Hi xx (a first name and short presentation would be great)
Not sure what happened in your case and if the set is brand new (never used before).

The MS2 manual is here https://static.maerklin....c07622e4781702905878.pdf

The MS2 is set to ignore the MFX protocol
The simplest for a first start is to reset the MS2 to factory setting
settings ==> Check page 20 of the above manual Reset (Factory Default Settings MS2)

The MFX registration is garbled
One possibility is to install the loco while the power in ON. NEVER do this as it starts a registration process that is later interrupted and garbled.
On the MS2 you may ask it to find "lost" MFX locos WHILE only the loco in question is on the track.
The fonction Finding a Locomotive on page 7 of the manual allows you to find and control the loco

Reset the loco to factory setting
It will unlock any previous setting someone may have made (on purpose / by mistake)
The fonction Reset Loco (Factory Settings) on the MS2 is explained on page 19

I hope this helps
Cheers
Jean

Hi Kristian
There remains the possibility that the MFX protocol has been blocked
CV 50 allows to select which protocols are allowed.
All protocols allowed --> CV50=15


Cheers
Jean

Simple solution actually.

Did you have the locomotive registered in your library.
Normally, the MS would recognize this and open the locomotive
It is failing to do this and then failing to recognize the locomotive as a new mfx
Look in the manual for the loco and then search through your MS library for the problematic locomotive.
Delete the locomotive from your library
Mfx: 367 004-9 DB AG (unless it was modified from OES)

Then place the locomotive on the track and it should technically recognize the mfx at this point and open a fully functional window

You may also wish to delete any DCC page it has created for that decoder/locomotive

Regards

Mike C

Was the set purchased new from a dealer or was it purchased used/second hand (eBay/tradera/etc)?
If the original owner changed the MFX id, you would have to figure out what was done.

For the moment, connect your MS to a 360mm track section, put your loco on and try adding the loco from the database 29469
See if that works.

Is there a dealer in your area where you could take the loco to see if it works there? I would also recommend asking the dealer to update your MS if needed.

FYI, there are three libraries, the Maerklin database which includes all models that Maerklin provided the factory data for, the 10 registers displayed on your screen at all times plus the extended library of a number of locos that you have added, but are not in the 10 (ready locos) displayed on the screen.

Do you have an analog transformer or an older 6021? Try putting the loco on a test track and move it a bit and then place it back on the MS programming test track.
If you don't have either of these, connect wires to a 9V battery and connect one to the slider and the other to one of the wheels and then disconnect and put the loco back on the test track.

See if that helps the MS recognize it.

Regards

Mike C

Hi!
Theoretically Märklin mfx locos will not respond to their MM address if there is mfx or DCC present on the track.

By default, your MS2 should be configured to emit all protocols to the track (mfx, DCC, MM). Please check if all track protocols are activated.

Using DCC you should be able to trigger all functions, but without automatic registration.

Using MM you are limited to 5 functions per address. You should be able to trigger more functions by using four addresses for that single loco, but it makes things complicated and this should not be necessary.


Protocols can also be disabled in the loco. If all protocols are active in the MS2, then checking protocols in the loco will be the next step.
Resetting the loco should achieve that easily.

Have you tried writing 8 to CV 8? That should reset the loco.

If the dealer is not too far away, then maybe visit the dealer so your MS2 can be tested with another mfx loco and your loco can be tested with another mfx controller.

So, after resetting the loco and then again adding it through MM resulted in that the loco doesn't respond to any commands anymore.

Make sure the MS2 is set to "MM" only.

Another possible test is setting the MS2 to "DCC" only and trying Detect Loco again.

What happens if you manually add a locomotive from the database and select the 29469 from the list?

I still think that you should try powering the loco from an analog source, be it an old transformer. If you don't have one, connect wires to a 9V battery (one lead to slider, one lead to wheel) and let the model run for 10 seconds or more. Then place the locomotive on the programming track and see if it is detected.

Is this the only locomotive that you have at the moment?

Send an email describing your issue to digital(at)marklin.com and maybe Curtis and Rick can help. You can also contact service(at)maerklin.de and see if they can offer you any suggestions.

Regards

Mike C

Is there a BR367 in the list?
If there is, perhaps you can try that to manually enter?

Regards
Jean-Pierre

I doubt it is "brand new". Would it be posible to carefully remove the body, and take a photo of the insides?
Especially to see if something has been changed/soldered.

Also about the MS2 controller; Is it really the original one that should have come with the set?

Is it possible that you have been supplied with a B-ware? (a returned item). -If not from the dealer, then maybe from a distributor?
(Would be interessting to know the name of the dealer. I was once sent a B-ware (sold as new) from a very popular and -by some- glorified german dealer)

If less than 2 weeks has passed since the purchase on internet, you have the right to return it for a full refund. No reason needed.

I would be worried if it wasn't brand new, as that set is still in stock at marklin.

Might be helpful if we know the dealer. Hopefully not eBay although there are good dealers also use eBay but there are a few who will sell without fully testing the goods.