how can i tension the alternator belt on toyota avensis 06 estate d4d 2.0l

[sauter]

My car battery died couple of days ago, i manage to charge it and i was trying to test the charging system..

car: toyota avensis 06 estate d4d 2.0l 

once started i put the car on a load (high beam high, a/c on, whipers on, and revved to 2000 rpm.. at that point my voltmeter readed only 10.9v.

At this point the main *and more expensive problem seems to be the alternator.. 

the alternator belt squeaks a bit, so i wanted to tension it a bit, but i can't find anywere how to do it..

any help? (with pics if possible)

 

[Duggerz]

Hi sauter,

06 is on the change for the 2.0 diesel engine, do you know which one yours has?

Ian

[sauter]

It has indicators on the mirrors, so it should be the MK2.. does the pulley tensioner need tweaking usually?

At the moment it appears that to tension it I would need to jack up the car, remove the bottom cover and tweak with the pulley tensioner from below (due to lack of space from above).. the problem is that I cannot find anywhere which bolt I should turn, or in which direction.. 

[Duggerz]

Facelift model had 1AD engine and it's auto tensioning on a sprung idler pulley. If that's not doing its job I think replacement is the only option.

Ian