···
Log in / Register

Why does the Mercedes-Benz GLC experience severe jerking during braking and deceleration?

4 Answers
GrahamDella
09/03/2025, 04:38 AM

The reason for the severe jerking during braking and deceleration in the Mercedes-Benz GLC is due to sudden acceleration or releasing the throttle. The solutions to address the jerking during braking and deceleration in the Mercedes-Benz GLC are as follows: 1. Gradually decelerate to allow the transmission time to buffer. 2. Visit a repair shop to have professional technicians inspect the vehicle. An introduction to braking distance is as follows: A vehicle's braking primarily depends on the friction between the tires and the ground, with the magnitude of friction determined by the coefficient of friction. Assuming the coefficient of friction is μ, the braking distance S=V*V/2μ(g=9.8m/S2), indicating that the braking distance is directly proportional to the square of the speed and inversely proportional to the coefficient of friction. When the coefficient of friction remains constant, the braking distance depends on the speed. If the speed doubles, the braking distance will increase fourfold.

Was this review help?
18
5
Share
Herb
09/15/2025, 11:08 PM

I've been driving my Mercedes-Benz GLC for over two years now, and I've also experienced jerky braking deceleration, which is quite annoying. There could be several possible reasons: first, issues with the braking system, such as uneven brake discs or calipers not gripping tightly, causing the car to jerk during deceleration. Second, problems with the transmission, especially when the automatic transmission shifts gears roughly, which could be due to software bugs or aging components. Third, issues with the suspension or tires, like worn-out shock absorbers or unbalanced wheels, affecting smooth deceleration. I recommend first checking the brake pad thickness yourself—if they're too thin, it's time to replace them, or take it to a 4S shop for a diagnostic scan. During regular maintenance, pay attention to cleaning the braking components, and avoiding sudden braking can prevent many issues. While driving, note at what speed range the jerking occurs—if it's more noticeable at low speeds, it's likely transmission-related; at high speeds, it's more likely brake-related. In any case, don't ignore this issue; address it promptly to ensure safety, as neglecting it can increase wear and affect the vehicle's lifespan.

Was this review help?
17
2
Share
Expand All
LeEleanor
10/29/2025, 11:42 PM

As an ordinary person who has driven various cars, I find the brake jerkiness in the Mercedes-Benz GLC quite common. Possible reasons include the ABS system being overly aggressive, causing sudden vibrations when it intervenes during deceleration, or insufficient/contaminated brake fluid leading to unstable hydraulic pressure. The transmission is also a key factor – Mercedes' automatic transmission sometimes hesitates during low-gear shifts, creating jerkiness. From personal experience, driving habits like frequent hard braking or overloading can worsen the issue. I usually start by checking if tire pressure is normal, as unbalanced tires amplify vibrations. If a software update is needed, visiting the dealer for an ECU reprogramming can help. Safety first – don't delay if abnormalities appear; have a reliable repair shop conduct comprehensive diagnostics to prevent higher maintenance costs later. Incidentally, regular oil changes benefit the transmission through simple maintenance. Stay calm, test potential causes step by step, and don't let this minor issue spoil the driving pleasure.

Was this review help?
16
0
Share
Expand All
Charles
12/12/2025, 10:49 PM

When I commute in my GLC, I often experience jerky deceleration, which feels uncomfortable. Common causes could be uneven wear of brake pads or disc deformation, leading to body shaking; it might also be the ESP (Electronic Stability Program) intervening, especially on slippery roads. Aging or insufficient transmission fluid can worsen gear shifting hesitation. It's recommended to start with simple checks, such as whether the brake fluid level meets the standard or if the tires are excessively worn. Visiting a 4S shop to use diagnostic tools to check for error codes can precisely locate the issue. When changing the engine oil yourself, pay attention to checking the tightness of suspension nuts to save some money and ensure safety.

Was this review help?
4
5
Share
Expand All
More Forum Discussions

What are the reasons for the diesel engine's inability to increase speed?

Diesel engine speed cannot be increased for the following reasons: whether the load is too heavy. If gasoline is mixed into the diesel, the speed also cannot be increased. Additional information: 1. Diesel engine speed: Diesel engine speeds are generally not high, mostly not exceeding 4000 RPM, commonly below 3000 RPM, with the economical speed usually around 1500 RPM. 2. Diesel engine structure: The structure is generally designed for low speeds with piston strokes greater than the cylinder diameter. Increasing the speed is actually quite simple. Since diesel engine control is 'quality' control without a throttle, the amount of air entering the engine is basically fixed. Just inject more fuel to increase the engine speed. However, if the speed is too high, the diesel in the cylinder does not have enough time to fully atomize and mix with the air, forming an extremely uneven combustible mixture. This leads to uneven distribution of flame centers during combustion, causing the diesel engine to operate roughly.
7
0
Share

Can the outer shell of a motor vehicle driver's license be replaced?

Driver's licenses can have their outer shells replaced. The essential parts of a driver's license are the main card and the supplementary card. The choice of how to store them is flexible; even without an outer shell, it doesn't matter. License Holder: The outer shell of a motor vehicle driver's license is simply the protective case for the license. The holder only serves a protective function, and drivers can replace the outer shell of their driver's license on their own. Main Page: The front of the main page contains the endorsed core information, while the back features the motor vehicle photo, both laminated in a plastic sleeve. The main card records unchangeable information such as the driver's name, address, license number, permitted vehicle types, and initial issuance date. It is uniformly produced by the traffic management authorities and cannot be altered. Supplementary Page: The supplementary page is also an endorsed core document. It records the driver's license file number and provides reminder information, such as the probationary period, next annual review, and renewal date. It is uniformly issued by the traffic management authorities and cannot be modified.
1
3
Share

Does Honda SUV have seven-seater models?

Honda SUVs do not have seven-seater models. All SUVs under Honda are five-seaters, with the largest being the Avancier. The Avancier and UR-V are sister models, sharing the same engine and transmission, and their exterior and interior designs are almost identical. The Avancier is equipped with two engines: one is a 1.5-liter turbocharged engine, and the other is a 2.0-liter turbocharged engine. The 1.5-liter turbocharged engine has a maximum power of 142 kW, a maximum torque of 243 Nm, a maximum power speed of 5600 rpm, and a maximum torque speed ranging from 2000 to 5000 rpm. It features VTEC technology and direct fuel injection, with an aluminum alloy cylinder head and block. The 2.0-liter turbocharged engine has a maximum power of 200 kW, a maximum torque of 370 Nm, a maximum power speed of 6500 rpm, and a maximum torque speed ranging from 2250 to 4500 rpm. This engine also features VTEC technology and direct fuel injection, with an aluminum alloy cylinder head and block.
11
2
Share

What Causes the Emergency Brake Assist System to Malfunction?

Reasons for brake assist system failure include insufficient brake fluid, air in the brake system, excessive free travel of the brake pedal or excessive brake clearance, poor contact of the brake shoe friction plate, severe wear or oil contamination, and clogged brake system pipelines. The following are specific introductions about the brake system: 1. The brake system refers to a series of specialized devices that can forcibly reduce the speed of a car. 2. The brake system is mainly composed of four parts: the energy supply device, control device, transmission device, and brake. 3. The main functions of the brake system are to decelerate or even stop a moving car, maintain a stable speed for a car going downhill, and keep a parked car stationary. Due to different vehicle designs and braking methods, brake system failures can be caused by various reasons. 4. Symptoms of brake failure include: brake failure; abnormal noise during braking; effective distance becoming longer or shorter; braking deviation or tail flick; intermittent braking; changes in braking stroke, such as becoming longer or harder; vibration during braking; and other abnormal phenomena.
2
2
Share

What are the symptoms of a faulty car PCV valve?

PCV valve damage can cause phenomena such as white smoke emitting from the exhaust pipe, accelerated wear, and unstable idle. In severe cases, it can lead to engine idle shaking, weak acceleration, excessive oil consumption, difficulty starting the car, and ultimately shortening the engine's lifespan. Here is some extended information: 1. PCV valve: The PCV valve is a metering control valve installed between the crankcase ventilation system and the intake system. The PCV is controlled by vacuum, regulating the flow of oil fumes from the crankcase ventilation system into the intake system. The flow rate is higher when the engine is running at high speed compared to low speed. Additionally, the PCV valve should cut off ventilation to prevent crankcase explosion when engine backfire occurs. 2. Judgment method: With the engine idling, clamp the pipeline between the PCV valve and the vacuum source. If the engine speed drops by 50r/min or more, it is normal. Otherwise, check if the PCV valve and pipeline are blocked. Also, pull out the PCV valve and feel if there is strong vacuum suction at the intake port, which indicates normal operation.
16
2
Share

Which direction to turn the steering wheel for a left turn?

To turn left, the steering wheel should be turned to the left. Use your left hand to apply force and turn the steering wheel to the left, while your right hand assists in pushing it leftward. After completing the turn, use your right hand to apply force and turn the steering wheel to the right to align the vehicle's direction straight ahead. Below is some related information: 1. Introduction: The steering wheel is a wheel-shaped device used to control the direction of cars, ships, airplanes, etc. It mainly consists of a frame, foam, and corresponding installation clips or screw holes for the driver's airbag (DAB). 2. Function: The steering wheel is generally connected to the steering shaft via splines. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque, which is then transmitted to the steering shaft. Using a larger-diameter steering wheel reduces the amount of force the driver needs to apply. The steering intermediate shaft serves as a connecting component between the steering gear and the steering shaft, facilitating the standardization of the steering gear, compensating for errors during manufacturing and installation, and ensuring a more rational installation of the steering gear and steering wheel in the vehicle.
17
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.