I knew this was coming I have to smog my car and my pump is bad I have bought 2 of them off Ebay and one would not fit if was way to big and the 2nd one I got car would not read it being there so I'm now looking for one for sale if anyone has one please let me know .part # 000-580-000-021...... Thank you

 

Well this is the 3rd pump I have bought that does not fit the bracket they all have been too big but it does work so I can pass California smog and they don't care how it looks with the bailing wire holding it in place as long as it will pass

 

This is how it looks with the wire holding it in place so I can just pass smog

 

Here's the pic did not upload the 1st time...

 

is that the one I pm'd you? If not I'll buy it...

hmmm...looks like it's sold....oh well....

 

Yes it's the one you sent me a pm to buy so I bought it and it's too big but it will work so I can pass calif smog ... It sure looks ugly but it will work for now...

 

interesting 'cause he checked it against my SLK32 VIN and said it was good....

 

I can send you more pic. If you like ? .... the one on my car is Moore round and the one I bought is Moore square and it's bigger and longer and will not fit in the bracket on my car but it does work and the check engine light is off now so I can get my calif smog done I'm happy with that ... Again thank you for the lead

 

My SLK32 Parts list calls for MB# A 000 140 43 85 (Bosch#0 580 000 021) Which is the same as the one on my SRT and the NA.
Gets confusing after a while Eh?

 

I'm just disappointed this guy's checked against my VIN and said - all good....
he claims to even have taken it from a 2002 SLK32 - same as mine...and yet it doesn't line up....
oh well....just gotta triple check hey.

 

By be. you do know I'm driving a 2005 SRT-6 and not a SLk32 Im thinking they used a diffant setup or maybe the guy that owned it before me change someting???

 

I didn't know - but I assumed you had an SRT6 given this is the SRT6 forum...
my pm said...
"If you are still looking - there is one in the US I previously verified with him by sending my SLK32 VIN# - just to be sure..."

I would have thought them the same hey...obviously not.
maybe its to feed all that extra hp the SLK32 has...LOL

 

Has anyone ever built a secondary/auxilary air pump simulator to replace the actual pump in these? I/ve seen them done and working in e36 bmws before, no check engine light or anything.

 

The Mercedes part number 580 000 021 (Mercedes) is the same bosh pump as part number 580 000 023 (Audi). Even the number stamped on the plastic is the same. You should be able to find a new Audi pump for around $200 by doing an online search by part number. After my first pump failed (burned up) the new pump stayed on too long, so I unplugged it before it fried also. I pulled out the relay box and found the relay for the pump stuck closed. I replaced the relay and no more problems.

 

These parts have different part numbers for a reason, they may look the same and they may actually work just fine but to say it is the same pump is not true. Probably one is to Mercedes specifications and the other to Audi specifications. If they were identical they would have the same Bosch part number.
A large company like Bosch does not keep identical parts on the shelf with two different numbers.

 

Like I said, the number stamped on the plastic, which is the manufactures (Bosch) identification number, is the same. That means the pumps are the same. The only difference is the removable sticker. If it makes someone feel better they can peal off the sticker and put it on the new Audi pump and everything will be identical.

 

I beg to differ, the part number stamped on the plastic is the part number of that particular plastic part which could be used on all sorts of different air pump models. The Bosch number is clearly the part number on the sticker and is the result of all the different parts assembled to make that particular model of air pump.
The plastic parts have to have a number on them to identify them, the number may also indicate where and when it was made, what mold it was made on, and the particular modification number to that part, in most cases another stamp indicates what material it is made from for recycling laws. I designed molds so I have some knowledge of this matter.

 

100% correct and on point.

 

It must be a nightmare to be the poor smuck responsible for putting the right sticker on the right pump. Does the Mercedes pump which is indistinguishable from the Audi pump, including the only number on the two pumps, get a Mercedes sticker or an Audi sticker? I am glad I don't work for Bosch.

 

A tale of two GM plants... I had a 1989 Buick Park Ave, 3.6L FWD transverse motor. I needed a coil pack (one of the three dual plug coils) and went to research the Buick PA part number. The ONE coil at the time was $114.00 plus tax (and change, its been almost two decades). Now me being the el-cheapo I am and knowing the same motor was in the 89 Le-Sabre (and a multitude of other GM products) I went and researched the Le-Sabre part number. I got that coil pack brand new for 31 bucks (and tax/change). So, manufacturers do the part number/part switch many times, and the 'level' of market of the car makes a difference on what price you pay. The two coil part numbers were different BUT the part inside was absolutely identical. I believe proper homework should be done whenever ANY part number is substituted, just be aware they just might not work. I feel as 180, that if someone takes your post at face value without insuring the part is absolutely swappable, that monies may be lost for a variety of reasons (especially if anything was defaced/damaged in the attempt of making it work). I sure haven't spent that money for that particular part swap, so I cannot say for sure they are the same internally.