Awasome 2004 Mercedes E320 Reduce Oil Level And Check Engine Light 2023. Web the emission system,someplace from a loose fuel cap to a stuck purge valve (diy cleaning in the diy section)check you gas cap.look for any worn or cracked vac. Typically, the total cost ranges between $121 to $160, which can be broken.

Typically, the total cost ranges between $121 to $160, which can be broken. If the check engine light is on, that means there are fault codes stored in the. Web the cost for an oil level sensor replacement varies according to the make and model of your vehicle.