cold start problem with fully charged battery

[Helmuth]

I would have somebody to check the error memory of the car and also to check online rail pressure values. The tech from Bosch service told me after some minutes what's wrong. The bill for having that checked is low. Then you can decide.

About the difficulty of the job: they had to remove the injectors and put them on a test stand. There they found out that 4 of the 6 were not in the proper value any more. Then they ordered repair sets and fixed all of them. Working time was about 8 hours. The rest was material.

LG Helmuth

[omodos]

thanks Helmuth...regarding cranking volts I got following off an e38 site, does it apply to the x5 too? anything lower than 9v whilst cranking means batt is rubbish?


TEST-NR. 09
VB: xx.x V (battery voltage)

Useful for battery condition tests. Engine not running value should be above 12V....cranking voltage should not drop below 9V. When fully charged the voltage should show > 14V

[powers1]

Originally Posted by omodos

thanks Helmuth...regarding cranking volts I got following off an e38 site, does it apply to the x5 too? anything lower than 9v whilst cranking means batt is rubbish?


TEST-NR. 09
VB: xx.x V (battery voltage)

Useful for battery condition tests. Engine not running value should be above 12V....cranking voltage should not drop below 9V. When fully charged the voltage should show > 14V

Its approx. 9.6v but you will need a voltmeter with MIN/MAX function to register the cranking voltage.Its the cranking that takes the most load on a battery.On cranking ,even a new battery will register below 10v but it will recover immediately to 12 v+ ,as you will see ,when your turn the engine off again.
I am glad my X5 doesnt have START/STOP function as this takes a toll on any battery and our customers that do short trips regularly complain of battery problems .I have it on my Alfa ,but its always switched off