Genesis G70 Undercoating Review — Enhanced Quietness
Service Price
$75–115
Estimated price · Actual price may vary by shop
Before
After
Process photos
Genesis G70 soundproofing service focusing on the sunroof, A/B/C pillars. Enhanced quietness achieved through vibration damping and sound absorption.
Genesis G70: Addressing Unwanted Noise
While the Genesis G70 is recognized as a premium sedan, many owners report issues with noises originating from the sunroof area. This often manifests as wind noise and vibrations from the roof during high-speed driving, which can intrude into the cabin. The G70's roof structure, with its dense arrangement of equipment and mounting bolts, can amplify these vibrations if not properly managed. This review details a comprehensive soundproofing service that extends beyond the headliner to include the A, B, and C pillars, significantly enhancing the vehicle's quietness.
A notable case involved an owner who had previously undergone similar services at two different shops. Upon disassembly, it was discovered that mounting clips were broken and various areas were damaged, exacerbating the original noise issues. This highlights the importance of precise and careful installation.
Precision Disassembly and Preparation
Automotive headliner components are susceptible to damage during removal, with plastic clips often breaking and screw threads stripping. To prevent this, it's crucial to have spare fasteners readily available. In this service, any damaged clips were immediately replaced with new ones, preventing further issues and ensuring a factory-like reassembly. The initial step involves carefully removing the headliner to expose the G70's underlying structure, revealing the sunroof frame, bolts, wiring, and various components. Any loose screws or improperly tightened bolts can cause resonance and convert minor vibrations into audible noise. Therefore, ensuring all fasteners are correctly torqued is a critical first step.
Dual-Layer Soundproofing System
For the Genesis G70, a multi-stage approach is most effective. Sound deadening material absorbs sound energy, but it's essential to first address the vibrations that cause the noise. This service prioritizes the application of a vibration-damping material (sound deadener) directly onto the metal surfaces. The thickness and material composition are carefully selected, and a roller is used to ensure maximum adhesion, thereby reducing vibrations before they can be transmitted into the cabin. For the G70's expansive roof area, a minimum thickness of 5mm for the damping material is recommended.
Multi-Layered Sound Absorption for the Headliner
The underside of the headliner is treated with a specialized sound-absorbing material, such as Thinsulate. This material is designed for automotive headliners, providing effective soundproofing without interfering with the headliner's components, like buttons or sunroof mechanisms. Special attention is paid to applying the sound-absorbing material around the mounting clip locations to prevent friction noise where the frame meets the trim. To ensure the integrity of the safety system, the installation process carefully avoids interfering with the seatbelt mechanisms.
A, B, and C Pillar Soundproofing
As requested, the A, B, and C pillars were also treated. These structural components connect the roof to the doors and are significant pathways for external noise to enter the cabin. Applying sound-damping and absorption materials to these pillars further enhances the overall quietness of the Genesis G70, creating a more serene driving experience.
Frequently Asked Questions
Q. How much does Undercoating cost for a Genesis G70?
The specific undercoating service detailed in this review, focusing on soundproofing the roof and pillars, cost approximately ₩700,000 (Korean Won). Typical professional undercoating services in the US can range from $150 to $1,000 depending on the type and coverage.
Q. How long does Undercoating last on a Genesis G70?
The longevity of undercoating depends on the material used and environmental exposure, but professionally applied soundproofing treatments can last for many years. Regular checks for wear or damage, especially after harsh weather conditions, are recommended.
Q. Is Undercoating worth it for a Genesis G70?
Undercoating, particularly soundproofing treatments like the one described, is highly beneficial for Genesis G70 owners experiencing noise issues, especially from the sunroof area. It significantly enhances cabin comfort and the premium driving experience.
Q. How is Undercoating done on a Genesis G70?
The process involves: 1. Careful disassembly of the headliner and pillar trims, replacing any damaged clips. 2. Applying a vibration-damping material to metal surfaces, followed by a sound-absorbing material to the trim components. 3. Reassembly of all parts, ensuring proper fitment and no interference with vehicle systems.
Q. What is the best Undercoating option for a Genesis G70?
The most effective option for a Genesis G70 experiencing noise issues is a multi-layer soundproofing approach combining vibration damping and sound absorption, particularly targeting the roof and pillars. This goes beyond basic undercoating to address specific noise sources.
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