[Brentjd2013]

I can’t find where the fuel tank pressure sensor is located on my 2002 c320. If anybody could possibly help me locate it that would be wonderful! I appreciate it in advance.

 

[tjts1]

Under the driver's side fuel tank access cover. It's integral to the left side fuel level sender.

 

[Brentjd2013]

Under the driver's side fuel tank access cover. It's integral to the left side fuel level sender.

Is it inside the gas tank? Most others are right on top of the fuel pump but this one is not.

 

[rudeney]

Refer to this:

https://benzbits.com/w209/FuelPumpLockRing.pdf

It's the part identified as "B4/3". It is not available as an individual part; you have to replace the entire sender unit.