Tein FLEX Z Coilover Suspension System for Tesla Model 3 (VSGP2-C1AA3)

1. Product Overview

The Tein FLEX Z Coilover Suspension System (model VSGP2-C1AA3) is designed for the Tesla Model 3 (3L13, 2019.09+ RR Grade Standard RANGE PLUS). This system offers a balance of improved comfort and sporty performance, featuring full-length ride height adjustment and 16-level damping force adjustment. It is engineered to provide a comfortable ride while allowing for precise tuning for various driving conditions.

Key Features:

• Full-length adjustable shock absorber for independent ride height adjustment.
• 16-level simultaneous rebound and compression damping force adjustment.
• Twin-tube structure for smooth operation and enhanced ride comfort.
• Includes reinforced rubber upper mounts.
• Compatible with EDFC series for electronic damping force control (Motor Kit EDK05-12120 required).

Figure 1: Overview of Tein FLEX Z Coilover Suspension System components, including front and rear coilovers, springs, and adjustment wrenches.

2. Setup and Installation

Installation of the Tein FLEX Z Coilover Suspension System requires specialized tools and automotive knowledge. It is highly recommended that installation be performed by a qualified professional to ensure proper fitment, safety, and performance.

2.1 Vehicle Compatibility

• Vehicle: Tesla Model 3
• Model Code: 3L13
• Year: 2019.09+
• Grade: RR Grade Standard RANGE PLUS

Before installation, verify that the product part number VSGP2-C1AA3 matches your vehicle's specifications. Refer to the manufacturer's website for the most up-to-date fitment information.

2.2 Component Identification

Familiarize yourself with all components included in the kit. The system includes full-length adjustable shock absorbers, springs, and upper mounts. Specific tools for adjustment are also provided.

2.3 Upper Mounts

The system includes vehicle-specific upper mounts for straightforward installation. For front strut types, pillow ball upper mounts may be available, which often include a camber adjustment mechanism.

Figure 2: Examples of upper mounts, including reinforced rubber upper mounts and pillow ball upper mounts for strut applications. These are designed for easy, vehicle-specific installation.

2.4 EDFC Compatibility

For electronic damping force control, the EDFC series Motor Kit (part number EDK05-12120) is required. Due to the vehicle's structure, manual damping force adjustment on the rear (Rr) is challenging, making EDFC installation highly recommended for convenient adjustment.

3. Operating and Adjustment

The Tein FLEX Z system allows for precise tuning of your vehicle's ride height and damping characteristics.

3.1 Ride Height Adjustment (Full Length Adjustment)

The full-length adjustable design allows you to change the vehicle's ride height without altering the shock absorber's stroke or spring pre-load. This ensures that ride comfort is maintained even after adjusting the vehicle's stance.

Figure 3: Diagram illustrating the full-length adjustment mechanism. Ride height can be adjusted independently, ensuring the shock absorber's stroke remains consistent for optimal performance and comfort.

3.2 Damping Force Adjustment

The shock absorbers feature a 16-level simultaneous rebound and compression damping force adjustment mechanism. This allows you to fine-tune the ride feel and handling to your preference by rotating the adjustment dial.

• Adjustment Range: 16 distinct levels.
• Mechanism: Advanced needle design for a wide adjustment range.
• Effect: Each step provides a noticeable change in damping, allowing for precise customization.

Figure 4: Illustration of the damping force adjustment dial and recommended settings for various driving conditions. Adjustments can be made from 'HARD' (0) to 'SOFT' (16) to suit city driving, highway cruising, or winding roads.

3.3 Camber Adjustment

For front strut type applications equipped with pillow ball upper mounts, a camber adjustment mechanism may be included. Camber refers to the angle of the wheel relative to the road surface. Adjusting camber can optimize tire contact patch during cornering, enhancing grip and handling.

Figure 5: Explanation of camber adjustment. Negative camber, where the top of the wheel tilts inward, can improve cornering stability and grip.

4. Maintenance

Regular maintenance is crucial for the longevity and optimal performance of your Tein FLEX Z suspension system.

• Periodic Inspection: Regularly inspect all components for signs of wear, damage, or leaks. Check for loose bolts or nuts.
• Cleaning: Keep the coilovers clean, especially after driving in harsh conditions (e.g., snow, salt, dirt). Use mild soap and water, then rinse thoroughly.
• Dust Boots: Ensure dust boots are intact and free from tears to protect the shock shafts from contaminants.
• Adjustment Threads: Keep adjustment threads clean and lightly lubricated to prevent seizing and allow for smooth adjustments.

5. Troubleshooting

If you experience any issues with your Tein FLEX Z suspension, consider the following common troubleshooting steps:

• Unusual Noises: Check for loose mounting bolts, worn bushings, or components rubbing against each other. Ensure springs are seated correctly.
• Poor Ride Quality: Verify damping force settings. If too stiff, adjust towards 'SOFT'. If too soft, adjust towards 'HARD'. Ensure tire pressures are correct.
• Uneven Ride Height: Re-measure ride height at all four corners. Adjust the full-length adjustment collars as needed to achieve desired and even height.
• Leaking Shock Absorber: A leaking shock absorber indicates a seal failure and typically requires replacement or professional repair.

For persistent issues, consult with a professional automotive technician or contact Tein customer support.

6. Specifications

7. Warranty and Support

7.1 Product Warranty

The Tein FLEX Z Coilover Suspension System comes with a 3-year or 60,000 km product warranty. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects under normal use conditions.

7.2 Customer Support

For technical assistance, warranty inquiries, or replacement parts, please contact Tein customer support directly through their official website or authorized distributors. Provide your product model number (VSGP2-C1AA3) and purchase details when seeking support.