vacuum hoses

[gasmati888]

I have a problem with a sudden onset of rough idle on my 99 S420 and computer anlysis shows misfire. The most common maybe a vacuum leak. Where do I locate the vacuum hoses in this model. thanks

[Malachias]

DEAR GASMATI888:

TAKE OUT YOUR AIR FILTER AND LOOK FOR THE HOSES ABOVE THE ENGINE.
(BETTER WITH THE COLD ENGINE).
TURN THE ENGINE ON AND CHECK WITH BOTH HANDS THE HOSES CONECTIONS. (IDLLE) YOU SHOULD WONDERING WHAT HOSES IS GOING TO BUG YOU. LOOK FOR THE TINY HOSES TOO. iT´S EASE AND IT´S A COMMON
HEADACHE IM A V 8 MERCEDES.
KEEP IN TOUCH AND GOOD LUCK.

MALACHIAS (BRASIL)

[Todd g]

I have similar problem with 97 and that don't seem to b doing it... Switched injectors and coil packs plugs and checked vacummes with gauge as well as fuel rail pressure and compression check!! I think I'm out of options