CE750

And how do I make it work?

HELL ONA HARLEY

By pressing and holding recerculation button it will close all windows, sunroof or panoramic roof and recerc air in the cabin thus not breathing the funky air in a tunnel. The samething will happen by pressing and holding the charcol filter button, but will rather filter the outside air instead of not letting it in.... The recerc button is what is recommended to use when entering a tunnel and when exiting it simply press and hold the button again and windows and sunroof will return to their prior postions.

CE750

I wonder if it works on the 2-zone cars.. or just the 4-zone?

I'll have to try it tomorrow and report back.

I saw nothing about it in the owners manual.

thanks HOH.

HELL ONA HARLEY

The funtion works on mine, but never use it..... The closest tunnel to me is nearly an hour away and can't remember the last time I used it.

Guess its one of the "little" things that makes these cars so damned expensive...

CE750

Just went out and tried it. COOL! I like how it goes back to the original position on all windows.. too cool.

SAguirre

I use this more often than I ever thought I would. Every time I drive through the Eisenhower Tunnel on I-70 I hit the recirculation button and I make sure all is closed. I actually sometimes also drive with some windows a bit open and the sunroof cracked and this makes it very simple to close everything.

Also, this last summer, when I get in a hot car, I open everything and then after the A/C has done its job for a bit I then press this single button to get everything back to closed.

These are the little things that make a MB a MB, My uncles Lexus LS 430 doesn't have this, nor does any other car I have recently been in. Actually my uncle has been missing his 1999 BMW 740 IL, he likes the Lexus, but it is a bit too Vanilla.

Steve

FlintCDI

Is this a one-touch feature? IE you press and hold the rec. button for say, three seconds and release or do you have to hold it down until all window and roof are completely closed?

CE750

press and forget. very cool.

baubaulu

What is the "charcol filter button"? I could not find it in the manual.

Thanks

ATS

I drive by a sewage treatment plant every day. In both of our Mercedes, I press the button and you would never know it was there - I can't imagine living without it. It is also great when driving behind diesel trucks.

AsianML

smells like

xraymd

Sorry, victim of decontenting. We don't have one.

baubaulu

By the way, i could not see the "Tunnel mode" in the manual? Do you guys know any new sercert functions?

DalBenz

Tried it and it works as described!! Never knew that feature existed!!

jdhoang

I LOVE this forum!! I have found so many useful information here! Thank you!! You guys rock!

CE750

that's because you did like me, and look up "tunnel mode" ... no such words.. IT's just under the description of the button... MB needs to brag a bit more about such features in their book!!

OR maybe MBUSA wanted to hid it from us, since we Americans don't like techology and features like that in our cars (Couldn't resist!)

CE750

are you sure? What's your build date? My April / 05 cars both do it.

xraymd

You have a filter button? Where? While I was waiting for my Feb05 build date E55 to arrive, I read on the forum that the charcoal filter had bit the dust along with the "rest" feature. I do have a recirc button.

SAguirre

If you have a two-zone climate control, then you never had a "filter button." I don't know if the current cabin filter is a charcoal filter, but all W211 in the US have a cabin filter and it is ALWAYS ON.

I know that on the old W210s there was a button to turn on the filter, but it significantly reduced the blower speed.

As far as the "Tunnel" feature, you car has it! I think that you have misread the instructions or the posts.

All you have to do is have some windows and/or the sunroof open. Then with the key in the ignition or better yet, with the engine running, PRESS & HOLD!! the recirc button. After a few seconds of holding the button the windows will start to close. If you let go of the button it stops the process. After all is closed and the recirc button it lit, then you can press AND HOLD it again and it will open all the windows back to the position they were last. This also works on the 4-zone climate control head, I also think that is the only one that had an extra filter, but I might be wrong

I hope this helps, and tell us if it worked

Steve

xraymd

Oh I know I have the tunnel mode. Look up a few posts. I said I have no charcoal filter button. I have the 4 zone (standard on the E55) and I assume there's some sort of filter working.

SAguirre

There is a filter working. I just had my car back from service "c" and they showed me how dirty the cabin filter was. The clean side had a dark looking fiber that might have been charcoal. I am sorry about the tunnel thing then, I misread your post above.

Steve

xraymd

I just read some old posts from July of '04. Seems for '05 the filter may have been changed to a combined charcoal/pollen filter. The ability to turn it on and off was removed. Even reading the old posts, it seems no one was sure what truly became of the filter. My first service is next month. I guess I'll find out then.

konigstiger

If I remember correctly, only the 4-zone had a charcoal filter with smog sensing automatic recirculation of cabin air (std. 500 opt. 320) and electrostatic dust & pollen filter, the dual-zone only an EDP filter. I believe in ’05 all went to the same EDP filter and CF was discontinued.

xraymd

Ah ha! Decontenting raises its head again.

Oh well, I just had yet another enjoyable run home
Believe me, I wasn't worrying about charcoal

HELL ONA HARLEY

As stated here before.... The 04 models are possibly the best of the E class cars out there... By the 04 model year MB worked out the few gremlins (electrical) the car had and the 04 shows absolutly no decontenting of any kind. If I were in the market for a used car, this year would be it. It was pure chance I ended up buying an 04, but glad I have it...