general problems of the 2005 Mercedes Benz E500

Car smells like gas. Constantly a couple machanic. Did some repairs. But there’s a small leak as well from a smoke test. Gas leaks in more than one area. Oil leaks everywhere. Evap leak didn’t pass smog. Then went to a smog station and repair. Check engine light back on again. I saw mercedes had an extended warranty to avoid recalling several safety complaints. I got the car from a guy who never looked into recalls or extended warranty for these complaints. Please help me to get refunded what I payed so far with repairs on gas leaks. Also to repair the whole gas system. It is dangerously ongoing. I never got notified by mercedes nor did the previous owner.

I was traveling at about 60mph and started to slow to turn off the highway. Suddenly a red brake warning light came on and it took tremendous pressure to slow the car down and I overshot the turn. Then the car had no power. I was 36 miles from my home. I limped at 5-20 mph to a friends house and had the car towed to my home. There was absolutely no warning of any kind of brake problem. The car was driving just fine before this happened. I believe it could have been a much worse situation had I been in any kind of traffic.

On three separate occasions, the engine suddenly shut off as the vehicle was decelerating to a stop. Twice it occurred as the vehicle was coming to a stop at a stoplight and once it happened as the vehicle was on an off-ramp, exiting I-95. On the first two occasions, at the stoplights, the vehicle restarted immediately. On the third occasion, on the off-ramp, the vehicle would not restart until it was allowed to cool for at least five minutes. This was particularly dangerous on the off-ramp. After the third occasion, I had the vehicle towed to a repair shop where it was determined that the "crank position sensor" was failing and needed to be replaced. The engine shutting down at any time while the car is in motion is a safety hazard. Owners should be notified that it can happen and should be urged to get it checked.

Code: 4a30 engine control module not identified or incorrect control module. Code: 54f0 can communication with control unit transmission control is sporadically disturbed. Safety issue: I recently got off the freeway, came to a stop, and then attempt to proceed normally with the vehicle now stuck in 5th (or whatever the sensor chooses) gear, and no power steering- there is a reasonable user presumption that the car would accelerate normally and be able to safely join traffic. . . . Instead it crawls forward at a few miles an hour into potential harms way with no way to accelerate the vehicle normally, thereby leaving the driver and our children in danger. I speak from personal experience, and would not wish this terror experience on our worst enemy. Mercedes montvale NJ will not participate on fixing the cause of this safety issue.

My car is E500, 2005. It is 42,333 miles but it is leaking right engine motor mount. Why does it happen? does it cause injuries or death? is it defect from mercedes-benz? does mercedes-benz need to fix without charge? please advise. Thank you.