The most important thing at this point is whether your car can perform the maneuver correctly. In the deer test, which is of great importance for vehicles, Unexpected malfunctions can occur with unexpected cars.

Agree, Even some new cars fail this test What is the reason?

For example while driving in Sweden It is very common for deer to jump onto the road. and for this reason the test in question is called the deer test.

When braking alone in traffic is not enough to prevent an accident, you can use it to avoid a collision. It is possible to encounter many situations that require maneuvering.

Of course also these sudden maneuvers The vehicle must not get out of control or roll over. The deer test serves to measure exactly this power of cars.

These tests are conducted with the passengers present and the luggage fully loaded.

The speed is usually between 64 and 80 km/h. This speed may not seem high for the deer test, but the room for maneuver is quite narrow. Moreover, this test is not a one-time test. The speed is gradually increased for each vehicle model and this test is applied again and again.

Actually the deer test; He gained worldwide popularity in 1997 with the failed test result of the Mercedes A-Class, which surprised the automotive world. The A-Class is a tall car in relation to its wheelbase This makes the center of gravity higher.

When the vehicle is full of passengers and luggage the center of gravity is higher and that is exactly why the test is carried out when the vehicle is loaded. This is the worst condition.

When the vehicle maneuvers, an outward force is created, which affects the vehicle’s center of gravity.

The higher the center of gravity is from the ground The force acting on the vehicle is also greater. In fact, this situation can be considered a kind of leverage principle.

On the other hand, although Mercedes initially ignored this problem, it later acknowledged this problem and recalled thousands of vehicles. Engineers added electronic stability control to the vehicle and by reworking the suspensions It solved the problem.

But in recent years, many popular cars, It fails the deer test due to the same problem.

During a test carried out for the first time with a Citroen Nemo in 2010, the vehicle overturned.

Again in this situation short wheelbase and high center of gravity it causes. In 2016, Toyota Hilux narrowly avoids tipping over during the deer test. Hilux is an all-terrain vehicle, but at the same time it must be suddenly maneuverable if a pedestrian passes in front of it while driving through traffic.

Because the Hilux is a pick-up vehicle, its center of gravity is higher than any other car. Moreover, this center of gravity becomes even higher when the chassis is loaded, causing the vehicle to experience unexpected maneuvers. causes a large force to actuate.

Again, the suspensions on this vehicle are also quite soft, which It causes the vehicle to lean more to the side during maneuvers.. After this issue, Toyota engineers are trying to reach an agreement on how to solve the problem.

Four months later, Toyota updates Hilux’s electronic stability control and increase the tire pressure by 0.3 bar This solves the problem and the vehicle thus successfully passes the deer test.

The vehicle subjected to the deer test in 2020 is the Toyota RAV4.

This vehicle performs very poorly in the deer test, skidding. The reason for this is ESP, an electronic control system that ensures that the vehicle does not get out of control during sudden steering movements. is that it does not sufficiently restrict the vehicle’s freedom of movement.

Mercedes is one of the first manufacturers to use ESP and is testing the first several vehicles with and without ESP to see what happens. While without ESP the vehicle seems to get out of control during maneuvering and drifting. The vehicle with ESP maneuvers stably.

Even at high speeds In a car without ESP, tipping over is almost inevitable. In short, ESP is a very important system in the field of security. That is why in 2014 every car produced in Europe had to have ESP.

In 2012, the Jeep Grand Cherokee model was tested and during the maneuver the vehicle’s tire unexpectedly burst.

Although Jeep manufacturers do not want to accept this situation, the situation for the wheels is the same in two consecutive tests. The Porsche Macan tested in 2014 has a similar problem. Porsche Macan performs surprisingly well during deer test It blocks the front wheels during maneuvering.

In the test conducted in 2020 with the hybrid Volkswagen Passat, the rear of the vehicle swayed more than expected and It becomes very difficult to pick up the vehicle. The Skoda Superb and the hybrid Mercedes C350 perform similarly.

Because these hybrid models are produced on the petrol model platform and Because the battery is added later, the weight change is different.

Moreover, the 2021 Ford Mustang Mach-e tested also fails the deer test due to its poor ESP.

One of the most surprising test results belongs to the BMW M4, although it has very good handling. Although the vehicle successfully changed direction during the test the back is blown away. Especially after this result, many people start to criticize the deer test.

“So, is there a vehicle that has been successful in this test?” If you say: The answer is Tesla Model X. Even though the vehicle is an SUV, the center of gravity is lower because the batteries are on the floor. It is much lower than that with internal combustion engines.

In this way the vehicle performs very well. In fact, the center of gravity of this model is as low as during the deer test It is almost impossible for the vehicle to roll over.

Meet the most successful car in the deer test: a Citroen Xsara family car from 1999.

Behind this success lies the vehicle’s computer-controlled active suspension system. Hydraulics in the suspension, It can change the existing hardness immediately. Citroën first used this hydraulic suspension in the Citroen DS in 1955.

During cornering, with normal suspension, the load falls on the outer wheels, while the load on the inner wheels is minimized. In the active system of Citroen Xantia The load on the wheels is balanced and thus the vehicle can remain stable during sudden maneuvers.

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