I would be very grateful for any input you may give.
I was driving my car yesterday first thing after a cold start (car was sitting in one place for 16 hours), started fine without any problems (except for the VVT fault I've been having for the past 3 months).
I drove at moderate speed because of local traffic for about 15 minutes covering 4 miles approx, car heated up to normal temp by then.
Again no problem while driving until all of a sudden a few warning lights lit up on the instrument cluster: ABS, BRAKE WARNING LIGHT, ASC/DSC, AIRBAG.
Then about 10 seconds later, headlights started to go dim, had no response whatsover when pressing gas pedal, all the electrical system of the car started flickering & going haywire, it all happened so quick until I came to a halt, inside a busy tunnel.
The car shutdown itself, I switched my hazard on but didn't seem to be working properly as it seemed it had low power.
I tried started the car but it would'nt, just a clicking noise when turning.
As my other half got onto the phone trying to ring the AA, in a state of panic I quickly got my OBD2 scanner out to scan for codes, but no codes came up.
Within about 5 min police arrived to tow my car to a safe location away from the fast moving traffic. Kudos to them.
Some 40 min later, AA arrived checked the battery & found it was about 11 - 11.5 V, so he put the booster on & it started right up. I obviously kind of killed the battery by cranking it tryna start it up when I broke down. He found the battery charging up correctly & alternator good aswell even at full load. After monitoring the vehicle he left without being able to pinpoint why it has happened if its a good battery (only 2 months old) & a good alternator.
I then went on to drive the car for another 20 miles or so over 2 hours (stopping for meals, shops etc). It would start again & again without any problems.
It seemed as if nothing just happened.
Until, the same happened today, exactly the same conditions as yesterday, car rested for 16 hours- cold started fine- drove 5 miles at moderate speed at 15 minutes driving, then all of a sudden the same warning lights just flashed for a split second. After about a 1/4 mile driving the lights reappeared & flickering at the same time, lights, heating, radio etc... started going dim. But this time I still had engine power, so I pulled over, I kept the engine running & waited about a minute & decided to continue my journey as I had a mile to go.
After I reached my destination, I continued to let the engine run for another minute, still had same low electrical power issue then I switched the engine off.
Tried to restart, but it wouldn't, just clicking.
So I took the keys out, waited about 5-10 minutes then retried to start, it started without any problem, I was able to drive throughout the whole evening again without any problems, as if nothing had happened.
Not even once did the battery sign appear.
I hooked up INPA/DIS earlier on after these problem disappeared, no codes came up. (except for the VVT servomotor code I've been getting for a few months now).
I am totally confused.
SORRY FOR THE SUPER LONG POST, I GOT CARRIED AWAY, WILL TRY TO KEEP IT SHORT NEXT TIME- I HOPE.