2000 MB 320 with P0450 & Fuel drips leaking in the rear bottom area.

What is your question?

Engine sputtered / died at stop sign but was able to restart, and was sputtering while driving ~1.5 miles to home. Diagnostic came up with P0450 & noticed fuel leak(dripping not escaping vapor) in the rear bottom area at the same time. Fuel dripping leak continued for few hours while parked, & continued intermittently for several days while parked outside. Questions are; 1) Can fuel tank pressure sensor failure contribute to a fuel leak somewhere in the fuel line or connection? 2) Understand the fuel pressure sensor can be replaced to take care of the P0450 code but would it also take care of the fuel leak? 3) Can undetected increase in fuel tank pressure due to the faulty pressure sensor, push fuel out to leak somewhere along the fuel line/connection? 4) Can the pressure sensor be replaced individually or would require to replace the entire left sending unit altogether? Thank for your advice.

What makes this problem better or worse?

It's seems worse while engine is running and after cut off for few hours

How long has your 2000 Mercedes-Benz E320 had this problem?

Once in two weeks ago & has not been driven since.