Right dipped beam defective

Hello, with our V70 D5 Bj 2006 the right dipped-beam failed. Message incandescent lamp defective. No problem, just switch into the workshop and lamp. Unfortunately this did not succeed. In the meantime I was already 2 times in the workshop and still drive one-eyed. It is to be observed that when the ignition is switched on, both lights turn on, but the right one again after about 1 second. Now the workshop plans a two-day act to find the cause. On my question, whether you d as lamp module or relay on the control board could not even test with the one from a same vehicle, I was told that the module and also the relay are vehicle-specific programmed and can not simply be replaced. As consolation then on the last visit a plastic lever on the engine was removed and pressed into the hand. “That’s unnecessary” The part is 9cm long, about 1cm wide, has a ball holder at one end and at the other end a hole, about 3mm. can tell me how I go on most meaningfully, or does someone know a workshop in Southwest Germany (I live in Villingen-Schwenningen ) where there is someone who has a plan in the area? ( I don’t mean schematic ) Thank you and always good ride hans164