722.9 gearbox service

[Merceclass]

can someone tell me the gearbox service on my car its a 211 2008 with 722.9 box merc say its a service at 39000 from new then sealed for life thereafter indy says its every 37500 help appreciated thanks

 

[AMGeed]

Your indy is correct. Every 37.5k miles.

 

[HB]

As above.

Merc would like your gearbox to explode and give you a 7k bill.