Hi everyone I have a few issues which I don't know if they are linked but to help find the fault I will list everything.
i have a 1.8T 2002 AVJ engine code and when we started to get the bad weather my battery went flat and kept going flat. So I bought a Boshh silver battery and it still kept going flat. To make matters worse i have an engine management fault which I don't know what it is all I know is when I start my car first thing in the morning the radiator fans come on for a few minutes and then go off.
i know this wont help as the car only gets driven a few miles in the morning and doesn't have much chance to charge especially with the fans on and then the same in the evening but several hours after the morning so the same issue persists.
i have tried jumping the car and letting it tick over for about an hr and as long as the car is started daily and left to tick over for about 30 mins every day then it is ok. However if you leave it for just 1 day the battery is completely flat.
i have put a very crude battery tester on And it says the battery is charging ok.
i have done some research and have read about the convinience module on the passenger footwell getting wet due to blocked drain holes and that caused the battery drain.
other issues which may be in related are that the temp gauge isn't working correctly even though I have changed the sensor on the back of the engine 2 times.
Any advise would be most welcome as I need to sort this problem by tomorrow evening.