Doug427

I have a recurring P0410 code popping up on my 2006 E55. I have a STAR unit, but quite honestly I'm not yet very good with it yet. Running the STAR diagnostic, at one point it triggers the air pump. The air pump does run when commanded to by STAR, so I believe the pump is good? I have read in some threads that the pump can be "coded" out with STAR and the car will just not know that the pump and system, I suppose, is there. Here in Houston we do emissions testing at inspection, but from what I have read, eliminating the pump should allow the car to still pass inspection. Is that true?

I have searched quite a bit, but it seems that each different model and even different years have different locations of components in this system. The threads all turn into a mess, and it becomes hard to determine what model and what year they're talking about, then others jump in about their car without telling what their car is, and before you know it it's all a big, indecipherable mess.

All that being said, what is the best way to easily, permanently deal with this? Should I just use STAR to code away the system completely? If so, can someone point to the procedure or describe it for a STAR newbie like me?

Should I not code it out but check the relay and fuse? Easy to do if someone can tell me where the fuse box is that holds them in my 2006 E55, and which relay and fuse it is. Again, I did search, but you get about a dozen different answers, depending on model and year, and many times one or both of those vital details are not even mentioned. Again, a big, indecipherable mess.

Any help you guys can lend would be greatly appreciated.

Thanks.

Doug427

Anyone? I'd appreciate a little help on this one, it's got me somewhat baffled. Thanks.

Notdke9fdkfjekrjrkj123

Maybe some help from the link,i havent dealt with the airpump so i cant help,the star system is like a enigma machine to me also ;-)

https://mbworld.org/forums/w211-amg/640351-secondary-air-pump-issue.html


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JoeJErnst

I was able to code out my SAI using these instructions that Sean O'Leary posted to the AMG Enthusiasts Facebook page:

- Control Units
- Drive
- ME 2.8
- Development Data
- Control Unit Adaptations
- Variant Coding
- Implizitze Kodierung-C6 AMG (or something along those lines lol)
- Code 244 to "Abgas - Code, max. Einschaltdauer Sekundaerluftpumpe = unbelegt"

Doug427

Here's what has me stumped. The air pump is running. I can hear it when the car is idling cold, and it eventually stops, which I believe is normal operating procedure? Also, with the STAR machine hooked up, the diagnostics procedure activates the pump to see if it's working, and it starts right up on cue. If it's not the pump triggering the P0410 code, what could it be? Does it make sense to code the pump out if it's working? I'm just stumped on this. Any thoughts from you guys?

hayseed

iTrader: (2)

I believe the air pump runs to get the cats up to temp quickly so its not absolutely necessary,, try coding it out,, if the error pops back up then re-enable and continue your search ? dont know your answer but its a start

Benztech858

When the pump is actuated by ME, the vacuum switchover valve is also actuated. If the vacuum is insufficient then the test will fail. If the valves won't hold vacuum then they aren't opening and allowing the pumped air into the cylinder heads. Try going into "complete list of guided tests" and find the SAI function chain test. It should show you the values of the upstream O2 sensors and whether or not the air is getting to them. Good Luck!

grafs

I'll take a stab here. Does your car have greater than 110k miles? The pump lines can become clogged, or, more obviously, pulverized. Follow the lines from the vacuum, and see if you can see any visible damage. There's a great video of a guy diagnosing this issue here: .

Doug427

This worked perfectly. I finally got to it tonight. It's all menu driven, for those of you who have a STAR machine or access to one. It's incredibly easy. Just follow the steps that Joe laid out here, and you're done. No need to understand or type German, it's all there to click on.

My understanding is that the air injection system that causes all these problems only runs for a minute or two on initial start up to quick heat the cats up to reduce emissions. This procedure doesn't fix the issue that causes the code, but rather hides the entire system from the car, the car no longer knows the system exists. Apparently the car doesn't need the system to run well, it's just a bit of a band aid to help certify the car for lower initial start up emissions. It ceases to operate after the first minute or two after startup anyway, so the car runs perfectly without it. The only downside is that it might put out a very tiny amount of emissions more than before upon the first minute after startup. If my understanding of what this does is wrong, one of you guys who is far more knowledgeable than I am please correct me.

I write this for the next guy who gets this darned P0410 code, which seems to be very common and hard to diagnose. Thanks to everyone for the help. So far the check engine light is staying out after I cleared it with STAR. Thanks again!

tw2

Yep spot on, it simply disables the air injection system. Ad you mention, it is simply for emissions reasons and lets be honest, I doubt many members care a whole lot about it. People often do this instead of fixing broken pumps and other issues. You can probably physically delete the system as well.

Doug427

I was under the impression that if I code out the air injection system as described above, I would not get a code P0410. Now I don't know where to begin to diagnose this. It's back. I do know that when I started the car this morning I did hear the air pump kick on, which surprised me. Does coding it out make the pump inoperative, or does the car just ignore the codes it produces? Maybe when I coded it out with STAR I didn't save or exit the changes correctly? Any of you tech savvy guys with these cars have any ideas? I'm stumped at this point.

mbmg

I had the same problem of the reoccurring P0410 code after trying to code it out via STAR. The following finally worked on my ’04 E55. Coding out EGR and O2s worked the first time I did it and I didn’t even have the engine running (just ign 2 on). The SAI was much more difficult.

After connecting STAR, start car (engine running not just ign 2 on).
Unlock ME 2.8 SFI ECU for SAI programming to take effect.
>control unit groups
>drive
>ME 2.8 SFI
>development data
>actuations
>complete index of actuations
>steuergerät entriegeln or sitzung variantcodierung einshalten ->confirm

Sitzung variantcodierung einshalten was the one that finally worked for me so that I could then use the instructions below for coding out SAI. The fields in the Implizitze Kodierung ME 281 AMG C6-Stand screen all displayed the current drop down setting which was different prior to setting in programming mode. Before they were all blank or only showed a “----“ in each field but I could see more with the drop down menus. Also, programming mode seems to reset automatically once the car is turned off since when I went back into the fields they were back to the blank “----“.

> Control Units
> Drive
> ME SFI 2.8
> Development Data
> Control Unit Adaptations
> Control Unit Adaptations (Variant Coding)
> Implizitze Kodierung ME281 AMG C6-Stand
> Code 178 to Diagnose aus
> Code 244 to "Abgas - Code, max. Einschaltdauer Sekundaerluftpumpe = unbelegt"

I also coded out 250 Abgas – Code, Regenerierung geregelt to aus, but this might not be needed.

Please keep this thread updated with your outcome.

Redwood415

you will absolutely need air to pass inspections for emissions, your 02 sensors wont read enough oxygen in the exhaust stream and your MIL lamp will trigger, went through this with my 210 (4.2L M119 motor) but same principal.

mbmg

I pass emissions in AZ as it's an OBD2 scan with a few visual checks. Coding these (EGR, O2, and SAI) out via STAR will set those tests as "ready" and hasn't triggered a CEL.

Doug427

I went back into the garage today to check out the recurrence of the check engine light. As I expected the code P0410 was back. I went into actuation's, and activated the secondary air pump, and it definitely came on, I could hear it as it's pretty loud. I was surprised, as I thought that after coding it out with STAR it would not activate, but it definitely did. I then went back into the area where I coded it out. Looking at code 244, it had reverted back to blank. Previously I had changed it from blank to "Abgas - Code, max. Einschaltdauer Sekundaerluftpumpe = unbelegt". However at some point, somehow, it reverted back to blank. It takes a few minutes and/or starts for the check engine light to come back on. I'll use the car to drive to work tonight. I'll let you guys know what happens.