Setting Idle on a 560SEL

How do i set the idle on my 560sel i took it to the dealer awhile back and they set the idle up to high and i dont plan on paying someone to set the idle on my car. I normally do my own work so if it is harder to do plz still explain.

Thanks

from the small hole in the middle of the air cleaner, insert a long 4mm allen key.

if air cleaner is removed, just behind the sensor plate of throtte body (front of fuel distributor).

clockwise, higher rpm.

Thanks alot man

thats your mixture adjustment ..... that car had auto idle system all electroic..how hi is it >>??1500/2000/or 2500..??