2013-2016 Lincoln MKZ Hood: Fighting Aluminum Corrosion and Ensuring a Perfect Fit

Known Issues, TSBs, and Recalls

Widespread Aluminum Corrosion (Paint Bubbling)

The most significant known issue for the 2013-2016 Lincoln MKZ hood is corrosion of the aluminum panel, which appears as bubbling or peeling paint. This problem is well-documented by Ford in Technical Service Bulletin (TSB) 19-2026, which applies to numerous Ford and Lincoln vehicles with aluminum body panels, including the MKZ.

The corrosion is often caused by iron contamination during the manufacturing process or by failing seam sealer along the folded edges of the hood. Moisture gets trapped and reacts with the iron particles, causing the aluminum to corrode underneath the paint. This typically starts on the front leading edge or along the seams on the underside. The result is a blistering or bubbling effect on the paint surface, sometimes accompanied by a white, dusty residue. Because aluminum does not rust through like steel, the warranty terms regarding "perforation" often did not apply, causing frustration for many owners. Ford's official recommendation for this condition is complete panel replacement, not sanding and repainting, as the corrosion is likely to return.

Hood Latch Problems

While there are no specific recalls for the hood latch on the MKZ, there were numerous recalls for faulty door latches during this same period, indicating potential issues with latch mechanisms from that era. Owners have reported issues with the hood latch sticking or the secondary safety latch being difficult to release. This can make opening the hood difficult or, in a worst-case scenario, lead to a hood that isn't securely closed.

Symptoms of a Failing or Damaged Hood

1. Bubbling or Peeling Paint

The most common symptom is the appearance of bubbles or blisters in the paint, especially on the front edge of the hood. This is a clear sign of the aluminum corrosion issue described above. If left untreated, the paint will eventually peel away, exposing the corroded aluminum underneath.

2. Hood is Difficult to Open or Close

If you pull the interior hood release and the hood doesn't pop up, or if the secondary latch under the hood is stuck, the latch mechanism or cable may be failing. Conversely, if the hood doesn't latch firmly with a solid 'click', the striker may be out of alignment or the latch could be worn. This is a serious safety issue.

3. Hood Flutters at High Speeds

A hood that visibly shakes or flutters while driving, particularly at highway speeds, is a critical warning sign. This indicates that it is not securely latched or that the panel is misaligned. This could be caused by a faulty latch or previous accident damage that prevents a secure fit. This should be addressed immediately, as the hood could fly open while driving.

4. Poor Panel Gaps

The spacing between the hood and the fenders or front bumper should be tight and even on both sides. Wide or uneven gaps suggest the hood is misaligned or has been replaced incorrectly after an accident. This can also be a sign of a cheap aftermarket hood that doesn't fit properly.

Buying a Used Hood: What to Check

A used OEM hood is often the best value, providing factory-grade fit and material quality. However, careful inspection is crucial to avoid buying a part with hidden problems.

Key Inspection Points:

• Check for Corrosion: This is the most important check. Carefully examine the front lip and all edges for any signs of paint bubbling. Flip the hood over and inspect the seams where the outer skin is folded over the inner frame. Look for cracked seam sealer or any white, powdery residue.
• Look for Prior Repairs: View the hood from a low angle against a light source to spot ripples, waves, or a dull finish that indicates body filler (Bondo) was used. A magnet will not stick to the aluminum hood, but you can tap it lightly with a knuckle; areas with body filler will sound duller than bare metal.
• Verify Straightness: Lay the hood on a flat surface to ensure it is not twisted or bent. Check all four corners to make sure they sit flat. A twisted hood will never align correctly.
• Confirm Compatibility: The correct hood fits 2013, 2014, 2015, and 2016 Lincoln MKZ models. The hood from the 2017-2020 facelift models will not fit, as the headlights and grille are a different shape.

Cost Comparison for a 2013-2016 Lincoln MKZ Hood

Replacing the hood involves the cost of the part itself, plus painting and labor. Professional painting is required to match your vehicle's color.

Installation Guide

Replacing the hood is a straightforward process but requires two people to safely lift the panel off and on without damaging the fenders or windshield.

• Difficulty: 2/5 (Easy to Moderate)
• Estimated Time: 1 hour (not including painting)
• Tools Needed: Ratchet and socket set, trim removal tool (for washer hose clips).

Step-by-Step Process:

1. Prepare: Place moving blankets or towels along the top of both fenders and the base of the windshield to prevent scratches.
2. Disconnect Accessories: Open the hood and support it. Disconnect the windshield washer fluid hose. If your hood has an insulation blanket, remove its retaining clips and transfer it to the new hood.
3. Mark Hinge Position: Use a marker to trace the outline of the hinge brackets where they bolt to the hood. This will make aligning the new hood much easier.
4. Remove Hood: With a helper supporting one side of the hood, remove the two bolts connecting the hinge to the hood on your side. Have your helper do the same on their side. Carefully lift the hood off the vehicle and set it aside.
5. Install New Hood: With your helper, place the new hood onto the hinges, loosely starting the bolts.
6. Align Hood: Align the hood with the marks you made earlier. Gently close it to check the panel gaps with the fenders and bumper. Adjust as needed by loosening the hinge bolts and shifting the hood. The rubber bump stops on the radiator support can also be twisted up or down to adjust the front height.
7. Finalize: Once aligned, tighten the hinge bolts to spec. Reconnect the washer fluid hose and install the insulation blanket.

Frequently Asked Questions (FAQ)