by duncan61 » 10 Jul 2017, 10:39 pm
There are computers in modern cars that control the major and minor functions – jumpstarting your car can damage them
There’s a bigger risk of doing damage when you jumpstart a modern car compared with a pre-2000 model
There are a lot more complex electronic systems in today’s cars than those of a decade, or even five years ago, which is why jumpstarting your car is never a good idea.
Great gains in luxury and convenience have come with the extra electronics, which have given rise to features such as satellite navigation and Bluetooth connectivity, and life-saving safety equipment such as airbags and electronic stability control.
“The big change from then to now is computers and it’s not as if a modern car has just one – a Mercedes-Benz S-Class from a few years ago has 64 ECUs (Electronic Control Units),” he said. “Hooking up jumper leads can zap these computers.
“Jaguar warned us that you could damage the whole wiring harness if you try to jumpstart one of their cars, and that warning is probably applicable to most vehicles built in the past five years.
“A five-year-old Audi was recently taken to an NRMA approved repairer with an electrical system so badly damaged by an attempted jumpstart that, in the end, it was actually cheaper to write the car off rather than repairing the damage.”
“Well-meaning car owners can do massive damage very easily,” Darrin says.
I have copied and pasted this it could me a myth but when I did an autogas installation and servicing course at TAFE we were warned about spiking computers with voltage surges when working on certain cars.
.22 winchester .22hornet .222 .243 7mm rem mag cbc 12g