Unlike the older version of this article, there are now real GLC-specific mounts. That’s where you should start. Universal mounts are backup options and not necessarily the primary solution.

Mercedes-Benz GLC 300 Mounting Analysis
This interior forces your hand:
What works:
- Custom-fit mounts: Best placement and stability
- Windshield mounts: Reliable fallback
- Carefully placed dash suction mounts: Only in limited areas
What does NOT work:
- Vent mounts: Round turbine vents are a terrible mounting surface
- Cheap adhesive mounts: Curved surfaces weaken adhesion
- Cup holder mounts: Too low and too far back
Reality: This is a custom-mount-first vehicle.
Best Phone Mounts for Mercedes-Benz GLC 300
1. Maser Weller Mercedes-Benz GLC Custom Phone Mount – Best Overall
This is exactly what you want for this vehicle. It’s avmount designed specifically for the GLC dash layout. It clips into the trim near the display and avoids every problem area. Directly above the bezel and includes a MagSafe connector. These work with all iPhones 12 and newer as well as any Android phone with a compatible case.
No suction. No vent clips. No guesswork.
2. JIEZMO Mercedes GLC Dashboard Phone Holder – Best Alternate Custom Mount
This is another GLC-specific mount designed to attach to the round vents. It’s not as refined as higher-end options, but it solves the core problem giving you a usable mounting position.
This is a good backup if the first mount isn’t available or doesn’t match your exact trim.
3. iOttie Easy One Touch – Best Windshield Option
If you want something removable, this is still one of the most reliable windshield mounts available.
The adjustable arm is critical in the GLC as it lets you position the phone without blocking the center display.
4. Andobil Dashboard/Windshield Mount – Best Budget Option
This is a solid lower-cost alternative that still gives you decent adjustability and hold.
It’s not as refined as iOttie, but it gets the job done if you want something affordable.
5. APPS2Car Cup Holder Mount – Only If You Want No Dash Contact
This is not ideal but it’s worth mentioning if you absolutely don’t want anything attached to your dash or windshield. These fit phones and smaller tablets.
Just understand the tradeoff: it sits low so best for apps that are setup prior to driving and not referenced again.
Common Mounting Problems in the Mercedes-Benz GLC 300
- Using vent mounts: They don’t grip turbine vents properly
- Blocking the display: Poor placement ruins usability
- Weak adhesives: Curved dash surfaces reduce hold
- Oversized mounts: Look out of place in a luxury interior
Installation Tips
- Start with a custom mount before trying universal options
- Mount near the display—not on the vents
- Keep windshield mounts low and compact
- Test placement before committing
Related Mount Guides
- Car Phone Mounts by Vehicle
- Mercedes Mount Guides
- Best Suction Cup Phone Mounts
- Best MagSafe Car Mounts
Bottom Line
The Mercedes-Benz GLC 300 is not a vehicle where generic mounts shine.
Start with a custom-fit mount like the Maser Weller option. That’s the cleanest and most reliable setup.
If you want something removable, go with a windshield or dash mount.
And skip vent mounts completely as they’re the fastest way to a bad setup in this vehicle.