BMW e36 Double Wishbone

Suspension systems are made in different engineering forms that create different capabilities and applications. In other articles available on the site, we reviewed the MacPherson suspension and Multi-Link Suspension System that BMW uses for its products. If you are interested and gain knowledge about them, you can increase your information about them by referring to the articles section of the BestGermanCar blog.

But the double wishbone suspension system is one of the most famous suspension systems. It was presented by Citroen on its cars about a century ago. This system is exclusively designed to be placed on the front axle of the car and consists of two sternum bones that are in the shape of an arm. A shock absorber is placed between these two arms, which is connected to the car chassis from above.

In fact, the connections related to the spiral shock absorber connect these two arms to the body. In the design of such systems, they try to consider the distance between these two arms more precisely. This distance can reduce the impact of the chassis and help the car to be better controlled.

Double Wishbone Suspension ; How it works ?

Although the double wishbone system was not released after the release of MacPherson, so it cannot be considered a type of suspension system that covers the weaknesses of MacPherson or Multi-Link, but its special geometric shape allows it to help improve handling with a wider opening and radius Car traffic will decrease.

In this suspension system, due to the length of the upper arm compared to the lower arms, during rotation, it causes parallel wheels to have opposite camber, so that the wheel that is close to the direction of rotation has positive camber and the other wheel that is parallel The wheel turns negative. In this condition, the turning radius is reduced and the work of maintaining the car’s balance is done better. For this reason, the use of double wishbone suspension is very common in racing cars.

In addition to better control over the camber, the double stern provides more freedom with better control over the caster and roll section. In addition to the beautiful design of this suspension system, it makes it softer and creates a more comfortable feeling on bumpy roads.

Double Wishbone Suspension Positive Points

To examine the advantages of the double wishbone suspension system, it should be placed next to the basic features of the MacPherson system in order to understand the facts of its performance.

With a special look at all modern cars, you can see that most of them use MacPherson suspension system. But the common use of this suspension system does not indicate superiority. BMW 3 and 5 series, Porsche GT3 and GT3 RS, Audi A6, A4, A8 models, Mercedes Benz C, E, S class, Lexus LS and GS, Nissan GT-R are famous cars that They use a double wishbone suspension system.

1. Better preservation of tires when connecting to the road surface, especially when turning in corners and preventing the car from drifting
2. Favorable handling and better feeling of comfort and smoothness in steering wheel control
3. Better performance on bumpy and rough roads with better shock absorption to the car chassis

Double Wishbone Suspension Negative Points

Despite the advantages and positive points of the double wishbone suspension system, this system has flaws that do not allow us to see it in all cars. Maybe knowing these negative points will help us to better know which is the right suspension system for a car.

cons :

1. The distance between the arms requires considering a larger space in the design of the suspension system. This larger distance brings with it many challenges.
2. The heavier weight of the double-wishbone suspension system compared to the MacPherson system ultimately creates a weight difference that can affect the car’s performance and fuel consumption.
3. The complexity of designing double wishbone suspension systems can be challenging for designers and manufacturers, but its complexity creates the biggest challenge for its maintenance. In the sense that its maintenance cost can be considered more.
4. Compared to the MacPherson suspension system, the implementation of the double wishbone suspension system costs more, so it can be a weakness for cars that have a competitive market because they increase the final price of the product.
5. Repairs require higher expertise and skill to perform. Therefore, the repair work requires supervision and precise engineering settings, which not all mechanics can handle.

BMW Double Wishbone Suspension

BMW’s innovations have always been famous as one of the pioneers of the automobile industry. The design of the suspension systems of German cars are largely similar, with the difference that BMW never stops optimizing different suspension systems in its cars. Perhaps one of the most important complaints of car repairers is that it is more difficult to repair German cars compared to an American car. However, BMW engineers only think about improving the suspension system for a better driving experience and handling.

For example, in the better optimization of the double wishbone suspension system, by optimizing the basic geometry angles between the arms, German engineers try to divide the amount of axial load on each arm as much as possible in such a way that it is completely restrained by the shock absorber connected to the upper sternum. . At the same time, better optimization of the double wishbone suspension system helps in better performance and better adhesion.

Cars with Double Wishbone Suspension

Basically, sports and racing cars that need a lot of advanced handling have a greater need for a double wishbone system. In the list of cars that use this system, we can see that most of these cars are equipped with reinforced and powerful engines that can easily deviate from the road when turning and twisting the road.

Among the most important cars that use double wishbone suspension system, the following can be mentioned:

Porsche 911 GT3 , Porsche GT3 RS , Nissan GT-R , Ferrari GTB 480 , Lamborghini Huracan , McLaren 720S , Toyota Supra , Lexus LC , Infiniti Q70 and Q60 , Audi A8 and A6 and A4 , McLaren P1

E36 Double Wishbone Replacement

Replacing or repairing the BMW e36 Double Wishbone is not an easy task. As mentioned in this article, the full length. This system requires specialized knowledge and sufficient experience in the field of these suspension systems for repair and replacement. The most important point is not the step of replacing it, but the most important part for proper performance is the correct adjustment of the arm angles.

Replacing or repairing the BMW e36 Double Wishbone suspension system is not an easy task. As mentioned in this article, the full length. This system requires specialized knowledge and sufficient experience in the field of these suspension systems for repair and replacement. The most important point is not the step of replacing it, but the most important part for proper performance is the correct adjustment of the arm angles.

Making sure that you can use an expert for help in case of any problem, use the following instructions to replace the BMW e36 Double Wishbone:

1. First of all, to replace it if it is defective, by placing the car in a suitable place, check and make sure that the suspension system has technical defects and replacement is necessary.
2. After putting the car on the lifting jack and checking by opening the tires, provide more space for your access.
3. Make sure that the equipment provided to replace the new suspension system is obtained from the original source and has a high quality of construction. The use of fake accessories can not only have a short life and durability, but can also cause serious damage to the car chassis.
4. After turning the steering wheel enough, open the steering knuckle and ball joint from the top and bottom of the suspension system.
5. Replace the new suspension system according to the previous suspension system and tighten the screws sufficiently. (taking a photo of how the previous suspension system was connected before opening it will help you to fit the new suspension system accordingly)
6. Make sure the angles between the arms are exactly as the suspension is worn before fully tightening the bolts