Ive accidentally added more engine oil! In the dipstick its 2cm more than the max level, what problems might i be facing?

 

At that level, no problems. It's okay.

 

at what level are there problems to be dealt with?

 

No one knows for sure, but something over half a quart over would be a bad idea. Two centimeters is not that much. Dealers regularly overfill by 1/3 to 1/2 quart with no ill effects.

You can pump it out with a little hand pump and a tube stuck down into the dipstick channel. That's what I did. Cheap fix.