Discovery 3 - Roof box G3 - Free user manual and instructions

Product Type	Roof Box
Brand	G3
Model	Discovery 3
External Dimensions (L x W x H)	135 cm x 80 cm x 40 cm
Internal Dimensions (L x W x H)	125 cm x 70 cm x 35 cm
Volume	350 L
Maximum Load Capacity	75 kg
Weight (without crossbars)	15 kg
Material	High-impact ABS plastic
Color	Black (matte finish)
Mounting System	Clamp-on for most roof bars; includes 4 sets of brackets
Locking System	Central locking with two keys
Opening	Dual side opening for easy access
Aerodynamic Design	Tear-drop shape to reduce wind noise and drag
Maintenance & Cleaning	Clean with mild soap and water; avoid abrasive cleaners; lubricate locks annually
Safety Notes	Do not exceed maximum load; ensure even weight distribution; check tightness before each trip; maximum speed 130 km/h (80 mph)
Spare Parts	Replacement keys and mounting brackets available; contact G3 support
Warranty	2 years manufacturer warranty
Country of Origin	China

Frequently Asked Questions - Discovery 3 G3

How do I install the G3 Discovery 3 roof box on my car?

The roof box clamps onto your vehicle's roof bars. Place the box on the bars, align the clamps, and tighten them evenly with the provided tool. Ensure the box is centered and locked. Refer to the manual for step-by-step instructions.

What is the maximum load capacity of this roof box?

The maximum load capacity is 75 kg. Always check your vehicle's roof load limit and do not exceed both limits. Distribute the weight evenly inside the box.

Is the roof box compatible with all roof bars?

It is compatible with most square, round, and aerodynamic roof bars. The included brackets accommodate bar widths up to 80 mm. For unusual bar profiles, consult the manual.

How do I clean and maintain the roof box?

Clean the box with mild soap and water using a soft cloth. Do not use abrasive cleaners or high-pressure washers. Lubricate the lock mechanism annually with graphite powder to prevent sticking.

Can I use the roof box in winter?

Yes, the ABS plastic is durable in cold temperatures. However, avoid over-tightening the clamps in freezing conditions as plastic can become brittle. Remove snow and ice before opening.

Does the roof box affect fuel economy?

Yes, aerodynamics are slightly impacted. The box is designed to minimize drag, but expect a small increase in fuel consumption, especially at highway speeds. Remove the box when not in use.

What is the noise level like at high speeds?

With its aerodynamic shape, noise is generally low. At speeds over 100 km/h, some wind noise may be noticeable. Ensure the box is properly closed and tightened to reduce noise.

How do I replace a lost key?

Contact G3 customer support with your product serial number. Replacement keys can be ordered. Keep a spare key in a safe place.

Can I paint or modify the roof box?

Painting is not recommended as it may affect the material's integrity and warranty. Do not drill holes or attach unauthorized accessories.

What should I do if the lock jams?

Try spraying a dry lubricant like silicone spray into the lock. Do not use oil-based lubricants. If the problem persists, contact G3 support for assistance.

USER MANUAL Discovery 3 G3

Technical line drawing of a car interior showing dashboard, rear seats, and engine compartment (no text or symbols)

CJA D K

- Leggere attentamente le istruzioni d'uso prima di utilizzare il box. • Please read carefully these instructions before using the roof box. • Lire attentivement les instructions avant d'utiliser le coffre de toit. • Vor benutzung der Dachbox, bitte Montageanleitungen sorgfältig durchlesen. • Leer Atentamente las instrucciones para el uso antes de utilisar el portaequipajes. • Kérjük a boksz használata előtt olvassa el figyelmesen a használati utasítást.

Peso box:

Modello	Capacità
Cargo 0, 1, 7, 9, 11	10 kg
Cargo 2, 3, 8	12 kg
Cargo 4	11 kg
Cargo 5	13 kg
Cargo 6, 10	15 kg
Discovery 3	12 kg
Discovery 4	11 kg
Discovery 5	13 kg
Discovery 6	15 kg
Cargo 134 “Galaxy 4”	12 kg
Cargo 135 “Galaxy 5”	14 kg
Cargo 144 “Antares 350”	12 kg
Cargo 145 “Antares 450”	14 kg
Cargo 150 “Pegaso 320”	10 kg
Cargo 154 “Pegaso 340”	12 kg
Cargo 155 “Pegaso 450”	14 kg
Cargo 160 “Titan 320”	10 kg
Cargo 164 “Titan 340”	12 kg
Cargo 165 “Titan 450”	14 kg
Cargo 169 “Titan 320”	10 kg
Cargo 170 “Arjes 320”	10 kg
Cargo 172 “Arjes 280”	12 kg
Cargo 175 “Arjes 480”	15 kg
Cargo 180 “Hydra 320”	10 kg
Cargo 182 “Hydra 280”	12 kg
Cargo 185 “Hydra 480”	15 kg
Cargo 189 “Hydra 320”	10 kg

Technical line drawings of two mechanical components labeled FIG. A and FIG. B, showing cross-sectional views (no text or symbols beyond labels)

MONTAGEANLEITUNG