jan_tekin said:
If it was showing half full you should of left it till it says add +1 litre.
If you added 2.5l its defiantly been overfilled. I would drain and add the correct amount.
I dont think it has been overfilled now;
From reading the manual, the add 1 litre sign comes on when its at minimum and can arise from 2 situations:
1. The lamp comes on
Engine oil level
The warning lamp lights up in yellow while you are driving. In addition, a sig- nal sounds and "+1.0" appears in the
instrument cluster, refer to page 93.
The oil level is at the absolute minimum; refill as soon as possible. Do not drive more than
125 miles/200 km before refilling.
or
2. The check reveals
Oil level down to minimum:
Add 1 US quart/1 liter of engine oil as soon as possible, refer also to Adding engine oil.
Theres no other instance when it would ask you to add just 1 litre.