gear shifting on 2002 Mercedes-Benz E430

when I put my car in gear the car slam into gear engine light on car wont go over 30 do u think i need to take my car to mercedes and get the car reflash

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
The loss of power and check engine light being on is the transmission/engine going into "safe" mode. Is there any Independent Mercedes repair shop near you that has a good reputation?
what makes the engine / transmission go in safe mode . if i may ask you