pete_w

I have two intermittent codes that disappear and come back:
P2066 - Fuel Level Sensor “B” Performance
P2068 - Fuel Level Sensor “A” Performance

Today I received a new code that I haven't seen before:
N0104 - Voltage Drops Significantly (more than 15%)

The car is a 2015 C300 4Matic with 87k miles. It drives fine and had new system and starter batteries put in about 2 years ago. The Fuel Level Sensor codes disappear for a month or two if I clear them via the OBDII port, but then come back again.

Any thoughts?

Cosworth2000

You need to replace the fuel pump. Looks like it's dying slowly but you should also check the fuel pressure.