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OEM‑Equivalent 30799291 | PETG Black | Twist‑Off Design
This plastic cap sits on your Volvo’s windshield cowl grille and twists off to give access to the brake fluid reservoir underneath — a part that’s easy to lose and prone to cracking during service.
This replacement restores a clean, factory‑correct look and proper function without needing to source expensive OEM trim.
🔧 Features
🧩 Direct‑fit twist‑off design — matches factory operation, no tools needed
🚗 Fitment: Confirmed across multiple Volvo platforms: S60, S80, V60, V70, XC60, XC70
🔥 Material: 3D‑printed PETG Black — durable, UV‑resistant, ideal for exterior cowl trim
🔩 OEM Reference: 30799291 (Genuine Volvo / OEM‑equivalent)
🛠️ Non‑sealing trim piece — does not contact brake fluid or seal the reservoir system
⚠️ Fitment Note: Some model‑year variations exist — double check OEM Part Number before ordering
Made to order in Chattanooga, TN
⚡ Quick Install Instructions
1️⃣ Locate the cowl grille access cap
It sits on the plastic cowl panel directly above the brake fluid reservoir.
2️⃣ 🔄 Twist counter‑clockwise to remove
The cap is designed to twist off — no tools required.
3️⃣ 🧹 Clean the opening
Remove any dirt or debris around the access point.
4️⃣ 🔩 Install the new PETG cap
Align the cap and twist clockwise until snug.
It should seat flush with the cowl grille.
5️⃣ ✔️ Final check
Confirm the cap rotates smoothly and sits evenly.
📌 Notes
This part is purely an access/trim cap, not a fluid‑system component.
PETG provides improved durability over brittle OEM plastic.
If your cowl grille has been replaced or modified, send a photo for fitment confirmation.
Disclaimer: This is not an OEM (Original Equipment Manufacturer) part. It is a 3D-printed reproduction designed to replicate the fit and function of the original component. As a reproduction, it may have some differences from the OEM part in feel, sound, fit, or overall finish. Minor adjustments may be needed during installation, and normal care should be taken when installing or removing the part, as it may not have the exact same strength or flexibility as the factory original. By purchasing, you acknowledge this is a reproduction part and not a genuine manufacturer component.
Buy on Etsy → — ships from our Etsy shop with Etsy buyer protection and reviews.
OEM‑Equivalent 30799291 | PETG Black | Twist‑Off Design
This plastic cap sits on your Volvo’s windshield cowl grille and twists off to give access to the brake fluid reservoir underneath — a part that’s easy to lose and prone to cracking during service.
This replacement restores a clean, factory‑correct look and proper function without needing to source expensive OEM trim.
🔧 Features
🧩 Direct‑fit twist‑off design — matches factory operation, no tools needed
🚗 Fitment: Confirmed across multiple Volvo platforms: S60, S80, V60, V70, XC60, XC70
🔥 Material: 3D‑printed PETG Black — durable, UV‑resistant, ideal for exterior cowl trim
🔩 OEM Reference: 30799291 (Genuine Volvo / OEM‑equivalent)
🛠️ Non‑sealing trim piece — does not contact brake fluid or seal the reservoir system
⚠️ Fitment Note: Some model‑year variations exist — double check OEM Part Number before ordering
Made to order in Chattanooga, TN
⚡ Quick Install Instructions
1️⃣ Locate the cowl grille access cap
It sits on the plastic cowl panel directly above the brake fluid reservoir.
2️⃣ 🔄 Twist counter‑clockwise to remove
The cap is designed to twist off — no tools required.
3️⃣ 🧹 Clean the opening
Remove any dirt or debris around the access point.
4️⃣ 🔩 Install the new PETG cap
Align the cap and twist clockwise until snug.
It should seat flush with the cowl grille.
5️⃣ ✔️ Final check
Confirm the cap rotates smoothly and sits evenly.
📌 Notes
This part is purely an access/trim cap, not a fluid‑system component.
PETG provides improved durability over brittle OEM plastic.
If your cowl grille has been replaced or modified, send a photo for fitment confirmation.
Disclaimer: This is not an OEM (Original Equipment Manufacturer) part. It is a 3D-printed reproduction designed to replicate the fit and function of the original component. As a reproduction, it may have some differences from the OEM part in feel, sound, fit, or overall finish. Minor adjustments may be needed during installation, and normal care should be taken when installing or removing the part, as it may not have the exact same strength or flexibility as the factory original. By purchasing, you acknowledge this is a reproduction part and not a genuine manufacturer component.
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