Coming from the direction of Munich/Lindau/Friedrichshafen:
Drive along Lake Constance on B31. After Überlingen, keep going towards Stockach. Get onto the autobahn A98 towards Singen/Stuttgart. Keep going towards Singen/Schaffhausen. The autobahn is now called A81. After the tunnel, take the first exit at Hilzingen and turn left. Go straight and at the traffic light towards Singen/Industriegebiet. You'll pass through another tunnel. Stay on the road until you get to the traffic light, go straight onto Georg-Fischer-Strasse. Straight ahead you'll see the Supermarket on your left side. Turn right into Bohlinger Strasse. After approx. 70m you'll see the BREYER main entrance to your left.