Mercedes-Benz R500 heavy steering at idle, improved with accelerator input over 1000 RPM on Mercedes-Benz R500

Some Mercedes-Benz R500 owners report experiencing heavy steering at idle, which improves with accelerator input over 1000 RPM. This issue may be linked to a service bulletin addressing heavy steering at low speeds in Mercedes vehicles. Additionally, problems with the factory power steering pumps and racks have been well-documented, leading to a significant number of R500 vehicles requiring steering rack replacements. The change in steering behavior with engine speed suggests a connection between engine RPM and power steering assistance. It is advisable for owners experiencing these issues to have their power steering system inspected by a qualified technician for effective diagnosis and resolution.