Q: My acceleration is very poor

asked by on September 29, 2016

I have problem with my acceleration mostly,if I will get the gas unless I pump the accelerator many times before the my Benz e220 can accelerate proper

My car has 247343 miles.
My car has an automatic transmission.

This can happen for a variety of reasons, however what is most commonly associated with the symptoms you describe is a faulty throttle position sensor.

This is a unit that monitors the position of your foot on the gas pedal and relays this information to the car’s computer which then directs the fuel injection system to supply more or less fuel.

When this is not working properly, this can cause the car to hesitate or not accelerate very well as you describe. I would recommend having an expert from YourMechanic come to your home to diagnose your acceleration issue firsthand and help you repair it as necessary.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I reset the factory settings?
When the system reset is used, then your cars adjustable settings will be returned to the factory settings. To perform this command, follow these steps: 1. Press the Up/Down buttons on the steering wheel until Settings is displayed, then press...
Chattering noises coming from transmission
Hello. From the symptoms you've described it would appear to me that there may be an issue with the clutch disc or perhaps flywheel. If the contact surfaces of either are excessively worn it may cause intermittent chatter, as you...
The car pulls to the right upon deceleration
Hi. It should be a fairly simple cause. I suggest checking your tires for uneven wear because that is the number one cause of pulling next to an alignment being out up specifications. So have the alignment checked (https://www.yourmechanic.com/article/how-to-know-if-you-need-a-wheel-alignment-by-robert-tomashek) as...
Car cranks but no start or spark
From what you've described, you may have a bad crankshaft sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement). You'll know if this is the case once you run a scan test to get sensor data. The sensor may not be sending a crankshaft signal to the...
My transmission is stuck on reverse but my shifter is on park. Can't move shifter at all.
Hi, thanks for your question. I'd be happy to offer my insight. I suggest checking the transmission shift cable connection at the transmission to see if the cable came loose from a defective cable end bushing. If you would like...
Leak at the top of the pinion gear. Not much, can smell the burning fluid. Use Lucas oil or replace the whole rack.
I would replace the whole rack and pinion. You could try a rebuild kit if you want but as a technician I would suggest getting a new one. If you would like to verify the cause of the leak before...
I have a severe engine coolant leak
Hello, the overheating issue needs to be fix as soon as possible, the vehicle should not be operated or you can damage the engine. An overall inspection of coolant system components needs to be done. Some visuals may have to...
Fuel is leaking and Check Engine Light is on - 2008 Mazda 3
The fuel pump is contained within the tank and so cannot leak. You are probably seeing fuel leaking from a fuel line and/or from the fuel tank itself. There could be a loose fuel line fitting, impact damage (debris from...
Auto transmission is not going into overdrive.
Hi there. The transmission may have burnt clutches in the overdrive clutch pack. The solenoids for this transmission would not go out without effecting more gears. Check the fluid to the transmission and see if it is dark red or...

Related articles

A Buyer’s Guide to the 2012 Mercedes-Benz CL-Class
Think Think of the 2012 Mercedes-Benz CL-Class as the two-door cousin of the S-Class lineup. Each vehicle in this class is a stylish, sexy coupe. What’s more – they all manage to combine incredible performance with svelte styling. They might...
How to Replace a Speed Timing Sensor
Some signs of a failed speed timing sensor include a Check Engine Light and poor performance. It's also known as the crankshaft position sensor.
How to Replace the Oil Temperature Sensor on Most Cars
Oil, as well as the oil temperature sensor, is crucial to the engine lubrication system. A bad sensor can lead to leaks and poor vehicle performance.