Many car owners are faced with a situation when the regular trunk or internal volume of the cabin ceases to be enough for the transportation of overall cargo. Skiing, bicycles, building materials or bulk luggage boxes require a reliable support structure. It is for such cases that it is intended. railingThis is the basis for the entire transportation system on the roof. It is not just a decorative element, but a functional necessity for an active life.
The installation process can vary significantly depending on the body type and roof design of your car. If some models already provide standard anchorages, in other cases, a more complex approach with drilling or using specific clamps will be required. It's important to understandIncorrect installation can result in damage to the body or, worse, loss of cargo at high speed.
In this article, we will discuss in detail all stages of preparation and installation, consider the necessary tools and pay special attention to security measures. You will learn how to choose the optimal system of mounts and avoid common mistakes that beginners make when they first get acquainted with roof tuning.
Selection of the type of railings and compatibility with the body
Before buying components, you need to determine the type of roof of your car. Manufacturers offer several basic design options, and there are almost no universal solutions here. The wrong choice of the type of rails can make their installation impossible or unsafe.
The most common option is systems for bare-roofwhere there are no staffing elements. In this case, rails with a clamping system are used, which cling to the doorway. Another popular type is designs for cars with standard longitudinal arcs, which often require only the installation of crossbars.
- 🚗 Railings with T-shaped profile - a classic solution that provides high strength and the ability to install various adapters for fastening cargoes.
- 🏔️ Aerodynamic arcs have a drop-shaped section, which significantly reduces noise level and air resistance on the track.
- 🔧 Integrated systems - special models designed for specific brands of cars that repeat the curves of the roof.
Particular attention should be paid to the material of manufacture. Anodized aluminum alloys are excellent at resisting corrosion, but may be less durable under extreme loads compared to steel. Steel structures are heavier but provide maximum reliability for the transport of heavy building materials.
⚠️ Before ordering a kit, be sure to check the maximum static and dynamic load on the roof of your car in the instructions for use. Exceeding these limits can lead to deformation of the body.
Tools and workplace preparation required
Quality railing It requires careful preparation. Do not start working in the cold or under the scorching sun, as this affects the elasticity of seals and ease of work with fasteners. The optimal ambient temperature is from +10 to +25 degrees Celsius.
You will need a set of tools that are usually in the garage of any car enthusiast. However, for some types of fasteners, specific devices may be needed, which are better prepared in advance so as not to interrupt the installation process.
☑️ Preparation for installation
You will need to work:
- 🧼 Degreaser - is necessary for cleaning the contact points of rubber seals and metal legs with the car body.
- 📏 Roulette or ruler - for precise positioning of the crossbars and symmetry with respect to the center of the roof.
- 🔑 Dynamometer key A critical tool to control the tightening force of bolts so as not to damage the thread or bodywork.
It is also recommended to have an assistant on hand. Even light-looking arcs are inconvenient to hold and simultaneously fix in the correct position. One person holds the structure, the second controls the gaps and tightens the fastener.
Step by step: installation on a bare roof
Mounting on the roof without regular mounting places is the most common scenario. Here it is important to act consistently so as not to scratch the paint coating and ensure the tightness of the fit.
First, you need to install rubber adapters or paws in the doorway. They should fit tightly to the metal, but do not deform the sealing rubber of the door. Then they will be placed on the sleeves themselves.
- Unpack the kit and spread the parts on a soft surface so as not to damage the arc covering.
- Install front and rear supports on the roof, having previously set the approximate distance between them according to the instructions.
- Use the roulette to measure the distance from the edges of the roof to the supports on both sides – it should be absolutely the same.
- Tighten the locking screws of the paws, but do not apply maximum force for the moment to be able to adjust.
Nuances of working with plastic stubs
If plastic stubs are installed at the ends of the arcs for aesthetics, they often need to be removed before installation to access the internal bolts of the mount. Do not lose them and carefully put them aside.
The final puff is made only after you are convinced of the perfect symmetry of the position. Puff moment It is usually between 3 and 5 Nm, but the exact values are always indicated in the product passport. The swelling can lead to cracks in the metal of the supports, and the underweight - to the displacement of the load.
Installation of staffing places and integrated systems
If your car is already equipped with longitudinal arcs or special mounting points under plastic plugs, the process is simplified. In the first case, you simply buy universal crossbars with the right type of grip.
For systems with Fixpoint, the process looks different. You need to carefully remove the decorative plugs on the roof. There are holes under them. To the rails are screwed special adapters-bolts that are screwed into these holes.
| Type of attachment | Difficulty | Essential tools | Risk of LCP damage |
|---|---|---|---|
| On the bare roof. | Medium | Hexagon, roulette. | Medium (scratches during installation) |
| State Points (Fixpoint) | Low. | Key torx, adapters | Low. |
| Rails (state arcs) | Low. | Key from the kit | Minimum |
| Drilling (universal) | Tall. | Drill, sealant, drill. | High (requires skills) |
When working with regular points, it is important not to lose the original stubs if you plan to shoot rails in the future. You should also monitor the purity of the thread - getting dirt or sand can make it difficult to screw bolts in.
Lubricate the thread of bolts screwed into the regular points with a small amount of copper lubricant. This will prevent the metal from boiling and will make it easy to dismantle the rails in the future.
Regulation, reliability and safety checks
After installing all the elements, the final verification stage begins. This is a critical point on which traffic safety depends. Reliability of attachment It should be absolute, especially if you plan long trips along the track.
Scroll all the bolts again with a dynamometer key. Make sure that rubber seals are not squeezed outwards and do not form folds that can collect water. Railings should not stagger or squeak when shaking their hand.
- 🔊 Noise check - after installation, make a short trial trip at a speed of 60-80 km / h. A whistle or hum may indicate an incorrect position of the arcs or a poor fit.
- 🔄 Test throttle After 50-100 km of operation, be sure to check the tightening force of the bolts, as new parts can be slightly "settled".
- 🌧️ Pressure test - if through mounts were used, pour the installation site with water from the hose and check the cabin for leaks.
⚠️ Warning: Never exceed the maximum speed specified in the baggage system instructions (usually 130 km/h). At high speeds, the aerodynamic load on the cargo and fastenings increases many times.
System care and seasonal storage
Railings are constantly exposed to aggressive environmental influences: rain, snow, reagents, ultraviolet light. To extend their service life and maintain their appearance, they need to be taken care of.
Regularly wash the arcs together with the car, paying attention to the places of contact with the body. The accumulation of dirt and salts in the gaps can lead to corrosion. Once every six months, it is recommended to lubricate the moving parts of the fixation and locking mechanisms (if any) with silicone lubrication.
If you are filming railings for the winter or during downtime, store them in a dry room. It is best to pack the arcs in a soft fabric or original box to avoid mechanical damage to the coating. Do not keep them vertically slapped against the wall – this can cause profile deformation over time.
Aluminum profiles with polymer coating do not require painting, but small scratches are better to immediately paint with a special pencil-corrector to prevent oxidation of the metal.
Frequently Asked Questions (FAQ)
Can I wash my car with automatic washing with rails installed?
Most modern systems tolerate washing well, but aggressive brushes can damage the arc covering or knock down position settings if the fixation is weak. It is recommended to use a contactless wash or to warn the operator about the presence of a luggage system.
Does the railings affect fuel consumption?
Yes, even empty arcs increase the aerodynamic drag of the car. Fuel consumption can increase by 5-10% depending on the speed of movement and the shape of the profile. Aerodynamic arcs minimize this effect.
What if the scoring starts to blow at speed?
Whistling is usually caused by air swirls. Try changing the distance between the arcs or turning them in the other direction (if the design allows). There are also special aerodynamic pads-spoilers that extinguish the noise.
How to calculate the permissible weight of the cargo?
You need to focus on two parameters: the carrying capacity of the rails themselves (specified in the passport) and the permissible load on the roof of the car (specified in the instructions of the car). The lesser of the two values is chosen. For example, if the arcs hold 100 kg, and the roof of the car - 75 kg, you can load only 75 kg.
Properly installed and selected rails expand the functionality of the car, allowing you to safely transport oversized cargo, but require regular monitoring of the condition of the fasteners.