Crossover owners Nissan Qashqai second generations are often faced with the need for additional body protection. Particularly vulnerable areas are the lower parts of the doors, which are constantly exposed to road salt, moisture and abrasive particles. Installation of quality thresholds solves this problem by extending the life of the paintwork and improving the appearance of the car.
The accessory market offers many solutions, from simple plastic covers to complex illuminated metal structures. Choosing the right option depends not only on aesthetics, but also on operating conditions. Owners of city crossovers will benefit from lightweight models, while off-road trips will require reinforced products that can withstand heavy loads.
Why are additional thresholds needed on the Qashqai J11
The main function of additional elements is to protect the standard body from mechanical damage. When boarding and disembarking, passengers often step on the edge of the door, leaving marks of dirt and scratches. This is especially true in winter, when shoes are covered with snow and reagents.
The added protection also prevents dirt from getting into the doorways. Without protective pads, dirt accumulates on the inside of the threshold, which over time leads to corrosion of the metal. Load-bearing thresholds help maintain structural integrity, especially if you often drive on unpaved roads.
In addition to utilitarian benefits, such accessories change the visual perception of the crossover. Wide overlays visually make Nissan Qashqai more massive and aggressive. Correctly selected color and texture fit harmoniously into the overall design of the car, emphasizing its status.
Types of materials and designs
There are two main types of threshold materials on the market: plastic and metal. Plastic linings are lightweight, do not corrode and are cheaper than their metal counterparts. They are great for use in urban environments where extreme loads do not occur.
Metal thresholds made of aluminum or stainless steel provide maximum durability. They can serve as additional support when entering the cabin, especially if the car is loaded. However, metal is heavier and requires high-quality anti-corrosion treatment, otherwise it may begin to rust.
- 🛡️ Aluminum - lightweight and corrosion-resistant material, often has a matte texture.
- ⚙️ Stainless steel - maximum strength, but requires care to maintain shine.
- 🧱 Impact resistant plastic - does not rust, but may crack if subjected to a strong impact.
The choice of material directly affects the durability and price of the product. If you plan to use the car mainly in the city, plastic will be the optimal solution. For active recreation and frequent trips into nature, it is better to consider metal options.
- Plastic invoices
- Metal carriers
- Backlit
- Standard ones in body color
Features of installation of overhead thresholds
Installing overhead thresholds is a process that requires accuracy and adherence to technology. Before starting work, it is necessary to carefully prepare the surface of the body. Dirt, dust and traces of bitumen must be completely removed, otherwise the adhesive will not provide reliable adhesion.
Use an alcohol-based degreaser on the adhesive area. Apply the mixture to a lint-free cloth and wipe the surface of the door and the lower part of the body. Let the surface dry for a few minutes. This is a critical step for the longevity of the fastener.
Many manufacturers complete the linings with double-sided tape based on polyurethane foam. Before gluing, remove the protective film and carefully attach the element to the body. Do not press the entire surface at once, fix the edges first to avoid distortions.
☑️ Preparation for installation
Installation of load-bearing metal thresholds
Installing load-bearing sills is a more complex procedure that requires drilling into the body. First you need to mark the attachment points using the template included in the kit. Be sure to check the symmetry on both sides of the car before starting drilling.
Use a drill with a metal drill bit set. Start with a thin drill bit to create pilot holes, then gradually increase the diameter. After drilling, be sure to treat the edges of the holes with an anti-corrosion compound to prevent rusting.
Fastening is carried out using bolts and nuts. It is recommended to use spring washers to prevent the bolts from unscrewing due to vibrations. Tighten the fasteners evenly, without overtightening, so as not to deform the metal of the threshold or body.
⚠️ Attention: When drilling holes in the body Nissan Qashqai J11 Be extremely careful not to damage the wiring insulation or suspension elements located inside the arch.
Comparison table of characteristics
For clarity, let’s compare the main parameters of different types of thresholds. This table will help you quickly navigate the variety of offers and choose the appropriate option for your needs.
| Threshold type | Material | Installation | Corrosion protection | Price |
|---|---|---|---|---|
| Overhead plastic | ABS plastic | On tape | High | Low |
| Overlay aluminum | Aluminum | On tape/bolts | Average | Average |
| Load-bearing steel | Steel | Drilling | Requires care | High |
| Original Nissan | Composite/metal | Factory | Maximum | Very high |
Please note that original accessories from Nissan usually have ideal geometry and special fastenings that do not require modification. However, their cost is significantly higher than analogues from third-party manufacturers. Composite materials often combine the strength of metal and the lightness of plastic.
Corrosion protection and care
Even the best quality thresholds require regular maintenance. In winter, it is important to wash your car frequently, washing off reagents that have an aggressive effect on metal and plastic. Pay special attention to mounting points where dirt may accumulate.
For metal thresholds, use special polishes that create a protective layer. This will not only improve the appearance, but also prevent rust. Plastic elements can be treated with color restoration compounds so that they do not fade in the sun.
If you notice chipped paint or damage to the protective layer, treat the area immediately. Ignoring minor damage to the sills can lead to the rapid spread of corrosion in hard-to-reach areas of the body. Use automotive enamel to match the body for local repairs.
Backlight and additional options
Modern car owners are increasingly choosing thresholds with integrated lighting. It is not only stylish, but also functional. The light helps to see the threshold in the dark, making it easier to get in and out, and also warns pedestrians about the dimensions of the car.
There are two main types of backlight connections: to side lights or to door contacts. The first option provides a constant glow when the light is turned on, the second - only when the door is opened. The choice depends on your preferences and wiring diagram.
- 💡 LED backlight — bright, energy-efficient light with a long service life.
- 🔋 Self-powered — batteries inside the threshold, do not require complex wiring.
- 🔌 Connection to CAN bus - complex integration, but maximum reliability and functionality.
When installing the backlight, it is important to observe polarity and use high-quality wires. Incorrect connection can lead to a short circuit or failure of the vehicle's electronic components. If you are not confident in your abilities, it is better to entrust this work to professionals.
Common mistakes when choosing and installing
One of the most common mistakes is purchasing universal thresholds instead of specialized ones. Nissan Qashqai J11. Universal models often have incorrect geometry, which leads to gaps, misalignments and poor fit. This not only spoils the appearance, but also reduces the protective properties.
The second mistake is saving on fastening materials. Cheap tape or low-quality bolts quickly fail, especially under conditions of temperature changes. Always use the fastener kit recommended by the manufacturer or high-quality alternatives.
Don't forget about surface preparation. Skipping the degreasing step or insufficient cleaning of dirt often leads to the threshold falling off after a few weeks of use. Take the time to prepare well and you will be pleased with the results.
⚠️ Attention: Do not use aggressive chemicals to clean thresholds, as they can corrode the glue or damage the paintwork of the threshold itself.
FAQ: Frequently asked questions
Below are answers to the most popular questions from owners. Nissan Qashqai J11regarding thresholds and their installation.
Is it possible to install thresholds on a new car?
Yes, installing thresholds on a new car is even recommended, as this prevents scratches and chips from the first days of operation. The main thing is to make sure that the body is clean and free of grease before installation.
How long does it take to install overhead thresholds?
If you have the necessary tools and a careful approach, installing overhead thresholds takes from 30 to 60 minutes on all four sides. Load-bearing thresholds require more time - from 2 to 4 hours due to the need for drilling and painting.
Do thresholds affect the car's ground clearance?
Yes, installing load-bearing sills can slightly reduce ground clearance, since they are mounted below the standard level. Overhead sills have virtually no effect on ground clearance, as they are mounted flush with the body.
What to do if the threshold starts to peel off?
It is necessary to carefully remove the trim, remove any remaining old tape and dirt from the body and the part itself. Then treat the surfaces with a degreaser and stick with new high-quality double-sided tape, pressing and allowing time for polymerization.