S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

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Old Aug 3, 2006 | 02:00 PM
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ajbristol's Avatar
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From: Bristol UK
300SEL (S320)
Help !

This is my first MB and maybe my last !!!! No just kidding, Strange problem for you folks but maybe someone can throw some light on it for me. I'm getting hot air from the windscreen demist vents and nothing from the bottom or side vents when selected, I can also get air con from middle dash vents and intermitant blasts of hot from demist vents. The system also switches itself off intermitantly ?? and back on to air con. strange. Any thoughts on this greatly welcomed. I have had the a/c sys completely checked through and all is well, so I think its the heater / a/c control side of things thats gone bad. Oh the buttons that should send the air down to feet or both feet and demist don't appear to do anything other than light up.

Any help please its doing my head not to mention being too darn hot !
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