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Please don’t fix your car!Stephen Townsend
Course ProjectCAP480
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Example’s using BMW
Cars are no longer simple machines.
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Intended Clients
• Younger men to adults• Low income clients who
may not be able to afford repairs.
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Why?
• 2015 technology has changed• Vehicles are becoming
more complex• Vehicles are considered
super computers• A simple repair could cost
you hundreds more. $$$$
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Break Down of SystemsO BodyO EngineO SuspensionO TransmissionO Climate ControlO Convenience systemsO Night VisionO Wheel TireO ChargingO Survival modeO Safety SystemO StereoO Some cars have up to 30 plus computers each…
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Basic Wiring diagram from early 1990’s
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Basic Wiring Today.
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O Vehicles are now vin specific to prevent theft and home repairs
O Many repairs require programming or major damages can occur
O Each part of the vehicles are monitored all the way to the climate control
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BMW VehiclesO Still require same electronics and
many of the same safety features.O Accessories and add on is where
more computers get addedO cars now are considered super
computers
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HybridsO If tampered with, they hold enough
power to kill a human instantly.O If the system does not register
perfectly, it may not run properly and cause major damage or leave the client stranded.
O Battery charging CAN NOT exceed 14 volts-Average charge is 14.9 volts. If 14volts is exceeded the battery is damaged.
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Common Home RepairsO Batteries- Installing wrong batteries or
not registering correct battery can cause major electrical issues.
O Tune-ups- As basic repairs are made many little things must be replaced in conjunction with other parts. They are one time use parts. These are not listed on repair instructions.
O Oil leaks- Repairing an oil leak incorrectly can cause major engine failure.
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Electrical MonitoringO Electrical module monitors vehicles voltage. O Alternators are not always charging the
battery like they used too.O Batteries are monitored and require high
grade AGM batteriesO If the vehicle senses weak voltage it will
shut down systems to preserve the battery.O All computers must register a certain
voltage to work property. If voltage drops below 10volts. Computers may not work correctly.
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References
O http://www.autoblog.com/2015/04/20/automakers
-gearheads-car-repairs/
O http://mrconservative.com/2015/04/57886-new-r
ules-could-ban-you-from-fixing-your-own-car/
O My school books provided by the manufacture
which I can only share certain information due to
law.
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DisclaimerO For these example BMW was used.
This is not to just make BMW a better car or worse car. All modern cars these days hold the same if not similar type of technology. Germans or American cars all require now complex computers.