Proir to getting my Marklin starter set I had never seen the style of couplers used on European models. Having so little experience I am not sure if there is any tricks or adjustments I can do to make them work better. My BR50 has a telex coupler on the back but I find the operation hit and miss for decoupling the cars.

If anyone has any tips or tricks they can pass on I would really appreciate it.

Thanks
Darren

As dndtower85 says; first make sure that your loco is not having a magnetising problem.
Other than that, the "trick" is just to make sure that the couples are "relaxed", not "streched" when trying to uncouple. With that I mean; once you stop the train, move a little back (in reverse), say maybe 5mm (or 1/4"). That will permit the loop to lift free from the hook.
Then with the TELEX still activated, move the loco away from the waggon(s).