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Home / Maintenance & Repair / Performance Refined: 6 Essential Fluids in Your Vehicle

Performance Refined: 6 Essential Fluids in Your Vehicle

Explore what fluids need to be changed in a car, how to check fluids in your Mercedes-Benz, and where to get car fluids checked in Corpus Christi.

A Mercedes-Benz is more than a vehicle—it’s a statement of engineering excellence, intelligent design, and unmistakable luxury. To maintain that performance, comfort, and precision, every detail must be properly cared for. That includes the often-overlooked but always essential fluids in your car.

Understanding what fluids a car needs and knowing when to have them inspected or changed is one of the most effective ways to protect your investment. From the moment you take the wheel to every mile that follows, your Mercedes-Benz relies on these fluids to deliver the effortless performance you expect.

At Ed Hicks Imports in Corpus Christi, our team is trained to service every Mercedes-Benz model with the expertise and care it deserves. Let’s take a closer look at the critical fluids in your vehicle, why they matter, and how to stay on top of their maintenance.

Why Fluid Maintenance Matters

Mercedes-Benz vehicles are engineered for lasting precision and performance. Each fluid plays a vital role in keeping your systems running in harmony—from cooling the engine to controlling braking force. As these fluids age, they can lose effectiveness, become contaminated, or degrade under stress. Ignoring them can impact everything from efficiency to safety.

Making time to check fluids in your car or scheduling regular maintenance ensures your vehicle continues to operate as the automaker intended—with power, poise, and reliability.

What Fluids Need to Be Changed in a Car?

Here are the six primary fluids your Mercedes-Benz depends on. Each one contributes to a specific system’s functionality—and each one deserves proper attention.

1. Engine Oil

Engine oil is the cornerstone of your car’s performance. It reduces friction, regulates temperature, and protects key internal components. Mercedes-Benz models are built with precision engines that demand high-quality synthetic oil, typically changed every 10,000 miles or once a year—whichever comes first.

To check the oil level, consult your model’s digital service menu or, in some cases, the dipstick. If the level is low or the oil is dark and thick, it’s time for service. Never compromise on engine oil—using the right specification is critical to long-term performance.

2. Transmission Fluid

Transmission fluid ensures smooth gear transitions and helps cool the transmission system. For many Mercedes-Benz models, this is a sealed system requiring specialized service—fluid levels and condition should be checked by a certified technician.

Generally, transmission fluid should be changed every 40,000 to 60,000 miles. Delayed shifts, slipping gears, or unusual vibrations may signal it’s time for an inspection.

3. Brake Fluid

Brake fluid transfers the pressure from your foot on the pedal to the brake calipers. Over time, it absorbs moisture, which can affect braking performance and safety. Mercedes-Benz recommends a brake fluid flush every two years, regardless of mileage.

Check the reservoir under the hood—it should contain clear or lightly colored fluid. If it appears dark or low, bring your vehicle in for immediate brake service.

4. Coolant (Antifreeze)

Coolant regulates your engine’s temperature and protects it from extreme heat or cold. It also helps prevent internal corrosion. Coolant should be replaced at the interval specified in your owner’s manual—typically around every 10 years or 150,000 miles for most newer models.

To check coolant, look at the reservoir when the engine is cool. The fluid should be clean, brightly colored, and between the minimum and maximum lines.

5. Power Steering Fluid

Some Mercedes-Benz models use electric power steering systems, which don’t require fluid service. However, for models equipped with hydraulic systems, power steering fluid supports effortless handling and responsiveness.

If steering becomes difficult or noisy, it could indicate low or contaminated fluid. This should be addressed by a professional who can determine the proper fluid type for your specific vehicle.

6. Windshield Washer Fluid

This fluid may not affect your engine, but it plays a role in safety. Keeping your windshield clean ensures clear vision in all conditions—especially during rain, bugs, or dust-heavy drives across South Texas.

Washer fluid is easy to refill. The reservoir is clearly marked and typically translucent so you can view levels at a glance. Always use washer fluid formulated for automotive systems; water alone may freeze or clog the lines.

Service That Matches the Standard of Your Drive

If you’re ready to protect your vehicle’s performance with precision care, trust the certified team at Ed Hicks Imports in Corpus Christi. We use genuine Mercedes-Benz parts and fluids, and we tailor every visit to the specific needs of your vehicle.

Whether you’re due for an oil change, need a brake fluid flush, or simply want a professional to check fluids in your car, we’re here to deliver service that’s as refined and reliable as the vehicle you drive.

Schedule your next service today and experience why Ed Hicks Imports is the trusted destination for Mercedes-Benz maintenance in South Texas.

Ed Hicks Imports

3102 South Padre Island Drive
Corpus Christi, TX 78415

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