7 speed autobox on E series W212 not selecting D or R when starting occasionally

[jfhuk]

Just lately I've been getting the odd occasion that no gear is being selected when I move the selector to D or R after starting the car (plus the D or R light in the speedo doesn't come on) the car just sits in Park (P). If I restart the car and select the gear again then I can select the gear without issue. Any ideas?

 

[JDL60]

Could be gearbox ECU fault

 

[rifiki]

Electro plate? Had similar problem with CLK, around £500 to fix.