2003 Mercedes-Benz ML500 Questions

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I am replacing the brake pressure sensor to stop the bas esp light from coming on.

I have been having lack of acceleration.. first i had all coil packs wires and spark plugs changed. New fuel pump. New crankshaft position sensor..n last my converters checked n new pipes. Nothing has changed this problem... drive for a good 15 minutes then the lacking start floor it and nothing happens.... i have to search for a good acceleration in pedal someone help please.

I looked in the fuse box under the hood and there is no listing for it, also looked in the passenger side kick panel, no listing for it there either.

Its hard to explain, but I almost thought it was in the drive train at first, but that's not the case. its like it's out of tune when i accelerate. not missing or anything but just dull.

If i purchase a key online can the dealer cut and program the new key at what cost???

my ml500 has been shaken the fuel pump coil packs and wires has been changed ran for a couple days now its stil shaken and when in drive drives slugish

Have just replaced the electric motor in the fuelpump of my ML500. When I removed the pump from the fuel tank, I found that the electrical contacts are sort of sitting out in the open inside the fueltank. ( "Standard" elctrical connection, it's plastic covered rbut the metal connection can be reached by the fuel if it splashes around in the fuel tank or the tank is full). I have put everything back together indentical to the way it was when I pulled it apart. Still I am a bit worried about an electric current inside the fuel tank... Any dangers related to this? Thinking fire and explosion..

also sometimes say tele com muted and the sos button stays lit although i have no telecom subscription

It happen almost regularly. Tapping pedal usually stops it, but, also pushing gas pedal stops it or makes it start leaking air in floor board of drivers side.

When driving it well start to revup BC its not shifting right, so I'll have to pull over and turn off the car and restart and it has a steering fluid leak as well could this cause it to act up??? Or could it be something with the transmission??? How can I check on my own, and where is it located at?? PLEASE HELP!!!

Sometimes it works fine and then it starts to act up and sometimes stalls for a second