2018 Mercedes-Benz Metris Maintenance Schedule: An ASE Certified Guide
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2018 Mercedes-Benz Metris Maintenance Schedule: An ASE Certified Guide
The 2018 Mercedes-Benz Metris, a unique offering in the mid-size commercial van segment, brings Mercedes-Benz's engineering prowess to the workhorse market. To ensure your Metris continues to operate reliably and efficiently, adhering to a diligent maintenance schedule is paramount. As an ASE-certified master technician, I've put together this comprehensive guide to help you understand the specific needs of your 2018 Metris.
Factory Service Intervals: Keeping Your Metris Running Flawlessly
Mercedes-Benz vehicles, including the Metris, generally follow a flexible service schedule dictated by the 'ASSYST' (Active Service System) or 'ASSYST PLUS' system, which monitors various parameters to determine the optimal service interval. However, a general guideline is every 10,000 miles or 12 months, whichever comes first, for basic service. Mercedes-Benz designates these services as 'Service A' and 'Service B', alternating between the two.
Service A (Approximately every 10,000 miles or 1 year)
- Engine Oil and Filter Change: Crucial for engine longevity. The Metris uses synthetic oil, specifically MB-Approval 229.51 or 229.52. This is typically an 'every service' item.
- Tire Rotation and Pressure Check: Ensures even tire wear and optimal handling. Performed if applicable based on tire type and wear.
- Brake Inspection: Check pads, rotors, and fluid level. Essential for safety.
- Fluid Level Checks: All essential fluids (washer fluid, coolant, power steering, etc.) are topped off.
- Multipoint Inspection: A thorough visual inspection of various components.
Service B (Approximately every 20,000 miles or 2 years)
- All Service A items, plus:
- Cabin Air Filter Replacement: Improves air quality inside the cabin.
- Brake Fluid Replacement: Mercedes-Benz recommends this every two years to maintain braking performance and prevent corrosion.
Detailed Maintenance Schedule Breakdown
| Service Item | Interval (Miles/Months) | Typical Cost Estimate (Parts + Labor) | Notes |
|---|---|---|---|
| Engine Oil & Filter | 10,000 miles / 12 months | $150 - $250 | Use MB-Approved synthetic oil (229.51/229.52) |
| Cabin Air Filter | 20,000 miles / 24 months | $70 - $120 | Part of Service B, crucial for air quality |
| Engine Air Filter | 40,000 miles / 48 months | $80 - $150 | Varies with driving conditions |
| Brake Fluid Change | 20,000 miles / 24 months | $120 - $200 | Essential for brake system integrity |
| Spark Plugs | 40,000 miles / 48 months | $300 - $500 | Specific to 2.0L M274 gasoline engine |
| Transmission Fluid & Filter | 60,000 miles / 72 months | $400 - $700 | For 7G-TRONIC PLUS transmission. Critical for longevity. |
| Fuel Filter | 60,000 miles / 72 months | $150 - $250 | Diesel models would have a more frequent fuel filter interval. |
| Coolant Flush | 100,000 miles / 10 years | $200 - $350 | Uses specific Mercedes-Benz coolant |
| Drive Belt Inspection | Every Service A/B | N/A (Inspection only) | Replace as needed based on condition (cracks, fraying) |
| Tire Rotation | 10,000 miles / 12 months | $30 - $60 (if not included in service) | Ensures even wear, prolongs tire life |
Note: All costs are estimates and can vary significantly based on location, shop rates, and specific parts used.
Known Issues and Common Problems for the 2018 Mercedes-Benz Metris (W447 Generation)
While the Metris is generally considered a robust vehicle, like any vehicle, some common issues have been reported for this generation. Being aware of these can help you proactively address potential problems.
- Brake Wear: Given its commercial application and the weight it often carries, brake components (pads and rotors) can experience faster wear than in passenger cars. Regular inspection during Service A and B is essential.
- Suspension Components: The rear suspension, especially on vehicles that frequently carry heavy loads, can sometimes show premature wear on bushings or shocks. Listen for unusual noises over bumps and have the suspension inspected annually.
- Electrical Gremlins: Mercedes-Benz vehicles, while sophisticated, can occasionally exhibit minor electrical issues or sensor failures. These often manifest as warning lights on the dashboard. Don't ignore these lights; have diagnostics performed promptly.
- AdBlue System (Diesel Models - Not available in US in 2018): Although the 2018 Metris in the US market was primarily gasoline, for international diesel variants, the AdBlue (Diesel Exhaust Fluid) system can be a source of issues if not maintained properly or if contaminated fluid is used.
- Turbocharger Issues (Gasoline 2.0L M274 Engine): While not widespread, some owners of this engine in various Mercedes-Benz models have reported isolated cases of turbocharger-related issues. Symptoms include reduced power, whistling noises, or excessive smoke. Ensuring regular oil changes with the correct specification oil is crucial for turbocharger longevity.
Severe-Duty Adjustments
If your 2018 Metris is used in demanding conditions, the factory maintenance schedule may need to be adjusted.