In a discussion regarding a 2007 Mercedes Actros 4 axle, a user reported a red screen error related to a display piston drop. Responses suggested potential issues with the pump drive, specifically low oil levels or problems with the power take-off. The user clarified that hydraulic oil levels were normal, leading to further suggestions to check the steering gear oil level. Ultimately, it was determined that a defective power steering oil level sensor was the cause of the error, resolving the issue. Summary generated by the language model.
