ghiaguy

I have always wanted to know why all M113s, from my neighbors E430 to my C55, have that loud whine when you start them up. It lasts a few seconds then tones down, finally disappearing once the engine settles to the proper idle speed.

I did some casual searching, but wanted to know what the forum had to say.

C_DirtyTwo

its the air pump that warms the cats

Quickvr4

It is that dumb pump that always fails...

maverik259

how do you know if it fails?

C_DirtyTwo

mine wouldnt turn off.....but it was just the fuse

Quickvr4

Check engine

arekux

just unplug and clear check engine light when u smog.

Quickvr4

That is what you do and they don't somehow catch it?

ghiaguy

Thanks guys, I had no idea what it was. The car would sound so much better on startup without it... is that ok to say?!?

arekux

Yep it does.

C_DirtyTwo

that might work, your car has to go through all the readiness codes before they'll pass you.

maverik259

good thing I dont do smog checks! lol

kjb55

It's not the air pump.

ghiaguy

what are we thinking it is then?

and BTW - where the hell did you find an ashtray delete?!?

Saaboteur

I believe this is the part number for the ashtray delete:

203 680 52 50

My local Benz indy shop quoted me about C$107 for it, so I haven't ordered one. I just popped out the ashtray itself for extra space.

ghiaguy

cool thanks - at that price I think I'll follow your lead Saaboteur!

MBNiko

Sorry if im not mentioning the correct test guys..... but because I'm running catless I went to my shop (SpeeDriven) and they turned off the test that checks for Cat readiness.. Correct me if im wrong, but I think this is the same test you guys are talking about. It can be turned off! I dont have a CEL even though I have no cats at all.

kjb55

I've discussed it with several MB and AMG techs - and it's only been explained as inherent to the engine. It's been discussed in other posts and anything from oil to power steering pumps have been mentioned. I believe someone took off the drive belt to rule out the pulley driven accessories and the sound is still there - so it must be internal. It's an awful sound.

I visited the AMG factory and was able to write down the list of EU options that could be had on the C55 (or W203) purchased in Germany. That happen to be one of them. You can also track all these mods using EPCnet and picking 203.076 rather than entering a VIN.

pointman

So in place of the ashtray... that part number places what there?

ghiaguy

its a 12v outlet and wide-open tray in the absence of the ashtray


-and thanks for the replies kjb55!

Saaboteur

You can probably get better pricing from the US. We always seem to get shafted on parts prices, whether they are OE or aftermarket.

So I suggest checking locally and seeing what you can get it for. And if the price is decent, let me know and perhaps you can order one for me!!

ghiaguy

So far I had only checked with the dealer once via part request email. No response, which I chalked up to the parts rarity, etc. At that point, I put it on the back burner.
I am taking the C55 to the dealer for the first time to get the SOS Teleaid shut down on 4/20 I will ask them about it then...I'll keep you in mind if they are reasonable

Until then, Ill just pull the ashtray


Haven't tried the online parts catalog mentioned above as I am at work and already buy too much crap from my office

macbryanie

+1

kjb55

There was a lifetime offer made from MB for the SOS teleaid service. I believe $299. Just an FYI If you were having it disconnected because of the ongoing charges that used to be the only offer.

pointman

Damn it. Now I regret asking, cause now I want it.