Mercedes GL-Class 2017 Maintenance: Ultimate Care

For your 2017 Mercedes-Benz GL-Class, comprehensive maintenance involves regular fluid checks, filter replacements, brake inspections, tire rotations, and adherence to the Mercedes-Benz service schedule. Proper care ensures optimal performance, safety, and longevity for your luxury SUV.

Owning a 2017 Mercedes-Benz GL-Class is a statement of luxury and capability. These sophisticated SUVs offer unparalleled comfort and performance. To keep your GL-Class running smoothly and reliably for years to come, a proactive approach to maintenance is essential. Neglecting routine care can lead to unexpected issues and costly repairs down the road.

This guide is designed to demystify the maintenance needs of your 2017 GL-Class. We’ll break down the essential tasks, explain why they matter, and provide you with the knowledge to keep your vehicle in top condition. From understanding fluid types to recognizing service interval indicators, you’ll gain the confidence to manage your GL-Class’s upkeep effectively. Let’s dive into the ultimate care for your 2017 Mercedes-Benz GL-Class.

Understanding Your 2017 Mercedes-Benz GL-Class Maintenance Schedule

Mercedes-Benz vehicles are engineered for excellence, and their maintenance schedules are tailored to preserve that. For the 2017 GL-Class, there isn’t a single “one-size-fits-all” maintenance plan. Instead, Mercedes-Benz uses a system of Service A and Service B, which alternate and adapt based on your driving habits and vehicle data. The onboard computer, often displayed on the instrument cluster, will alert you when a particular service is due, typically indicated by a wrench symbol and a service code.

The basic principle behind these service intervals is to address wear and tear proactively. Service A usually involves more basic checks and fluid changes, while Service B incorporates more in-depth inspections and component replacements. It’s crucial to understand that these are general guidelines. Factors like your climate, driving style (e.g., frequent short trips vs. long highway cruising), and towing can influence how often specific items need attention. Always consult your owner’s manual for the most precise information tailored to your specific GL-Class model and its engine.

The Mercedes-Benz Service System (A & B)

The Service A and Service B system is designed to streamline maintenance and ensure your vehicle receives precisely what it needs, when it needs it. The system tracks mileage, engine operating time, and other parameters to determine the optimal time for each service.

Service A: Typically the first service performed after roughly 10,000 miles or 12 months, whichever comes first. It generally includes an oil and filter change, a comprehensive inspection of your vehicle’s systems, and a tire inflation check.
Service B: Usually follows Service A, often at around 20,000 miles or 24 months. This service includes all the items from Service A, plus additional checks such as a brake component inspection, cabin air filter replacement, and a thorough examination of suspension and steering components.

As your GL-Class accumulates mileage, subsequent services will build upon these basics, incorporating tasks like spark plug replacements, transmission fluid changes, and coolant flushes at their recommended intervals. Sticking to this schedule is the cornerstone of long-term reliability.

Importance of Following the Schedule

Adhering to the Mercedes-Benz service schedule offers several critical benefits:

Optimal Performance: Regular maintenance ensures all systems are functioning as intended, delivering the power, handling, and fuel efficiency your GL-Class was designed for.
Enhanced Safety: Key safety components like brakes, tires, and steering are meticulously inspected during scheduled services, minimizing the risk of failure.
Increased Longevity: Proactive maintenance prevents minor issues from escalating into major, expensive problems, significantly extending the vehicle’s lifespan.
Resale Value: A well-documented maintenance history is a significant selling point, assuring potential buyers that the vehicle has been cared for and commands a higher resale value.
Warranty Protection: Many warranty claims can be invalidated if it’s found that regular maintenance was not performed according to the manufacturer’s recommendations.

Essential 2017 GL-Class Maintenance Tasks

While the onboard computer will guide you, understanding the specific tasks involved can empower you to discuss them with your technician or even perform some DIY checks.

Engine Oil and Filter Change

This is perhaps the most fundamental maintenance task. Engine oil lubricates moving parts, cools the engine, and cleans out contaminants. Over time, oil degrades and accumulates dirt, losing its effectiveness.

Frequency: As indicated by your vehicle’s service reminder (Service A typically includes this).
Why it matters: Prevents engine wear, overheating, and sludge buildup.
What’s involved: Draining old oil, replacing the oil filter, and refilling with the correct type and quantity of new oil. Mercedes-Benz often specifies specific synthetic oil grades; using the wrong type can harm the engine. Consult your owner’s manual for the exact specification.

Air Filter Replacement

The engine air filter prevents dust, dirt, and debris from entering the engine’s combustion chamber. A clogged filter restricts airflow, reducing engine performance and fuel economy.

Frequency: Usually part of Service B, or sooner if driving in dusty conditions.
Why it matters: Ensures optimal airflow for combustion, improving performance and efficiency.
What’s involved: Locating the air filter housing, removing the old filter, and installing a new one.

Cabin Air Filter Replacement

This filter cleans the air that enters the passenger cabin. It removes dust, pollen, and other allergens, ensuring a pleasant and healthy environment inside your GL-Class.

Frequency: Typically checked during Service B and replaced annually or bi-annually.
Why it matters: Improves air quality inside the cabin, especially important for those with allergies.
What’s involved: Accessing the cabin air filter housing (often behind the glove box) and replacing the filter.

Brake System Inspection and Service

Your brakes are critical for safety. Regular inspections ensure the brake pads, rotors, and fluid are in good condition.

Frequency: Thoroughly inspected during Service B and subsequent intervals.
Why it matters: Ensures reliable stopping power and vehicle safety.
What’s involved: Checking brake pad thickness, rotor condition, brake line integrity, and brake fluid level and condition. Brake fluid absorbs moisture over time, reducing its effectiveness, so it typically needs flushing and replacement every few years.

Tire Maintenance

Proper tire care extends tire life and ensures optimal handling and safety.

Tire Rotation:
Frequency: Recommended every 5,000-7,500 miles, or as part of Service A/B.
Why it matters: Promotes even tread wear, leading to longer tire life and consistent handling.
What’s involved: Moving tires from one position on the vehicle to another according to a specific pattern.
Tire Pressure:
Frequency: Check monthly and before long trips.
Why it matters: Crucial for safety, fuel economy, and tire wear. Underinflated tires wear faster and affect handling; overinflated tires can lead to a harsher ride and uneven wear.
Where to find correct pressure: On the sticker inside the driver’s doorjamb or in the owner’s manual.
Wheel Alignment:
When to check: If you notice uneven tire wear, the vehicle pulling to one side, or after hitting a significant pothole.
Why it matters: Ensures tires are pointed in the correct direction, contributing to stable handling and preventing premature tire wear.

Fluid Checks and Flushes

Beyond engine oil, your GL-Class relies on several other vital fluids.

Coolant:
Check: Regularly monitor the level in the reservoir.
Flush: Performed at manufacturer-specified intervals (e.g., every few years or a certain mileage).
Why it matters: Prevents engine overheating by transferring heat away from the engine.
Power Steering Fluid:
Check: For leaks or low fluid levels.
Flush: Less frequent, but important for maintaining steering system health.
Why it matters: Essential for smooth and responsive steering.
Transmission Fluid:
Check: While many modern Mercedes transmissions are “sealed for life,” they still benefit from fluid changes at higher mileage intervals as recommended by the manufacturer.
Why it matters: Lubricates and cools the complex components within the transmission, ensuring smooth gear changes and preventing wear.
Windshield Washer Fluid:
Check: Keep topped up for clear visibility.

DIY Checks You Can Do at Home

While professional service is indispensable, a few simple checks can help you stay on top of your GL-Class’s condition between professional visits.

Visual Inspection

Tires: Look for any signs of damage, wear, or foreign objects.
Belts and Hoses: Check for cracks, fraying, or leaks.
Lights: Ensure all headlights, taillights, and turn signals are functioning.

Fluid Level Checks

Engine Oil: Park on a level surface, let the engine cool, and check the dipstick (if applicable) or the digital readout on the dashboard.
Coolant: Locate the coolant reservoir and check the level against the “min” and “max” marks. Important: Never open a hot radiator cap.
Windshield Washer Fluid: Simply open the cap and check the level.

Wiper Blade Condition

Check your wiper blades for any nicks, tears, or stiffness. Worn blades can leave streaks, impairing visibility. Replace them if they are no longer clearing water effectively.

When to Visit a Specialist

While some DIY checks are possible, complex systems require expert knowledge. For your 2017 GL-Class, consider visiting a certified Mercedes-Benz dealership or a reputable independent Mercedes-Benz specialist for:

Scheduled Maintenance (Service A/B and beyond): Technicians have the specialized tools, diagnostic equipment, and genuine parts required.
Brake System Work: Pad replacement, rotor resurfacing, or fluid flushing.
Engine Diagnostics: If you notice unusual noises, warning lights, or performance issues.
Transmission Service: If the vehicle is approaching higher mileage or exhibiting shifting problems.
Electrical System Issues: These can be complex and require specialized diagnostic tools and expertise.

For further information on vehicle maintenance best practices, consider resources from the U.S. Department of Transportation’s National Highway Traffic Safety Administration (NHTSA), which provides valuable information on vehicle safety and maintenance. You can visit https://www.nhtsa.gov/ for general automotive safety and maintenance advice.

2017 GL-Class Maintenance Costs and Factors

The cost of maintaining a luxury SUV like the 2017 Mercedes-Benz GL-Class can vary significantly. Understanding these factors can help you budget effectively.

Factors Influencing Maintenance Costs

Dealership vs. Independent Shop: Dealerships generally charge more due to labor rates and the use of OEM (Original Equipment Manufacturer) parts. Independent specialists often offer more competitive pricing while still using high-quality parts.
Genuine OEM Parts vs. Aftermarket: Genuine Mercedes-Benz parts are designed to exact specifications, ensuring a perfect fit and performance. While aftermarket parts can be cheaper, their quality and compatibility can vary.
Geographic Location: Labor rates and parts pricing can differ significantly depending on where you live.
Wear and Tear: How you drive your GL-Class (aggressive acceleration/braking vs. smooth cruising) and the conditions you drive in (heavy traffic, off-road, harsh weather) will influence how quickly components wear out.
DIY vs. Professional Service: Performing basic checks and simple replacements yourself can save on labor costs, but complex tasks should be left to professionals.

Disclaimer: These are estimates and can vary widely. Always get a detailed quote from your service provider before authorizing work.

Common Issues and Preventative Care for the 2017 GL-Class

While the 2017 GL-Class is generally reliable, like any vehicle, it can experience certain issues, especially as it ages. Understanding these potential problems and how to prevent them is key to a stress-free ownership experience.

Potential Issues to Watch For

Air Suspension Problems: Some GL-Class models are equipped with Airmatic air suspension. Common issues can include leaks in the air struts, compressor failure, or sensor malfunctions, leading to a vehicle that sags or has an uneven ride height.
Prevention: Regular inspection of air lines and components for damage or leaks. Ensuring the system is not overstressed by overloading.
Oil Leaks: As vehicles age, seals and gaskets can degrade, leading to oil leaks, often around the valve covers or oil pan.
Prevention: Prompt attention to any signs of oil leaks. Regular checks of oil levels.
Electrical Gremlins: While Mercedes-Benz vehicles are technologically advanced, electrical components can sometimes develop issues, ranging from infotainment system glitches to sensor malfunctions.
Prevention: Ensuring the battery is in good health and regularly inspected. Keeping software up-to-date.
Cooling System Issues: Leaks in radiators, hoses, or water pumps can lead to overheating.
Prevention: Regular coolant level checks and adherence to coolant flush schedules. Inspecting hoses for cracks or signs of wear.

Preventative Maintenance Strategies

The best way to avoid costly repairs is through diligent preventative maintenance.

Regular Inspections: Don’t skip scheduled service reminders. These inspections are designed to catch potential issues early.
Use Quality Fluids and Parts: Always use fluids and parts that meet or exceed Mercedes-Benz specifications. This includes engine oil, coolant, brake fluid, and replacement filters.
Drive Sensibly: Avoiding hard acceleration and braking can reduce wear on the engine, transmission, brakes, and suspension components.
Address Warning Lights Promptly: If a warning light illuminates on your dashboard, do not ignore it. Have it diagnosed by a qualified technician as soon as possible.
Keep it Clean: Regular washing and waxing protect the paintwork, while cleaning the interior helps preserve the cabin’s luxury feel. Cleaning undercarriage can help prevent rust and corrosion, especially in areas with road salt.

Frequently Asked Questions (FAQ)

Q1: How often should I change the oil in my 2017 Mercedes-Benz GL-Class?
A1: Your 2017 GL-Class will alert you via the onboard computer when an oil change is due, typically as part of its Service A or Service B intervals. This is usually around every 10,000 miles or once a year, whichever comes first, provided you use the recommended synthetic oil.

Q2: What kind of oil does a 2017 GL-Class need?
A2: Mercedes-Benz specifies particular synthetic engine oils that meet their stringent standards. It’s crucial to use an oil that complies with the Mercedes-Benz 229.5 or 229.51 specifications, as detailed in your owner’s manual. Using the incorrect oil can damage the engine.

Q3: Can I perform some maintenance tasks myself?
A3: Yes, you can perform basic checks like topping up windshield washer fluid, checking tire pressure and tread depth, and visually inspecting tires and under-hood components. However, for tasks like oil changes, filter replacements, brake servicing, and any diagnostic work, it’s best to rely on a qualified technician.

Q4: What is the difference between Mercedes-Benz Service A and Service B?
A4: Service A is a more basic maintenance service, typically including an oil and filter change and a comprehensive inspection. Service B is more extensive, building on Service A by including additional checks, cabin air filter replacement, and a more thorough brake inspection.

Q5: How do I know when my 2017 GL-Class needs brake service?
A5: Your GL-Class has sensors that will alert you on the dashboard when the brake pads are nearing the end of their life. Regular inspections during scheduled maintenance are also vital. Listen for any squealing or grinding noises, and check for a spongy brake pedal feel.

Q6: Should I use genuine Mercedes-Benz parts or aftermarket parts?
A6: While aftermarket parts can sometimes be more affordable, genuine Mercedes-Benz parts are manufactured

Mercedes GL-Class 2017 Maintenance: Ultimate Care