E320CDI small circular 'grille', approx 3/4" in diameter?

[BrianM]

Just getting to know my E320CDI. On the dashboard, just to the left of the steering wheel, is a small circular 'grille', approx 3/4" in diameter. What does that do? Can't find any mention of it in the handbook. Don't believe its an important feature but just curious!

 

[Blobcat]

Could be temp sensor for the AC

 

[jberks]

I've often wondered too - made the same assumption as I can't think what else it would be there for.

 

[BrianM]

Ive been in touch with MB and they advise it's a micro-phone vent for the telephone installation kit !?!?!

 

[jberks]

I thought that was in the mirror!

 

[Blobcat]

I asked the question in my MB dealer this morning, they didn't know what it was for. It is only on the E class and I still think it is to do with the heating. I've just had a search through the Russian site and come up the attached
http://www.detali.ru/cat/oem_mb2.as...GA=722.626&CT=F&cat=64V&SID=68&SGR=205&SGN=05
I'm pretty sure it is part No. 25 (Ventilation Screen).
I thought the mic for the car phone kit is above the interior mirror, there is a grille up there on almost all MB's.