2021-2024 Kia K5 Windshield Molding: Avoiding the Wrong Glossy vs. Matte Finish
This guide covers the critical differences between glossy and matte windshield moldings for the 2021-2024 Kia K5, known issues, and how to choose the right used part.
- The single most important step is to verify the finish: higher trims (GT-Line, EX, GT) use glossy black, while the base LXS likely uses matte black.
- Kia issued a service action (TSB SA431) for windshield side molding issues on some 2021 K5 models, indicating a known potential for problems.
- Replacement is a very easy DIY job, requiring only a plastic trim tool and about 30 minutes. The moldings snap on and off with clips.
- When buying used, prioritize parts with no peeling on the glossy finish and confirm all mounting clips on the back are intact and undamaged.
Symptoms of a Failing Windshield Molding
When the side windshield moldings on a Kia K5 begin to fail, the symptoms are usually noticeable to the driver. Because this part's main jobs are to manage airflow and water, failure often results in auditory or visual cues.
- Increased Wind Noise: The most common symptom is a new or louder whistling, humming, or rushing air sound coming from the sides of the windshield at highway speeds. This happens when the trim lifts or warps, creating a gap that disrupts smooth airflow.
- Visible Damage or Looseness: A visual inspection may reveal that the molding is cracked, faded, or peeling. On the glossy black versions, the clear top layer can delaminate, giving it a milky or peeling appearance. You might also notice the trim is physically loose, lifted from the glass, or feels spongy to the touch.
- Rattling Sounds: A loose piece of molding can vibrate against the windshield or body, causing a rattling or buzzing noise, especially when driving over bumps or at speed.
- Water Leaks (Less Common): While the primary waterproof seal is the urethane underneath, a severely degraded or missing molding can allow excess water to channel into the windshield frame, potentially overwhelming the primary seal and leading to leaks inside the cabin. This can also lead to hidden rust forming in the windshield frame.
Known Issues, TSBs, and Recalls
While there are no active recalls for the front windshield side moldings on the 2021-2024 K5, Kia has acknowledged issues with exterior trim on this platform.
Service Action for 2021 Windshield Side Molding (SA431)
For early production 2021 Kia K5 models, Kia issued Technical Service Bulletin TSB_GEN092 (also known as Service Action SA431). This service action addressed several potential issues on new vehicles, one of which was the windshield side molding. While details of the specific defect are not public, the existence of the TSB indicates that Kia identified a potential problem with the fit or security of these moldings on some early models. Owners of 2021 models experiencing loose trim should reference this TSB when speaking with a dealer.
Context: Rear Trim Recall SC346
It is important to note that Kia issued a major safety recall (NHTSA 25V494000, Kia #SC346) for the rear C-pillar and trunk trim on 2023-2025 K5 models. This was due to a supplier quality issue where insufficient adhesive was used, causing the trim to detach while driving. While this recall does not apply to the front windshield moldings, it highlights a sensitivity with exterior trim adhesion on this vehicle platform that buyers should be aware of.
Variant Alert: Glossy vs. Matte Black Finish
One of the most critical details when buying a replacement windshield molding for a Kia K5 is the finish. This part was produced in two distinct versions:
- Glossy Black: A shiny, polished finish. This is typically found on the GT-Line, EX, and GT trim levels, which feature other gloss black exterior accents. The verified OEM part numbers for the glossy version are 86130L3100 (Left) and 86140L3100 (Right).
- Matte Black: A non-glossy, flat black finish. This is generally used on the base LXS trim level.
Before purchasing a used part, it is essential to confirm which finish your vehicle has. The two are not interchangeable from a cosmetic standpoint and will look incorrect if mismatched.
Pro Tip: The easiest way to determine your finish is to look at the molding on the opposite side of the car or other exterior trim pieces. GT-Line models, for example, have a gloss black grille and mirror caps, which would match the gloss black windshield trim.
Buying a Used Windshield Molding Set
A used OEM molding is often a better choice than a cheap aftermarket alternative because the fit, color, and finish are guaranteed to match the factory original. When shopping for a recycled part, pay close attention to the following:
- Verify the Finish: This is the most important step. Confirm with the seller whether the part is glossy or matte black. Use your vehicle's trim level (LXS, GT-Line, etc.) as a guide and compare it to the photos.
- Inspect for Peeling: For glossy black moldings, look closely at the surface in the photos. Ask the seller for close-ups if needed. Reject any parts that show signs of the clear coat peeling, flaking, or developing a hazy, delaminated appearance.
- Check for Cracks and Stress Marks: Examine the part for any cracks, especially around the ends and edges. These can worsen over time and cause wind noise.
- Confirm All Clips Are Intact: The molding attaches with a series of integrated plastic clips. A part with broken clips will not sit securely and will likely rattle or come loose. Ask the seller to confirm the condition of the backside of the trim.
Replacement Overview & Difficulty
Replacing the side windshield moldings on a 2021-2024 Kia K5 is a straightforward process that can be done by a DIYer with basic tools.
- Difficulty: 1/5 (Beginner)
- Estimated Time: 15-30 minutes
- Tools Needed: Plastic trim removal tool or a screwdriver with the tip wrapped in tape to prevent scratching.
The replacement is a simple pry-off, snap-on procedure. The old molding is carefully pried away from the windshield frame, which releases a series of clips along its length. Once the old piece is off, the area should be cleaned. The new molding is then aligned and pressed firmly into place until the clips engage with a clicking sound.
Cost of Windshield Molding Replacement (2021-2024 Kia K5)
| Part Type | Estimated Cost (for a set of two) |
|---|---|
| New OEM (Dealer/Online) | $180 - $270 |
| New Aftermarket | $50 - $150 |
| Used OEM (Recycled) | $75 - $140 |
| Shop Labor Cost | $75 - $150 |
Frequently Asked Questions
How do I know if my K5 needs the glossy or matte black molding?
Check your vehicle's trim level. The sportier GT-Line, EX, and GT trims typically use the glossy black finish to match other exterior accents like the grille and wheels. The base LXS trim usually has the matte black finish. The most reliable method is to look at the existing trim on your car.
Can I replace just one side?
Yes. The moldings are sold as separate left and right pieces. However, if one side has failed due to age and sun exposure, the other side is likely not far behind. Replacing them as a pair ensures a consistent appearance and prevents having to do the job again in the near future.
Will a bad windshield molding cause a water leak?
It's possible, but not guaranteed. The primary water seal is the urethane adhesive under the glass. However, a failing molding can channel water directly onto that seal, and if the seal itself has any imperfections, a leak can occur. A bad molding is a risk factor for future leaks and hidden rust.
Is this a difficult DIY job?
No, this is considered a beginner-level DIY task. The moldings are held on by clips and do not require special adhesives or sealants to replace. With a plastic pry tool to avoid scratching the paint, the job can be completed in under 30 minutes.
Technical Specifications
OEM Part Numbers: 86130L3100 (Left Side, Glossy Black) 86140L3100 (Right Side, Glossy Black)
Material: Plastic Finish: Available in Glossy Black or Matte Black Attachment: Integrated plastic clips
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia K5:
- 🛍️ Shop This Part
- Symptoms of a Failing Windshield Molding
- Known Issues, TSBs, and Recalls
- Service Action for 2021 Windshield Side Molding (SA431)
- Variant Alert: Glossy vs. Matte Black Finish
- Buying a Used Windshield Molding Set
- Replacement Overview & Difficulty
- Cost of Windshield Molding Replacement (2021-2024 Kia K5)
- Frequently Asked Questions
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