About three weeks ago my 2000 beetle wouldn't start. Took it to the shop and they found a bad battery cable. They replaced the cable then they said the oil light started flashing and found that the antifreeze is mixing with the oil which typically means bad gaskets. I've decided to sell the car rather than fix it so I picked the car up yesterday. Got half way down the street and the gauges don't work. Speedometer, gas, and rpm all don't work. The radio (an aftermarket radio that was iffy anyway) doesn't work. The digital miles does work. I read on another forum that it could be in "safe mode". That since there is something wrong with the engine the car will stop using as much power to prevent further damage. Is this a real thing? Just want an idea so I can sell the car. Thanks in advance everyone.