hi all , I have jaguar xk8 2005 clean car it's about 84,000 km, I bought the car tow weeks ago , every things work fine , today at 3 pm when I try to turn on its not starting at lest after 3 time then start fine, same day at 10 pm try again same thing happened after 5 time start ok , like weak battery , when driving the car between 20 to 30 mins on the way radio turn off then turn on it self & when I turn on the high lights the radio turn off then on / washer work it self the appear warring massage " gearbox fault " when I try to park a car the transmission look like hard & not smooth ., I turn the car off .. after 5 mins start the car & massages disappeared , car work fine . is that battery need to change? I thing the last owner changed the battery before 2 months ago , is that fues need to change ? any help for that ? by the way I have something to tell you ,, there is some sound on throttle like buzz ,, is that normal ?
thanks a lot for all .. happy new year ^_^