Nissan keyfob information

400ixl

I don't know, you seem to keep re-iterating that a 2017/18 Audi TT key fob uses some mysterious battery that is proprietary when it uses the same CR2032 standard battery that most cars use.

The older 6120 batteries would have been cars that are a decade older than that when they swapped to smart keys.

There was nothing special about the battery in your fathers car key fob. He either misheard or was bulled by the dealer person. The latter happens too often unfortunately. 

quartzz

no. I said that it isn't beyond the realms of comprehension that a major high-end car manufacturer could have a contract with an existing battery manufacturing facility, to.....make proprietary batteries. something about Nissan keyfobs. um. super. as you were.

Barkin

          

Goudy

You'd be surprised how little of a car a car company actually "makes".

Sure they build cars but the parts themselves will be made and assembled in chunks by other manufacturers.
Some might own or part own some of the parts supplying companies but they won't necessarily solely make parts for the parent company.
For instance Magneti Marelli is owned by Fiat (Stellantis) but the parts they make could end up on any car. In the past they had a contract with Ford at one time or another.

Ok, they design the things but body panels might be stamped out by another company and someone else makes the paint, electronics from another, sundries like wiper blades from another, all the plastic bits from other companies and so on.

The engine might be assembled in another factory, but they won't make all or in some cases any of the parts themselves.
Cranks, blocks, pistons, conrods, alternators, turbos and on and on are often produced by someone else, somewhere else.

There was a time when the likes of Ford had massive plants that produced almost everything, the likes of Dagenham had it's own foundry and if you've seen "Made in Dagenham" you'll know they made all the interiors, even for other Ford plants like Halewood.

Ok, they might go to a partner company and say we need a plastic trim making, but your car is full of off the shelf parts.
Take the normal starter battery. It needs to be a certain spec but in all probability it's one of perhaps a dozen or so batteries that are made and sold openly.
The size, power rating, terminal arrangement etc will be off the shelf and it'll appear in literally dozens of different cars from all manufacturers.
It's like this because the rest of the electrical system is bought in from somewhere, like the alternator. 

The more off the shelf parts a car has, the easier and cheaper it is to build a car.
Parts costs can be tendered out to suppliers and they can often change suppliers if needed, they'll be a least 6 or more parts supplying companies that all make the same clutch that fits your car.

If a company like Bosch make the braking system, they could often change braking system part way through manufacturing, so later cars might have ATE or Aisin braking system even through they are of a slightly different design.
Some might notice this when it comes to ordering spares for their car and there are different parts listed for the same car. They usually have a cross over date or up to and after chassis number range.
I have a collection of unused oil filters in boxes as the changes in these seems to always catch me out and they are just too cheap to both returning!

So the chances of a car manufacturer asking for an available and suitable off the self product like a fob battery to be made for them bespoke is very very slim indeed.

Chances are a supplier goes to a manufacturer as say, "here, we've got a new system to unlock and start your cars and it costs less as it doesn't include a £3 battery".
That system might become "bespoke" for a short time if the manufacturer pays for exclusive rights or they actually own/part own the supplier, but other parts suppliers will generally copy it sooner or later as the new system was made up of off the shelf parts to start with.

WellKnownSid

Goudy said:

Chances are a supplier goes to a manufacturer as say, "here, we've got a new system to unlock and start your cars and it costs less as it doesn't include a £3 battery".
That system might become "bespoke" for a short time if the manufacturer pays for exclusive rights or they actually own/part own the supplier, but other parts suppliers will generally copy it sooner or later.

Yep, the danger of investing millions developing something completely new and building up inventory only to find someone on eBay is selling a 3D printed 'Audi TT battery converter BNIB' for 99p + postage is very real.

Goudy

WellKnownSid said:

Goudy said:

Chances are a supplier goes to a manufacturer as say, "here, we've got a new system to unlock and start your cars and it costs less as it doesn't include a £3 battery".
That system might become "bespoke" for a short time if the manufacturer pays for exclusive rights or they actually own/part own the supplier, but other parts suppliers will generally copy it sooner or later.

Yep, the danger of investing millions developing something completely new and building up inventory only to find someone on eBay is selling a 3D printed 'Audi TT battery converter BNIB' for 99p + postage is very real.

Chances are you could probably find a knock off Audi TT fob on your favourite auction site.

Like I wrote, Audi more than likely didn't make the fob to start with and whoever did used openly available parts to make it, including the battery. Then stuck all the parts into a "Audi" case, again not actually made by Audi but some plastic company out in the third world somewhere.

The only things Audi about it is Audi actually sold it to you when you bought the collection of other parts branded "Audi".