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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 03-17-2013, 09:04 PM   #1
redfeathers
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Do u think car manufacturers will EVER design and create a vehicle that will self diagnose itself completely and indicate to the driver exactly whats wrong and the fix?
Seems to me to be the next big selling item.
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Old 03-17-2013, 09:14 PM   #2
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No? Dealers make their money on service. And cars since the 90s have told the person with the right tools (dealers) exactly what's wrong.
If you have the right reading software, obdII leaves nothing to guess. It tells you exactly what's wrong.
So no, they don't care one bit about helping the driving diagnose problems.
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Old 03-17-2013, 09:22 PM   #3
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No? Dealers make their money on service. And cars since the 90s have told the person with the right tools (dealers) exactly what's wrong.
If you have the right reading software, obdII leaves nothing to guess. It tells you exactly what's wrong.
So no, they don't care one bit about helping the driving diagnose problems.
This. the dealers would lose money, so would the manufacturers. the way i think of it is car manufacturers have the technology to keep a car going for a long long time, but i think they purposely dont use it in their cars because they want you to buy another one, to make them money
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Old 03-17-2013, 09:31 PM   #4
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This. the dealers would lose money, so would the manufacturers. the way i think of it is car manufacturers have the technology to keep a car going for a long long time, but i think they purposely dont use it in their cars because they want you to buy another one, to make them money
Making everything last as long as possible and be of the best quality takes money. You have to understand that cars are built by engineers AND accountants. It's all about money. No matter what car you're buying, there's sacrifices made because of a budget.
They don't make cars with cheaper parts because they want it to fail. They do it so you can afford to buy one.
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Old 03-17-2013, 09:33 PM   #5
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No, never. And remember mechanical issues won't make a computer alert you that it's failing. Does the ECU tell you that the control arm bushings are worn out?
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Old 03-18-2013, 01:34 AM   #6
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Not possible. Unless you can make a robot car mechanic
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Old 03-18-2013, 01:50 AM   #7
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Not possible. Unless you can make a robot car mechanic
Neither is flying. Said everyone pre airplane.
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Old 03-18-2013, 05:36 AM   #8
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Making everything last as long as possible and be of the best quality takes money. You have to understand that cars are built by engineers AND accountants. It's all about money. No matter what car you're buying, there's sacrifices made because of a budget.
They don't make cars with cheaper parts because they want it to fail. They do it so you can afford to buy one.
i think that's the root of his question. Will they make one that can self diagnose 'anything' that's wrong.

Anything is possible. More likely though, they will produce mechanical parts that are cheap to produce and failure free. Just look at some of the products and materials being used in the military and space exploration - just like aluminum foil, the technology will spread to the free market, production costs will decrease, demand will increase, supply will increase even faster as there will be lots of money to be made, and viola, we have a new technology to create bushings and control arms or struts that are 99% failure free.

Everything is possible.
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Old 03-18-2013, 02:34 PM   #9
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Idk, BMW's have always been pretty good at diagnosing themselves. Even my buddies E28 has brake pads sensors, bulb sensors, etc. Who knows what they'll have in the future

(Please pardon my auto-correct)
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Old 03-18-2013, 02:38 PM   #10
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The real question here is wtf a "quesition" is.
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Old 03-18-2013, 03:06 PM   #11
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Maybe in the future we'll have something that evaluates fluids in real time to tell us when they actually NEED to be changed. We won't just have some interval for all that. As far as mechanical items: no we will never have sensors that tell us which part is broken (at least not in our lifetime). I can't think of a feasible way to even do this. You can't just slap a sensor on a bearing and see if it is go or no-go. It would take an array of sensors for each part. Also, there will never be a point where mechanical fatigue ceases to be a problem. Two reasons:

1. Physics. That's just how materials work
2. Auto companies design cars for 10 year lifespans. If they didn't their sales would drop dramatically. For example, Ford's specs for my company's products are -40C-150C for 10 years.
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Old 03-18-2013, 03:28 PM   #12
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Manufactures do not really want their cars to self diagnose or last forever.

How would they ever sell new cars if this was the case?

Problem with self diagnosis is nobody thinks outside of the box and most software guys do not know anything about cars.

Even the scan tool manufactures have clueless software programmers.

There needs to be a level of people that can really tell the software programmers where the holes are and what is important.

Funny thing is most of the problems with today's cars area still the same as they were 40 years ago, fuel supply, ignition problems, vacuum leaks, engine mechanical issues, but everyone expect a scan tool to "Tell" you what is wrong, which they will not. They give you clues and you still have to use your head.

I cannot tell you how many times a DTC uses the work Mass Air Flow sensor or Oxygen sensor to describe a condition and the tech/mechanic blindly only sees the sensor description and jump to the conclusion the part mentioned is bad, when in many cases the sensor is reading out of range due to other issues.
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Old 03-18-2013, 03:42 PM   #13
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Anything is possible, in time. How about a car that self fixes itself after it diagnosis the problem.
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Old 03-18-2013, 03:53 PM   #14
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Originally Posted by redfeathers View Post
Do u think car manufacturers will EVER design and create a vehicle that will self diagnose itself completely and indicate to the driver exactly whats wrong and the fix?
Seems to me to be the next big selling item.
You'd best hope not. If they ever did then you fukkers couldn't begin to afford one even when it was 10 years old.
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