1998 Mercedes-Benz S420 1998 Base Sedan

Common Issues

Owners of the 1998 Mercedes-Benz S420 may encounter issues such as air suspension failures, electrical problems, and engine oil leaks. It's essential to check for signs of wear in the air suspension system and ensure that all electrical components are functioning properly.

Maintenance Tips

Regular maintenance is crucial for the longevity of the S420. Schedule oil changes every 5,000 to 7,500 miles, check fluid levels regularly, and inspect the air suspension system for any leaks or wear. Additionally, replacing the spark plugs and ignition coils as per the manufacturer's recommendation can help maintain engine performance.

Typical Repair/Owership Cost Ranges

Repair costs for the 1998 S420 can vary widely based on the issue, but typical ranges include:

• Routine maintenance: $100 - $300 per service
• Suspension repairs: $800 - $2,000
• Electrical system repairs: $150 - $1,500

Buying Advice (What to Inspect)

When considering purchasing a 1998 S420, inspect the following:

• Air suspension components for leaks or damage
• Electrical system functionality including lights and dashboard indicators
• Engine oil for signs of leaks or excessive consumption
• Interior electronics and navigation system performance

FAQ

What is the fuel economy of the 1998 Mercedes-Benz S420? The S420 typically achieves around 16 mpg in the city and 22 mpg on the highway.

How reliable is the 1998 S420? While generally reliable, the S420 can have issues related to its age, particularly in the air suspension and electrical systems.

What type of oil should I use for the S420? It is recommended to use synthetic oil with a viscosity of 5W-40 for optimal engine performance.

Are parts for the 1998 S420 expensive? Parts can be moderately priced, especially if sourced from aftermarket suppliers, but some components may be costly due to the vehicle’s age.

How often should I change the transmission fluid? It is advisable to change the transmission fluid every 40,000 to 60,000 miles for optimal performance.

Is the 1998 S420 good for long-distance driving? Yes, the S420 is known for its comfort and smooth ride, making it suitable for long-distance travel.

What are the key safety features of the 1998 S420? Standard safety features include anti-lock brakes, traction control, and multiple airbags.

How do I find a good mechanic for my S420? Look for mechanics who specialize in European vehicles and check reviews or recommendations from other Mercedes owners.