I bought a c230K 2000 recenetly, which had the fuel indicator light and check engine light come on after 10mins of driving. The dealer I bought it from diagnosed it and got a code P0455. I bought a new cap and the problem went away. I drove to work and back 20min each way and never had the light come on, for 4 days in a row. The fuel level was below quarter line.

Today I filled up the tank. I drove about 156KM (distance) and then around 160KM (distance) the light came on again. I stopped and adjusted the cap, then 5 mins later both fuel and CE lights came on.

When I take the cap off, I can see a little bit of gas residue on the cap and I see some wetness on the mouth of the openning. Is this normal?

Also, when I turn the cap ON, it clicks into place, should I stop there or keep turning it untill it can't turn any more?


Thx

__________________
190e 2.6 1990. 300,000 KM
C230 K 2000, 130,000 KM