2004-2008 Gallardo Radiator Support Cover: Cracks, Fitment, and Part Number Guide

What Does the Radiator Support Cover Do?

The radiator support cover on the first-generation Lamborghini Gallardo (2004-2008) is a critical component situated at the front of the vehicle, under the front hood (or 'frunk'). Its primary job is to direct airflow into the twin radiators to keep the V10 engine cool. It also serves as a structural piece that holds other parts in place and protects the top of the radiator assembly from debris. Because it's located at the very front of the car, it's one of the first parts to be damaged in even a minor frontal collision.

Common Failure Symptoms

Failure of the radiator support cover is almost always due to physical damage. There are no associated OBD codes or electronic failures. Instead, you should look for physical and audible signs.

• Visible Cracks: The most common symptom is visible cracking, especially around mounting points. Heat cycles and vibration can cause small cracks to form and spread over time.
• Broken Mounting Tabs: The plastic tabs that secure the cover to the chassis can become brittle and break, especially during removal for service. A cover with broken tabs will not sit securely.
• Rattling or Vibrating Noises: A loose or cracked support cover will often vibrate against the chassis or radiator, creating rattling noises from the front of the car, particularly at idle or over bumps.
• Poor Fitment of Adjacent Parts: A damaged or improperly installed support cover can cause misalignment of the front bumper or the front trunk liner.

Buying a Used 2004-2008 Gallardo Radiator Support Cover: A Buyer's Guide

Given the high cost of new OEM Lamborghini parts, a used radiator support cover is often a practical choice. However, careful inspection is essential to ensure you get a quality part.

Physical Inspection Checklist

Whether you're looking at photos online or inspecting a part in person, check these specific areas:

• All Mounting Points: Carefully examine every screw hole and tab. These are the most common failure points. Ensure they are intact and free of cracks. Ask for close-up photos of these areas.
• Main Body Cracks: Look for any cracks, even hairline fractures, across the main surface of the cover. While a small crack can sometimes be repaired with plastic welding or epoxy, it's a sign of previous stress or impact.
• Signs of Previous Repair: Check for evidence of glue, epoxy, or plastic welding. A properly repaired part can be serviceable, but a poor repair may fail again.
• Warping: Ensure the part is straight and not warped from heat or improper storage. A warped cover will never fit correctly.

Understanding Part Number Suffixes (A, C, E)

The OEM part numbers for this cover include 400807157, 400807157A, 400807157C, and 400807157E. These suffixes typically indicate revisions or updates to the part over its production life. While they are generally interchangeable for the 2004-2008 model years, it is always best practice to match the exact part number from your vehicle if possible. The later revisions (like 'E') are often the most robust, incorporating improvements to address issues seen in earlier versions.

Known Issues, Recalls, and Service Bulletins

There are no specific recalls or Technical Service Bulletins (TSBs) from Lamborghini that relate directly to the radiator support cover itself. However, there was a significant recall for 2004-2006 Gallardo models related to leaking power steering hoses. NHTSA campaign ID number 12V430000 was issued because fluid could leak onto a hot engine component, creating a fire risk. While this does not involve the support cover, it is a critical safety issue for owners of these model years to be aware of. Dealers were to update the power steering system free of charge.

Cost Comparison: New vs. Used

The cost for a radiator support cover can vary significantly based on the source.

Note: Prices are estimates and can vary based on supplier, part condition, and location. Labor costs are based on typical independent shop rates.

Installation Guide Overview

Replacing the radiator support cover requires removing the front bumper. While not overly complex, it requires care to avoid scratching the paint. A video guide for front bumper removal shows the process involves accessing screws inside the front trunk and wheel wells.

• Difficulty: 3 out of 5
• Estimated Time: 2-3 hours
• DIY Feasible: Yes, for an experienced DIYer with the right tools.

Simplified Step-by-Step Process

1. Open the front trunk ('frunk').
2. Remove the plastic trim liners inside the frunk to access the upper bumper bolts.
3. Remove the front wheels to gain access to the fender liners.
4. Remove the front section of the fender liners to access bolts securing the bumper to the fenders.
5. Remove several bolts on the underside of the bumper.
6. With a helper, carefully pull the bumper away from the car. Disconnect any lighting connectors before fully removing it.
7. With the bumper removed, the radiator support cover is now fully accessible. Unbolt the old cover and install the new one.
8. Reinstall the bumper, liners, and wheels in the reverse order of removal.

Frequently Asked Questions (FAQ)