What are some common issues with the power steering system in the Mercedes-Benz ML350?

The Mercedes Benz ML350 with traditional rack and pinion steering has experienced a problem with the rack assembly in certain model years (2006, 2007, 2008, and 2011) at mileages ranging from 30,000 to 140,000 miles. On average, the issue occurred around 74,731 miles. The rack in the ML350 is prone to leaking power steering fluid, which can impact turning ability and increase the risk of damaging the hydraulic pump. The fluid is crucial for lubricating the steering components and pump. If the fluid levels are low, you may hear whining noises coming from the steering assembly, have difficulty turning, and eventually experience power steering pump failure. Replacing the rack and pinion in the ML350 typically costs around $3,000, while the average cost to replace the power steering pump in a Mercedes ranges from $700 to $800 for parts and labor.