Battery dying

[Hillbilly]

Attachment 44841


Lets go with some scientific research and not anecdotal one liners like 'sfa at idle'

Fuel Consumption Improvement of Vehicles by Idling Stop

Costly myths: An analysis of idling beliefs and behavior in personal motor vehicles

"4% - 8.7% fuel saving in real world tests"


Q: Does the Tiguan have a separate stop/start battery ?
Q: What is the cost for a new Tiguan battery ?

• If you spend $1500 per year on fuel
• And assuming you get a 4% stop/start fuel saving
• That's an annual saving: $60
  
• If your car battery prematurely dies at year 2, is the cost of replacing the battery less than $120 ?

Firstly your first link is from 2004 and I think things are a bit different nowadays

The other one is from 2009 and same probably applies

So up to date info would be better

No the Tig and other s/s all only have one battery but it and the starting system are designed for what they do

I have no idea of the cost but a Passat stop start battery on same size motor is quite a bit over $400

I would worry more about reshoeing it Scorpions on mine are $455 each and probably wont last as long as a battery


Our Polo battery was marked as needing replaced two years ago but is still starting car with no trouble.

[Dose Pipe Sutututu]

Don't use Stop Start and your battery will last much longer.

Also battery waste and manufacturing probably contributes more harm than a combustion engine idling.

Once again consumers are spoon fed BS by marketers and sold shet we don't need or want.

[drivesafe]

Anyone had to have their battery replaced?

It was flagged at our second annual service as needing replaced, but the cost seemed high so I declined.

Our cars keyless entry is only working intermittently now....

What is a reasonable life for a car battery these days?

Hi and if the dealership is trying to “SELL” you a new cranking battery, I would get in touch with your state’s consumer protection authority or drop a line to the ACCC.


Under the new consumer protection laws ( introduced in 2011 ) you have a legal expectation that things, like your cranking battery, will last at least for the period of the warranty.


If your battery is failing and they can not show that you have done something to cause the failure, it’s their problem, not yours.

[FastMitch]

No the Tig and other s/s all only have one battery but it and the starting system are designed for what they do

I have no idea of the cost but a Passat stop start battery on same size motor is quite a bit over $400

Wow ... $400 for a car battery sounds expensive

I replaced my previous SUV battery and it was ~ $150

At $400 to replace a Tiguan battery, S/S savings per annum do not seem enough to cover a battery that dies earlier

[Hillbilly]

Wow ... $400 for a car battery sounds expensive

I replaced my previous SUV battery and it was ~ $150

At $400 to replace a Tiguan battery, S/S savings per annum do not seem enough to cover a battery that dies earlier

Maybe it is expensive but thats what they are nad that was 3 years ago but wait till you have to replace the tyres if you have 20's on it

Just dont brake so hard and engine wont stop or simply turn it off with coding

[FastMitch]

Maybe it is expensive but thats what they are nad that was 3 years ago but wait till you have to replace the tyres if you have 20's on it

Just dont brake so hard and engine wont stop or simply turn it off with coding

Don't remind me about the 20's ... my journey is just beginning

I may need to start deactivating S/S if the battery replacement costs out-way the fuel savings

[Hillbilly]

Don't remind me about the 20's ... my journey is just beginning

I may need to start deactivating S/S if the battery replacement costs out-way the fuel savings

You worry to much if you buy a $60 k vehicle and are worrying about how long a $400 battery will last

[Simonr23]

I’ve deactivated my stop/start via obd11, so can’t confirm this. Do vw cars say how long you’ve spent with the motor off each trip/forever? Mazda does.
When I used it on my work run in the mazda, I’d spend about 4mins out of the 60min round trip with the engine off. My car (and most 4cyls) used about .7-1.0 litres per hour(aircon dependant), when idling. That worked out to about $24 of fuel saved a year.

There likely is a small bit of wasted fuel between the engine kicking over and reaching idle rpm, but I don’t know the numbers, so I’ll ignore it.

A standard battery for a modern 2 litre 4cyl diesel is circa $200.

The battery for the Mazda 6 is $650($400 for a cheapie via RAA)

So I’d need to make sure the battery lasted about 4-6yrs to break even.

Again, I’m ignoring extra wear and tear on the engine(Mazda day to not use engine hard after each restart- so a bit of oil drains away each time) engine mounts (the Mazda shock violently each start up- with good mounts) and starter motor...

Also, you are always delayed when taking off, due to engine start, wait for gears to engage fully, plus take off slow(due to earlier instructions to be gentle when taking off after a shutdown)

10000000% not worth the hassle.

[Hillbilly]

I’ve deactivated my stop/start via obd11, so can’t confirm this. Do vw cars say how long you’ve spent with the motor off each trip/forever? Mazda does.
When I used it on my work run in the mazda, I’d spend about 4mins out of the 60min round trip with the engine off. My car (and most 4cyls) used about .7-1.0 litres per hour(aircon dependant), when idling. That worked out to about $24 of fuel saved a year.

There likely is a small bit of wasted fuel between the engine kicking over and reaching idle rpm, but I don’t know the numbers, so I’ll ignore it.

A standard battery for a modern 2 litre 4cyl diesel is circa $200.

The battery for the Mazda 6 is $650($400 for a cheapie via RAA)

So I’d need to make sure the battery lasted about 4-6yrs to break even.

Again, I’m ignoring extra wear and tear on the engine(Mazda day to not use engine hard after each restart- so a bit of oil drains away each time) engine mounts (the Mazda shock violently each start up- with good mounts) and starter motor...

Also, you are always delayed when taking off, due to engine start, wait for gears to engage fully, plus take off slow(due to earlier instructions to be gentle when taking off after a shutdown)

10000000% not worth the hassle.

Lot of lack of understanding here Mazda use the position where the engine stops to fire it up again I believe unlike VW which use the starter You wont get a Tig battery for $200 petrol or diesel.If you are familiar with where you are driving you can anticipate the lights and fire the engine up in plenty of time.
If not you can still do it as I did in the Passat by lifting my foot off the brake just far enough to fire up the engine but not far enough to let the car move or engage the clutches
Its all about emissions rather than economy anyway. The cars are fairly economical and the tiny % saved by stop start is hardly worth worrying about in the scheme of things.

If you have to watch costs so much you need to get 12 years out of a battery you should have bought a pushbike

[Transporter]

The stop start won’t save you enough money to cover the difference between std battery and agm battery even if it last you 4years and you won’t save the planet either.

If you have the AGM battery fitted not the EFB and you look after it, it can last you 10years if looked after a bit. That’s worth more and you will save the resources as well.