A sagging car body or a roll to the side when parked on a flat surface are the first signals that suspension springs have exhausted their service life and require immediate replacement. Unlike shock absorbers, these elements are often replaced in pairs or even as a set on the axle, and precise accuracy is critical here. selection of Lesjofors springs by car make, since even a minimal deviation in rigidity can disrupt the geometry of the chassis. Swedish manufacturer Lesjofors offers one of the most extensive lines on the market, but their catalog requires careful attention to detail, because the same car model can be equipped with different types of elastic elements depending on the year of manufacture and engine configuration.
An incorrectly selected part will not only lead to discomfort, but also to accelerated wear. shock absorbers and silent blocks, as well as to changes in the camber angle of the wheels. The selection process goes beyond a simple VIN search, as there are sometimes overlaps or errors in the databases, especially for vehicles with a rich list of options. You'll need to consider thread color, load class, and specific chassis modification to ensure factory handling characteristics.
In this guide, we will analyze the algorithm of actions that will allow you to avoid errors when ordering, explain how to read catalog numbers and what to look for when visually inspecting an old part before purchasing a new one. A competent approach to selection ensures that your car will regain its original stability and safety on the road.
Why is accurate selection from the Lesjofors catalog important?
Company Lesjofors is one of the largest suppliers of suspension components for automotive manufacturers' assembly lines, which means their products meet original specifications. However, when selection of springs There is often confusion regarding the car brand due to the fact that during one model year the plant could change suppliers or make design changes to suspension components. The use of universal solutions “by eye” or by the general name of the model is unacceptable, since the difference in the length or diameter of the coil can be several millimeters, which significantly affects the ground clearance.
The main difficulty lies in the variety of modifications. For example, the same Volkswagen Golf may have different springs depending on the type of engine (gasoline or diesel), the presence of all-wheel drive or the number of seats in the cabin. Catalog Lesjofors takes these nuances into account, dividing products into series based on load capacity. If you install an element with a lower stiffness class, the car will “nod” when braking, and if with a higher one, the suspension will become oak and lose traction on uneven surfaces.
⚠️ Attention: Never select springs based only on length. A visually identical part may have a different stiffness characteristic due to different metal thickness or winding pitch, which will lead to unstable behavior of the car on the track.
To make the right choice, you need to rely on technical data, and not just on external similarity. In the manufacturer's catalogs, each article corresponds to a strictly defined set of parameters, including the permissible axle load. Ignoring this data when ordering through online stores, where selection is carried out automatically by VIN, sometimes fails if the information about the replacement of components in a specific month of production is not updated in the dealer database.
How to determine the type and stiffness class of a spring
The key parameter when selection of Lesjofors springs is the stiffness class, which is indicated by color markings on the coils. This is a universal standard accepted by most European manufacturers, allowing you to quickly identify the characteristics of a part without complex measurements. The color is applied to the outside of the top coil and is sometimes duplicated on the bottom, serving as a visual indicator for mechanics and car owners.
There are several main classes, each of which corresponds to a specific load range. For example, Class A springs are often labeled yellow, Class B springs are blue, and heavy-duty versions may be labeled white or orange. It is important to understand that colors can vary depending on the manufacturer and specific model range, so relying solely on color without checking the part number is risky. Lesjofors strictly adheres to the color coding of the original to make replacement easier.
- 🔵 Blue marking: usually denotes the standard stiffness class for most conventionally equipped civilian vehicles.
- 🟡 Yellow or red marking: often indicates a reinforced version, intended for versions with powerful engines or increased payload.
- ⚪ White marking: may indicate a special edition for vehicles with all-wheel drive or optional equipment.
When removing an old spring for replacement, the first thing you need to do is fix the color of the mark. If the paint has worn off due to time and corrosion, comparing the wire diameter and number of turns with new samples in the catalog will help determine the class. It is also worth paying attention to the presence of letter designations embossed on the metal, which can duplicate the color code.
Save receipts and photos of the markings of old springs. Over time, the paint will fade, and after a few years you may forget what color the parts were installed, making re-matching difficult.
Search algorithm by VIN code and car make
The most reliable way to do selection of Lesjofors springs by car make is to use the VIN code. This 17-digit identifier contains complete information about the configuration of the machine at the time it left the assembly line. In online catalogs and at official dealers, entering the VIN code allows you to cut out unsuitable options and see exactly the part that was installed by the factory.
However, even this method requires double-checking. The databases may contain errors, or the previous owner of the vehicle may have already replaced it with non-standard items. Therefore, the algorithm of actions should be as follows: first we find the article number by VIN, then we check it with the number on the oldest spring (if it is preserved) and visual parameters. Lesjofors often indicates applicability to specific production periods in catalogs, which helps clarify the choice.
If a search by VIN is not possible, a step-by-step selection is used by make, model, year of manufacture and body type. Here it is important to indicate the engine modification as accurately as possible, since the load on the front axle directly depends on its weight. Diesel versions are typically heavier than their gasoline counterparts and require stiffer components.
☑️ Check before purchase
The table below provides examples of some popular model fits and specifications to illustrate the variety of options:
| Car make | Model | Engine type | Marking color | Note |
|---|---|---|---|---|
| Ford | Focus II | 1.6 Gasoline | Yellow | Standard version |
| Ford | Focus II | 2.0 Diesel | Green | Enhanced version |
| VW | Golf IV | 1.4 Gasoline | Red | For front wheel drive |
| Audi | A4 (B6) | 1.8 Turbo | Blue | Classic pendant |
Technical nuances and compatibility of modifications
When working with suspension Lesjofors It is important to take into account not only the main modification, but also additional options that affect the weight of the car. The presence of a panoramic roof, a third row of seats, a larger fuel tank or enhanced sound insulation adds weight that must be supported spring. In manufacturer catalogs, such versions are often separated into a separate group or have a special suffix in the article number.
Particular attention should be paid to cars with adaptive suspension or a ride height control system. Although the elastic elements themselves may be standard, their installation on electronically controlled machines requires a strict installation and calibration sequence. An error in selecting stiffness can lead to incorrect operation of the body position sensors.
⚠️ Attention: When replacing springs on cars with low ground clearance or sports tuning, it is not recommended to use lowered parts from third-party manufacturers without replacing the shock absorbers, as this reduces the rebound stroke and can lead to penetrating the suspension.
It is also worth remembering compatibility with other suspension elements. New springs create a different pretension, so old, worn ones shock absorbers may not be able to handle the updated specification. It is recommended to carry out a comprehensive diagnosis of the chassis before ordering a kit.
Impact of road surface
On roads with poor surfaces and frequent potholes, it is better to choose springs of a standard or slightly increased stiffness class to avoid frequent suspension breakdowns that destroy the body cups.
Diagnosis of faults and signs of wear
Understanding when exactly is needed selection of Lesjofors springs by car make, comes with experience in diagnosing characteristic symptoms. The first sign of metal fatigue is body sagging. If the car is parked on a level surface, but one corner is noticeably lower than the others, or the ground clearance has become less than factory, this is a direct indication of the need for replacement.
In addition to visual signs, there are audio and tactile signals. The appearance of dull knocks when passing speed bumps, body swaying after driving over a bump (when the car cannot return to its original position for a long time) indicate a loss of elastic properties. The metal of the spring breaks over time, often in the lower coils hidden by dirt, which makes the defect not obvious upon a quick inspection.
- 🔊 Extraneous noise: creaking or knocking in the area of the arches, caused by the friction of a broken coil or displacement of the spring in the cup.
- 📉 Instability: the car pulls to the side when driving in a straight line if the springs on the same axle have different degrees of wear.
- 💥 Breakouts: a characteristic knock when loading the trunk or boarding passengers, indicating that the spring has completely settled.
Regularly inspecting the condition of the coils for paint chips and corrosion helps prevent sudden failure of the part. Rust weakens the cross-section of the metal, and the spring can burst at any moment, which at high speed can lead to loss of control.
Replace springs only in pairs on the same axis. Installing a new spring next to a worn one will cause body roll and uneven load distribution, negating the effect of the repair.
Installation rules and final recommendations
Installation process for new components Lesjofors requires compliance with safety technology. Since the spring is under enormous pressure, its replacement is impossible without the use of special ties. An attempt to remove or install a part without fixing the threads may result in injury and damage to adjacent vehicle components.
Before installation, it is necessary to check the condition of the support bearings, rubber spacers and boots. These consumables often come with quality springs or are purchased separately, but ignoring them will shorten the life of the new part. Selection of springs completed successfully only when the car has been run-in and the suspension geometry has been returned to normal.
After replacement, be sure to visit a service center to adjust the wheel alignment. Even a minimal change in body height affects wheel alignment, which can cause uneven tire wear. When installed correctly, high-quality components from the Swedish brand last for many years, providing comfort and safety.
Is it possible to replace only one spring if it bursts?
Strongly not recommended. The remaining old spring has a lower height and stiffness, which will lead to the car rolling, moving to the side and rapid failure of the new part due to overload.
What should I do if the color of the new spring is different from the old one?
Check the catalog for the VIN code. The manufacturer could update the product line, and the color coding could change while maintaining the technical characteristics. The main thing is the coincidence of the article and parameters.
Do I need to do a wheel alignment after replacing the springs?
Yes, this is a mandatory procedure. Changing the body height even by a few millimeters disrupts the wheel alignment angles, which affects handling and tire wear.
How long do Lesjofors springs last?
During normal operation and the absence of constant overload, the service life ranges from 80 to 120 thousand kilometers. However, aggressive driving and bad roads can reduce this resource by half.