Active bonnet malfunction

[Sr108]

Had this problem for a while now , car telling me the bonnet is open showing pic of car with red bonnet open and making dinging sound constantly . Had someone work on car and he did something and the dinging sound stopped and it showed a different message saying " active bonnet malfunction " something like that in white text.

Recently it's gone back to the red bonnet pic and the dinging sound . Just plugged in my icarsoft diagnostic thing and I found this ( see pics ) I pressed the " clear fault memory " option but it didn't do anything ..

Any hacks to get this dinging sound and warning on dash to go away ?

Thanks

 

[Uncle Benz]

It’s usually the bonnet latch switch on these E class’. Often a really really hard slam will do it, but a new switch is the correct fix

 

[AMGeed]

As above. Had the same issue on my W212 E63 and a firm slam cures the bonnet open warning.

 

[Headhurts]

As above answers my S212 E350 had this problem from new it required a firm slam to close unlike my GLC which is fine.

Robin