Rear Coil Spring Dumper Upper Isolator Pad Cover for 2017-2023 Tesla Model 3/Model Y | 1188471-00-C

1. Core Function Description

1. Suspension Vibration Isolation: Acting as a buffer between the rear coil spring and the vehicle chassis, it is made of high-elasticity rubber that absorbs over 80% of vertical vibrations (10-200Hz) generated by the coil spring when driving over bumps, potholes, or uneven roads. This minimizes vibration transmission to the chassis and cabin, significantly improving ride comfort.
2. Spring & Chassis Protection: It forms a protective barrier between the metal coil spring and the chassis mounting point, preventing direct metal-to-metal contact that causes wear, scratches, or paint damage. Additionally, it restricts lateral movement of the spring during cornering, extending the spring’s service life by 30% compared to unprotected setups.
3. Noise Reduction: Its specialized porous rubber structure dampens high-frequency "squeaking" or "clunking" noises caused by the spring rubbing against the chassis. This eliminates annoying suspension noise, which is particularly noticeable during low-speed driving on rough surfaces.

2. Specification Parameter Table

3. Fault Judgment (Signs for Replacement)

• Rear Suspension Noise: A "squeaking" or "metal-on-metal" sound from the rear when driving over bumps, potholes, or speed bumps—caused by worn, cracked, or missing pad covers that leave the spring in direct contact with the chassis.
• Visible Damage: The pad cover is cracked, torn, hardened, or completely detached; the rubber material is brittle or has significant compression set (flattened and unable to rebound)—losing its vibration isolation and protective capabilities.
• Uneven Spring Wear: The upper end of the rear coil spring shows uneven wear marks or scratches, indicating the pad cover is no longer properly cushioning or aligning the spring.
• Reduced Ride Comfort: Increased vibration is felt in the rear cabin during driving, especially on rough roads—due to degraded rubber elasticity that fails to absorb impacts.

4. Advantages of Premium Brand-Grade (vs. Generic Products)

5. Installation Details

5.1 Package Contents

• 1× Rear coil spring dumper upper isolator pad cover (1188471-00-C)
• 1× Installation guide (with diagrams showing spring and pad alignment)
• 1× Silicone lubricant packet (eases installation and extends rubber service life)

5.2 Installation Tools Required

• Jack + jack stands (to safely lift the rear of the vehicle and relieve spring tension)
• Pliers (to remove any remaining fragments of old pad covers)
• Wire brush (to clean rust, debris, or dirt from the chassis mounting point before installation)

5.3 Installation Precautions

1. Safety First: Use a jack to lift the rear of the vehicle and secure it with jack stands—never work under a vehicle supported only by a jack. This relieves tension on the rear coil springs, making pad cover installation easier.
2. Clean the Mounting Surface: Use a wire brush to remove debris, rust, or fragments of the old pad cover from the chassis mounting point—ensure the surface is clean for proper adhesion and alignment.
3. Proper Alignment: Align the pad cover’s inner diameter with the chassis mounting pin and its outer edge with the upper end of the coil spring—ensure it fits snugly without twisting or stretching.
4. Lubrication Tip: Apply a thin layer of the included silicone lubricant to the pad cover’s surface before installation to reduce friction and prevent tearing during fitting.

6. After-Sales Support

• Warranty Service: Provides a 3-year/40,000-kilometer warranty (whichever comes first). During the warranty period, if the pad cover cracks, tears, or hardens prematurely (non-human damage), a free replacement will be provided.
• Technical Assistance: A dedicated support team is available via chat or email to answer installation questions (e.g., alignment tips, spring tension relief) and troubleshoot post-installation issues.
• Compatibility Guarantee: 7-day no-reason return is supported if the pad cover is incompatible with your 2017-2023 Model 3/Model Y (provided the product is unused and in its original packaging).

7. Conversion Guidance