Hi vario,first of all i'd like to thank you.i went to anther service center ,they noticed this
problem in
ibiza and cordoba .they showed me anther two car with the same
problem.and mentioned they can do nothing about it?!anyway,it happens when the car is not moving or in slow speed low than 20km when I am not turning on any device also it happens when the fan start aoutomaticly.i guess it doses not consume high electricty.also when I push the accelrater while hand brake is up.do you think I should change the battery to a bigger one?i appreciate
It depends, when you say you changed the battery. Was it new or 2nd hand and what amp hour rating? I get the bit about driving slow and the fan starting automatically causing a drain. The fan would be a considerable load. The power steering would also cause a medium load. Using accelerator with the handbrake up, I'm not too sure about. Unless with the handbrake on, the engine is being taken to the stall point.
Have you got a multimeter? If you have then measure the voltage at the battery with the engine off. It'll be 12.2 - 12.6 volts. If it's
lower than 12 volts then the battery ist kaput. Start the engine and the voltage at the battery terminals should now be about 13.5 volts on the idle. Get someone to bring the engine revs up to about 4000 rpm max when the engine has warmed up and without anyone getting run over, a few secs should be enough. Observe the voltage level during this operation, it should rise to about 14.3-14.8 volts. It should start to reach this level shortly after leaving the idle revs say at about 1500/1750 rpm. If it takes to about 3000 rpm before an appreciatable increase in voltage level is seen. Then the battery would be a strong suspect from my experience. I hope this helps. A 1.4
ibiza would have about a 50 amp hour battery at tops I would have thought. The
problem with sticking a big battery in is that you would then be asking an alternator designed to charge a smaller battery to do more work. That is unless to cut down on manufacturing, design and sourcing parts cost that seat just decided to put the same alternator from the diesel
ibiza into your car then that would work as they use a bigger battery.