Why Does My Mercedes Jerk When I Accelerate in Louisville?

People always wish for a smooth and comfortable driving experience on their long trips without any hassle. For enjoying a synchronized drive, the moving parts of the internal combustion engine that make it run smoothly.

When you drive the car down the road frequently, it will cause an annoying and scary situation that needs immediate diagnosis because in this case, you can even lose control of the car. Among the several problems in your Mercedes, the sudden jerking while you accelerate may cause due to the lack of the right mixture of air/fuel in the combustion chamber.

In general, the jerking of the vehicle during acceleration is a sign of something wrong that needs to be addressed and fixed as soon as possible to prevent further damage. The following points define the causes behind your Mercedes jerks when accelerating.

Worn spark plugs

Generally, the spark plugs in your car are igniting the right mixture of air and fuel in the combustion chamber properly at the right moment. If the spark plug is worn out or failed for any reason, then the air-fuel mixture is ignited prematurely or not performs well manner.

In this process, the engine cylinder is misfiring and causes a jerking situation during acceleration. Eventually, the bad spark plugs will cause other problems in the car such as an increase the fuel mileage, activating the check engine light, rough idling and many more.

Damaged mass airflow sensor

Like the other causes, the damaged mass air flow sensor in your car is also causing jerking when accelerating or lung forward while accelerating. Generally, the mass airflow sensor is an important component in your car that can measure the right amount of air required by the engine.

Based on the air intake, the MAF is adjusting the injectors for supplying an adequate amount of fuel to maintain an ideal air and fuel mixture in the combustion chamber. If the mass airflow sensor is damaged, then it can cause jerking when accelerating at higher speed and produce black smoke from the tailpipe with engine backfiring.

Worn-out accelerator cable

To accelerate smoothly, many old model cars have an accelerator cable which is creating a link between the throttle's plate and the gas pedal. Due to regular use, the accelerator cable of the car is worn out or damaged which can cause jerking when you accelerate.

When you will notice the worn-out accelerator cable in your Mercedes, try to repair or replace the part immediately with a professional Mercedes mechanic for preventing further damage and make it drivable.

Clogged catalytic converter

Commonly, the catalytic converter in your car is responsible for receiving the exhaust gases or emissions formed in the internal combustion chamber and then converting them into less harmful gases which are safe for the environment.

If the catalytic converter in your car is clogged with outside contaminants, then the exhaust gases cannot convert into a less harmful one that can create pressure in the engine. As a result, you will experience jerking during acceleration. Thus, the clogged catalytic converter will cause other problems in a car like clogged fuel or oil; reduce fuel mileage, and worn spark plugs.

Clogged air filter

To run the car smoothly on the road, the air intake is playing a vital role, so due to these reasons; you have to keep the air filter in the best condition. Thus, the main task of the air filter in your car is to prevent the outside dirt and debris to enter the engine.

If the filter is clogged, then it will decrease the amount of air enter into the engine for the combustion process. When it happens, you will notice that your car jerks during acceleration. So, always keep an eye on the cleanliness of the filter to prevent clogging issues and replace it if needed.

Final words

Perform the scheduled service and maintenance of the vehicle for enjoying a smooth ride and increase the drivability of the car. If you found that your Mercedes is jerking during acceleration while driving on the streets of Louisville, then bring it to a reputed local mechanic for proper diagnosis and repair. In this way, you will enjoy a safe and smooth drive during your long trip.

We at MikeJohnsImport are Louisville’s leading source for master level service and repair exclusively of BMW and Mini Cooper. We have a team of BMW and Mini Cooper experts who guarantee to get all jobs done professionally.