Q: Shifting issues during usual acceleration

asked by on August 30, 2016

I have problems with the transmission, for which I went to the dealership but they claimed everything was fine as there were no error codes appearing during diagnostics. However, while shifting, the transmission seems to be mixing gears and it gets difficult to shift to the chosen gear as if it confuses gears. This occurs during usual acceleration. What might cause this?

Hey there, thanks for writing in about your 2009 Mercedes-Benz E550. Be sure to verify that your car is not in "Limp Mode," as this will likely create the same reaction for your car. Mercedes uses this as a safety feature in order to protect internal components when something else is wrong, preventing further damage until the car can be scanned for trouble codes indicating other potential problems. If you need help having this checked, a qualified professional from YourMechanic can come to your car’s location to inspect the shifting issue to have this repaired.

Was this answer helpful?
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

Get a quote

What others are asking

Erratic shifting

Hello. It would appear that these 2 problems may perhaps need to be addressed separately. If these problems began after you replaced a sensor, then it may be possible that the problems are related to the repair. I would recommend...

Rough idle, stalls when accelerating, engine shuts down while driving with no fault codes.

Hi there. The issue is the coolant thermostat temperature sensor. The sensor is malfunctioning causing the computer (ECM) to think that the engine is either too cold or too hot and causing the fuel mixture to be off. I recommend...

Heat/AC blower turns off and on

Hi there. Check the switch for any loose wires or shorts from the blower motor switch to the ignition switch. Check the condition of the wire connections for an corrosion and see if the wires are loose on the ground....

Related articles

5 Signs Your Car Isn't Shifting Correctly
Improper shifting is a sign of car transmission problems. The solution might be simple or complex, but get it inspected to avoid expensive repairs.
How to Decide Between Manual and Automatic Transmissions
There There are a lot of decisions that have to be made when buying a new car. Everything from choosing a make, model, and trim level to deciding if upgrading the stereo is worth the extra money. One of the...
5 Signs Your Car Isn't Shifting Correctly
Improper shifting is a sign of car transmission problems. The solution might be simple or complex, but get it inspected to avoid expensive repairs.