The maintenance cost of Mercedes cars can vary depending on several factors.

Firstly, the model and age of the car play a significant role. Older models might require more frequent and costly repairs.

Secondly, the type of maintenance services needed, such as routine servicing, engine repairs, or electrical system checks, affect the overall cost. Regular maintenance like oil changes, filter replacements, and brake inspections are necessary to keep the car running smoothly and can cost a certain amount.

For Mercedes, parts and components can be relatively expensive compared to some other brands. Also, the location and the garage or service center you choose for maintenance can impact the cost. Authorized dealerships often charge higher prices but offer genuine parts and expertise. Independent garages might be more cost-effective but you need to ensure their quality and reliability.

To reduce maintenance costs, it's essential to follow the manufacturer's recommended maintenance schedule, drive carefully to avoid damage, and keep the car clean and well-protected. Additionally, some Mercedes models have better reliability records, which can translate to lower maintenance expenses over time.

So, while it's difficult to provide an exact figure for the maintenance cost of Mercedes cars, it typically ranges from a few hundred to several thousand dollars per year, depending on the factors mentioned above.