Mercedes SL stuck in park

[Golf6187]

Hi Everyone
Can anyone help me , my 2003 Mercedes SL has been stuck in park and I've found out it's the the solenoid in the gear shift that's not popping the plastic arm up
Can anyone let me know who sells the solenoid on it's own
I'am finding it impossible to find anyone who can sell these or repair them
Hope that helps
Golf6187

 

[flowrider]

Are you sure it's not the switch on the brake pedal

 

[Golf6187]

I think i was told that if the break lights work then it's not the switch on the break pedal , is that right?
Could it be something else?