Forget the language..... under the Lufthansa banner all pilots will have to have passed the DLR test in Hamburg - right? which is nothing less than a lottery. Im referring solely to the 9 clock test - give it a go at 1.3sec exposure with 4 numbers missing at 'skytest de' - to pass you need roughly 3 of 4 answers correct each time. Failing the test is a fail for life. And dont invest in these rip off training companies - the cd is all you need to practise the test from skytest. Many experienced airline pilots and captains have failed it. Indeed, my money would also be on most of Lufthansa pilots failing if they were to do a random retake - tests like the clock test are nothing but luck - you either perform at the right moment or you dont
Good luck