned it off every time I used the car!

It's a hateful invention. :evil:

 

[ronk]

Don't worry - The system hasn't worked on our 335xd for weeks either - there are conditions that have to be met before it works - Temperature/Battery level for starters (no pun intended)

Personally I don't like it and I don't think it saves any significant amount of fuel.

 

[Smartbear]

It’s possible to code this function with Carly so it remembers its last selected state instead of defaulting to “on” every time the car’s started
Rob

 

[Busterboo]

Be grateful it's off!
It's a hateful invention. :evil:

 

[ronk]

I didn’t realise they fitted it to the E89 - My 2016 35is doesn’t and nor did my previous 2010 3.0l have it fitted.

 

[warmasice]

Be glad it doesn't work!

 

[enzed4]

Does it show up as an option in a VIN search?
OP, I had stop/start in a work toyotal corolla and it stopped working a while before the battery did. But as others have pointed out, the Z4 stop/start seems dependent on other factors such as temperature (and you're in the middle of winter at the moment) so it may be related to that instead.

 

[Smartbear]

I didn’t realise they fitted it to the E89 - My 2016 35is doesn’t and nor did my previous 2010 3.0l have it fitted.

The 6 cylinder cars never had it Ron
Rob

 

[ronk]

I didn’t realise they fitted it to the E89 - My 2016 35is doesn’t and nor did my previous 2010 3.0l have it fitted.

The 6 cylinder cars never had it Ron
Rob

As I suspected!
If it was such an environmental and fuel saving boon as they suggest, then surely the bigger engines / less economical cars would have benefited more?

 

[Smartbear]

I didn’t realise they fitted it to the E89 - My 2016 35is doesn’t and nor did my previous 2010 3.0l have it fitted.

The 6 cylinder cars never had it Ron
Rob

As I suspected!
If it was such an environmental and fuel saving boon as they suggest, then surely the bigger engines / less economical cars would have benefited more?

I suspect it might be tied in with the fact the bigger engine takes a lot more out of the battery to spin it over to start so stop/start is probably not sustainable for that reason :?
Rob

 

[ronk]

The 6 cylinder cars never had it Ron
Rob

As I suspected!
If it was such an environmental and fuel saving boon as they suggest, then surely the bigger engines / less economical cars would have benefited more?

I suspect it might be tied in with the fact the bigger engine takes a lot more out of the battery to spin it over to start so stop/start is probably not sustainable for that reason :?
Rob

I don’t think that’s the reason as our 335xd has a six cyl Diesel engine - I would think that would take a lot more energy to spin than the petrol alternative?
(Higher rotating mass and compression ratio)

Never mind it’s not a system I miss

 

[Anonymous]

Stop / Start allows the manufacturer to squeeze through the various mpg drive cycles especially the urban mode.

I guess if you are in stop start traffic crawling though a city etc it would help...

If you just stop at intersections in the countryside it’s a waste of time..IMHO..

 

[Mr Tidy]

When they are new it has an impact - my 2004 320td was in Band G whereas my 2007 123d with stop/start sneaked into Band E.

But more significantly it reduced the BIK which when the cars were new was probably far more relevant.

In the real world my 123d was barely more economical than the 320td during the time I owned them.

And outside of the warranty I'd have happily paid another £55 a year road tax for 6+ years than £850 for a coded AGM battery and a starter motor.

Still both my cars are Band K now, so I'm trying to address climate change - given the ice on my Z4 when I got home tonight global warming can't come soon enough! :lol: