W177 Start Engine button fault

[rimedre]

Since the Start Engine Button of my vehicle has fading and traces of use, I bought a button from Aliexpress that looks good and suitable for my vehicle for replacement. In order to replace the plastic of the Start Engine button, I had to remove the Start Engine part from the car and disconnect it from the electronic input, then I replaced the plastic with the button from Aliexpress. But when I put it back in my car, the car did not start at all. Unfortunately, I had to call the Mercedes Help team, they came and deleted the errors with Xentry, after that the car started to work, but the problem is that the car does not start without holding the button for 3-5 seconds. Normally, the button worked directly with a touch without holding the button pressed.
What should I do to fix this error?

(There was nothing like a chip in the changed button, it was just a plastic)

Picture of the product I bought from Aliexpress.

 

[MBtreestump]

If you take off the Aliexpress cover and press it, will it start normally? I saw a replacement button for a Sprinter W907 that had the inside a little deeper than the original and sometimes it only worked if you pressed the button harder than usual. I finally had to take some sandpaper and grind the lower part down.

 

[rimedre]

I think this is a software problem. Because the car wouldn't start until the error was deleted using Xentry.

 

[rimedre]

Xentry reports that there is a short circuit in the engine Start/Stop system. I may have accidentally damaged the board when replacing the key. So I bought a used engine Start/Stop module (A1779051001) on eBay.
Do I need to find out this on the car when replacing the module?

 

[mhhautos]

Most likely the button you purchased from AE has different wiring than the original Mercedes Start/Stop button which is what is causing the error code.

 

[rimedre]

I only bought a plastic button on AliExpress.

 

[mhhautos]

In this case, the cause may be a bad connection (most error codes appear because of this) or the system may need to be cleared after reconnecting the electronic input.