Frequently Asked Questions
Everything you need to know about this head unit
Connect the single RCA cable with the yellow plug (included in your package) to extend your Bluetooth signal. This cable doubles as both a camera input AND a Bluetooth/WiFi antenna extension. The two small blue wires attached are antenna boosters that significantly improve connection stability. This simple connection takes 30 seconds and resolves 90% of Bluetooth issues. Make sure it's firmly connected even if you're not using a rear camera.
Try these proven solutions:
1. Quick Fix: Settings → Apps → Z-Link → Disable → Enable → Open (repeat each use)
2. Check Cables: Use the data/charge USB cable (not charge-only)
3. Bluetooth Setting: Disconnect all other Bluetooth connections - CarPlay needs exclusive access
4. Factory Reset Z-Link: Find the pink 'RESET' app, restart, reconnect Bluetooth, then try Z-Link
5. Sound Issues: Switch audio source to 'AUX' or 'USB/AUX' in your vehicle menu
Most issues are resolved with step 1 or 3!
The processor differs between models: The 2/32GB has a 4-Core processor, while 4/64GB and 8/128GB models feature the powerful 8-Core Cortex-A55 processor. Combined with RAM differences: The 2/32GB model with its 4-Core processor and limited RAM may experience slowdowns with heavy multitasking. The 4/64GB with 8-Core provides smooth performance for most users - no lag, seamless app switching, and enough storage for maps and music. The 8/128GB with 8-Core offers maximum performance with its generous RAM allowing unlimited multitasking and massive storage for extensive media libraries. Think of RAM like your desk space - more RAM means you can have more apps open simultaneously without slowing down.
Absolutely normal! These head units are complete replacement systems with their own GPS antenna, microphone, and Bluetooth module. Your factory connectors for these features won't be needed anymore. The important connections are: main power harness, speaker outputs, and the yellow RCA cable (even if not using a camera - it extends Bluetooth range). Any leftover factory plugs can be safely tucked away. If you're unsure about any connection, our support team is here 7 days a week.
Z-Link updates are handled through system firmware updates. Go to Settings → System → System Update. If an update is available, download it to a USB drive (FAT32 format) and install. Important: Never download Z-Link APKs from unofficial sources - they won't work and may cause issues. If you're having compatibility issues with newer iOS versions, the disable/enable workaround (Settings → Apps → Z-Link) usually resolves them while waiting for official updates.
Consider your usage:
• 2/32GB (4-Core): Budget option - fine for basic use, but may lag with multiple apps due to 4-Core processor and limited RAM
• 4/64GB (8-Core): Sweet spot - smooth Android Auto/CarPlay, multitasking, and ample storage
• 8/128GB (8-Core): Premium choice - unlimited multitasking, massive storage, future-proof for years
Most customers choose 4/64GB for the perfect balance of performance and value. The extra RAM makes a huge difference in daily smoothness!
The yellow RCA cable's blue antenna wires also boost WiFi signal! Make sure this cable is connected. Additionally, try these tips: Position the blue antenna wires away from metal surfaces, check that your phone's hotspot is set to 2.4GHz (not 5GHz) for better range, and ensure the head unit's WiFi sleep policy is set to 'Never' in Settings → WiFi → Advanced. For best performance with wireless CarPlay, keep your phone within 1-2 meters of the head unit.
Go to Settings → Sound → Equalizer and adjust to your preference. For more volume, increase the 'Loudness' setting. The 4/64GB and 8/128GB models have superior audio chips that provide cleaner, louder sound. If you have an amplifier, use the RCA outputs for best quality. Also check Settings → Factory Settings (password usually 126) → Audio settings for additional gain controls. Remember: higher-spec models (4GB+) include premium audio components for noticeably better sound.
Yes! Most vehicles work instantly. If not, use the steering wheel learning app: tap the steering wheel icon, press each button on your wheel, and assign functions. For newer vehicles with CANbus, we provide CANbus modules for automatic setup. Some vehicles may need the Key1/Key2 wires connected (usually included in our harness). If you're having trouble, let us know your exact vehicle model and we'll provide specific instructions.
We offer a 30-day return policy. If it doesn't fit or there's a compatibility issue, we'll work with you to resolve it. If you change your mind, a 20% restocking fee applies. Our team verifies compatibility before shipping to minimize issues. We provide installation support 7 days a week to help resolve any problems. With our 3-year warranty and Australian-based support, you can purchase with confidence. Full details in our Refund Policy.
The Mercedes-Benz GL-Class Historical Journey:
First Generation X164 (2006–2012):
Originally introduced at the 2006 North American International Auto Show, the Mercedes-Benz GL-Class X164 arrived globally as the manufacturer's first full-size luxury SUV designed explicitly for buyers demanding significant interior space, refined comfort, and robust all-terrain capabilities. Built on a versatile uni-body platform inspired by the smaller M-Class (later known as the GLE-Class), the GL-Class fused luxury and practicality with impressively capable off-road credentials—highlighting Mercedes-Benz's dedication to upscale family motoring combined with genuine on- and off-road versatility.
The GL-Class was especially praised in markets such as North America and Australia, where expansive comfort, seating for seven adults, powerful engines, and reliable AWD systems resonated highly. In Europe and Asia, the GL-Class attracted attention as a prestigious, large family crossover SUV and executive vehicle with significant road presence, generous equipment, and refinement offering true versatility.
Among the popular engine variants, the diesel-powered GL 350 CDI (known as GL 350 BlueTEC, especially recognized in North America) stood out prominently for delivering an exceptional balance of power, fuel efficiency, and satisfying driving dynamics. Its refined and robust turbocharged V6 diesel engine produced significant torque, ensuring authoritative acceleration and impressive towing capabilities, all without sacrificing meaningful miles per gallon. It comfortably satisfied discerning buyers seeking solid daily practicality combined with long-haul travel comfort, becoming a long-standing favorite.
The GL 350 model quickly won over automotive critics and discerning buyers alike with its responsive performance, luxurious interior appointments, and an extensive suite of advanced safety features, including adaptive cruise control, PRE-SAFE collision prevention measures, and electronic traction management optimized for various terrain conditions. The spacious cabin featured elegant styling, luxury-grade materials, and sophisticated amenities that substantially elevated the experience of families and business users alike. Consequently, the GL-Class firmly established Mercedes-Benz within the full-sized luxury SUV segment, achieving strong appreciation globally throughout its initial X164 generation.
Advancements and Redesign (2012 and Beyond):
Following the original success of the X164 platform, Mercedes-Benz continued its refinement of the GL-Class in subsequent generations, renamed GLS from 2016 onward to align with the brand's refreshed SUV naming convention—GLA, GLC, GLE, and GLS to reflect their position in Mercedes’ SUV hierarchy aligned to the C, E, and S-Class sedans. Later GLS generations continued the legacy of spaciousness, advanced technology, and powerful drivetrains initiated by the original GL-Class, reinforcing Mercedes-Benz’s clear visionary role in defining modern luxury in this category.
Optimizing the GL 350 Experience with Advanced Infotainment:
As fine and thoughtfully engineered as the original GL-Class interior remains, technological progress has significantly advanced automotive infotainment standards today. Designed specifically with this model in mind, forward-thinking aftermarket infotainment solutions, such as those provided by Brummstadt, substantially revitalise in-vehicle functionality and user experience. Compatible with the Mercedes-Benz GL-Class X164 (including the GL 350), a premium head unit delivers naturally integrated support for wired and wireless Apple CarPlay and Android Auto—providing intuitive and high-quality multimedia and navigation connectivity aligned intuitively with contemporary expectations.
The Brummstadt head unit efficiently accommodates versatile navigation options that include apps such as Google Maps, Apple Maps, and WAZE, incorporating live traffic data, accurate turn-by-turn guidance, and seamless cross-device integration. A scenario showcases this advancement—imagine dining at an elegant restaurant with loved ones, casually confirming a friend's location on a phone. As everyone steps into the GL 350 for the drive across the city, the pre-selected route automatically and naturally transitions from the user’s smartphone to the comprehensive infotainment display via wireless connectivity, easing the transition smoothly from leisure time to stress-free navigation.
Further elevating safety and comprehensive driving assistance, optional integration of 1080p high-definition recording cameras offers substantial enhancements, simultaneously providing real-time parking visibility and evidentiary video support for reassurance in any unexpected incident. The Brummstadt head unit introduces additional compelling possibilities also, such as games accessible by connecting secondary controllers through built-in USB ports, allowing rear-seat occupants to engage together in multiplayer entertainment during extended family journeys, transforming otherwise mundane journeys interchangeably into engaging communal experiences.
In addition, smart voice technology augments convenience by intuitively managing multimedia, navigation, and seamless integration with connected devices. Simple voice commands directed at the built-in assistant (“Hey Siri, please adjust the porch lighting!”) extend the vehicle's presence into larger life scenarios, ensuring practical, intuitive, and interactive lifestyle benefits beyond merely the steering wheel—affirming modern vehicles as central hubs of personal connectivity.
The Advantages and Rewarding Driving Experience:
The Mercedes-Benz GL-Class combines undeniable pedigree, authoritative road presence, capable performance, and luxurious refinement. The successful marriage of a smooth yet robust V6 diesel powertrain, elevated cabin comfort, innovative safety systems, and reassuring traction management across diverse road conditions leaves an enduring impression. Enhancing thoughtful engineering with contemporary infotainment solutions allows drivers and passengers improved practicality, entertainment possibilities, and convenience, further contributing significantly to rewarding daily interaction and extended journey enjoyment alike.
Thoughtfully selected infotainment and connected technology bring meaningfully expanded enjoyment to both its driver and occupants. Supplementary carefully curated aftermarket enhancements, giving modern multimedia connectivity, capable navigation assistance, and safety-oriented features, harmonize effortlessly into everyday usage, enriching the experiences brought forward by the GL-Class thoughtfully and reliably.
In exploring the distinguished heritage, performance credentials, thoughtful engineering diligence, and continued potential of technological integrations through sophisticated aftermarket infotainment provisions, the Mercedes-Benz GL 350 clearly represents not just capable transportation, but a testament to automotive luxury and ingenuity, affirming its continued relevance and desirability as a remarkable driving and ownership experience.