Does BMW design certain parts to fail on purpose?
#11
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Yeah, metal is cheaper on low volumes (because doesn't require huge capital expenditure )but when you making millions of the same part(s) plastic is many times cheaper.
I remember talking to my boss about Nissan cars (he used to work there) and was telling me they reduced the paint thickness for 1-2 microns to save ?3 per vehicle. I know sounds crazy but multiply that by their production figures and can understand why
Generally speaking i think manufacturers understood the huge cock up they made on the 70-80s by making life lasting products
Everything on your list i would consider lucky to be my only failures. The only thing to worry about would be no 6. Fortunately i have a manual so i don't care
I remember talking to my boss about Nissan cars (he used to work there) and was telling me they reduced the paint thickness for 1-2 microns to save ?3 per vehicle. I know sounds crazy but multiply that by their production figures and can understand why
Generally speaking i think manufacturers understood the huge cock up they made on the 70-80s by making life lasting products
Everything on your list i would consider lucky to be my only failures. The only thing to worry about would be no 6. Fortunately i have a manual so i don't care
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Originally Posted by porsche911targa' post='1021191' date='Sep 30 2009, 10:46 AM
Hit the customers with newer and *better* cars than what they already have and they will gladly give up their perfectly good car for the newer one. I see this on this very forum. Many of our members have moved from pre-LCI models to LCI models just to get the "improvements" even though their pre-LCI cars were still in great shape.
I love BMWs and will love them till the day I die but there are things such as these that I can't ignore.
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Just to add to all this, why does BMW or German manufacturers in general use parts that fail a lot faster than their Japanese counterparts. I don't want to buy a Japanese car or plan to but you have to commend them for their reliability.
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
#14
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Originally Posted by acorradi87' post='1021154' date='Sep 30 2009, 10:20 AM
Funny you say that. My grandmother's Kirby vacuum is from 1962 and works better than the one I bought 2 weeks ago.
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In a nutshell, your topic is in regards to planned obsolescence. It's amazing what I still remember from high school, the first in my family to go to a public one at that. lol..
http://en.wikipedia.org/wiki/Planned_obsolescence
http://en.wikipedia.org/wiki/Planned_obsolescence
#16
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Originally Posted by 968turboS' post='1021233' date='Sep 30 2009, 11:18 AM
Just to add to all this, why does BMW or German manufacturers in general use parts that fail a lot faster than their Japanese counterparts. I don't want to buy a Japanese car or plan to but you have to commend them for their reliability.
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
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Added to the list would have to be large plastic body panels (my X5 has huge plastic panels up front that even form the fenders) it all makes for less expensive production and reduced weight, but at what cost?
#18
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Originally Posted by flyingpuck' post='1021254' date='Sep 30 2009, 11:30 AM
Added to the list would have to be large plastic body panels (my X5 has huge plastic panels up front that even form the fenders) it all makes for less expensive production and reduced weight, but at what cost?
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Originally Posted by thedreamshop' post='1021122' date='Sep 30 2009, 12:00 PM
Is it just me, or are there certain parts on all BMWs that are designed to fail? Here is my theory... the factory only makes money on parts. There was probably a board meeting at BMW a long time ago where some young executive came up with this idea in order to get a promotion: He decided that the car manufacturers trying to make their money on the sale of the car were short sighted chumps, and that the real money is in part sales down the road. So the scheme is to make an exciting, appealing, high performance car and sell it cheap ( relatively speaking ) with full intentions on making all the profit on the parts sales. In fact I am sure some market research has been done to decide what parts to design to fail based on criteria that maintains the brand name and brand appeal. For example, if your driver's door fell off at 61K miles, just outside of warranty you would just sell the piece of junk and buy an Audi or Lexus. But if your water pump, window regulator, and alternator all failed at the same time you would likely say to yourself well I guess its about time to do some maintenance and go ahead and have the repairs done.
In order to prove me wrong I need a good explanation of why our window regulators have plastic guides ( which fail every 40-70K miles ) instead of metal guides which would last the life of the car. Or how about our water pumps, please explain why plastic impeller blades were used ( I know some have been re-designed with metal blades ) and don't tell me the plastic saves weight or lowers the cost of the part.
Lets make a list
What items would you add to this list? What is the expected failure rate or milage of these parts. Pictures of the failed part would be cool to see also?
In order to prove me wrong I need a good explanation of why our window regulators have plastic guides ( which fail every 40-70K miles ) instead of metal guides which would last the life of the car. Or how about our water pumps, please explain why plastic impeller blades were used ( I know some have been re-designed with metal blades ) and don't tell me the plastic saves weight or lowers the cost of the part.
Lets make a list
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What items would you add to this list? What is the expected failure rate or milage of these parts. Pictures of the failed part would be cool to see also?
1. Ever notice that all manufacts make headlights that fade over x number of years. Replacements are several hundred $$.
2. One manufact provided alternators with the diode soldered to the bearing. They did cure the problem--after about 18 years. True.
3. All manufacts have having problems with window regulators. Retail repair cost is about $600. Many of the regulators fail because the plastic parts crack.
4. Radiators and expansion tanks are plastic on all cars. Excessive heat causes failure.
5. Water pumps could be improved by having them made with heavier bearings. e.g., police car water pumps do not fail as often because of their heavy duty bearings.
6. Many moons ago one manufact filled a/c compressors with 15 oz of oil. A later version (totally revised) came with 3 oz of oil. Ask me if the new ones failed at a higher rate!!
7. And on and on.
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Originally Posted by 968turboS' post='1021233' date='Sep 30 2009, 02:18 PM
Just to add to all this, why does BMW or German manufacturers in general use parts that fail a lot faster than their Japanese counterparts. I don't want to buy a Japanese car or plan to but you have to commend them for their reliability.
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
Parts like window regulators, alternators, waterpumps are all non issue items on Japanese cars. It's a shame that they can't do a better job on these constantly failing parts.
Raj
or this: http://us.lexusownersclub.com/forums/index...showtopic=33974
or this: http://us.lexusownersclub.com/forums/index...&pid=360722
or this: http://us.lexusownersclub.com/forums/index...showtopic=10189
Does any of this sound familiar?