I use the gutter card screening to block any leaf debris from getting in.

I put this in place years ago on both my E39s.

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2003 530iA Sport - Titangrau Metallic/Schwarz Montana
Build Codes: ZSP/ZPP/ZCW. Born on date: 09/02, Dingolfing, Deutschland
NAV MKIV | PP | CWP | Xenons | Style 42s | Rear Shades | OEM ULF Bluetooth | Euro Armrest | Beisan Vanos Seals |

2003 530i/5Spd Sport - Titanium Silber/Schwarz Montana
| PP | Xenons | Style 42s | OEM TCU Bluetooth | Euro Armrest | Beisan Vanos Seals |

2001 525iA - Anthracite Metalic / Grau Montana
Sold but in the "family"
| Euro Armrest | Beisan Vanos Seals |