You must adjust the BMW windshield spray nozzle on an E39 after installing. Otherwise it will spray over your windshield.
To adjust, I suggest using plastic picks to carefully aim the nozzles downward. It's okay if aiming is incorrect, you can always adjust. Aiming requires some patience as I have noticed it's difficult to break tension but very easy to over-adjust and aim too low.
Please be careful using metal picks or needles, it's really easy to damage the E39's nozzles.
I replaced my spray nozzles because the intensive cleaning hose was cracked, The hose was extremely hard and difficult to remove from the spray nozzle and I ended up breaking the male adapter.
Intensive Windshield Washer Nozzle is part # 61668361042
Regular Windshield Washer Nozzle is part # 61668361039
Intensive washer hose is part # 61608364209
Regular washer hose is part # 61608364200
