Before buying a 2017 Mercedes S63 Cabriolet, learn about inspection, maintenance, and potential issues to ensure a smooth transaction.



A prospective buyer is eyeing a 2017 Mercedes S63 Cabriolet with 42,000 miles. With such a luxury vehicle, ensuring a wise purchase involves meticulous attention to detail. Key considerations include oil changes, potential maintenance issues, and the importance of thorough inspections prior to finalizing the deal.
Importance of Pre-Purchase Inspections
As this high-end model shows signs of aging, a pre-purchase inspection (PPI) is crucial. Enlisting a German specialty repair shop can unearth deferred maintenance or repairs that the previous owner may have overlooked. This is particularly important in the case of flagship vehicles like the S63, which can have hidden issues that could become significant costs later on.
The moment you step into the transaction, aim to negotiate with the findings from the PPI. These inspections typically evaluate all systems in the vehicle, spotting potential red flags that may go unnoticed during a casual test drive. Expert eyes can identify problems ranging from minor annoyances to significant mechanical issues, making the PPI worth the investment.
Finding Trustworthy Documentation
If the S63 is being offered by a reputable dealer, it can serve as a safeguard. Look for a clean CARFAX report along with recent service invoices, ideally from a certified Mercedes-Benz dealership. This documentation verifies that the vehicle has been serviced properly and regularly. Even among dealers, proactive research will help verify their reputation and the vehicle’s history.
However, always consider that even documentation can sometimes be incomplete. Thus, augmenting this information with a PPI can provide peace of mind. If you’re conducting your own inspection, be thorough: look for signs of past accidents such as paint overspray, check for missing parts, and assess the condition of the interior and exterior. Make sure all functions, including the power top, work without issue.

Maintenance Needs at Purchase
Given the S63's mileage, you should assess the upcoming service needs. Mercedes recommends a “B” service around this mileage, which generally includes oil and fluid changes, inspection of brakes, and other essential system updates. It’s also a good time to check the condition and service schedule of the 7-speed MCT gearbox, as well as ensure that the transfer case on 4MATIC models has been serviced, avoiding potential costly repairs down the line.
The longevity and performance of the S63 will be directly tied to how well-maintained it has been. If routine services have been neglected, you may face steep costs shortly after purchase.
Understanding Sacrificial Pigtails
The mention of “sacrificial pigtails” is relevant, though their necessity can vary based on model year and specific vehicle conditions. These components are designed to protect sensitive electronic wiring from oil wicking, which can cause significant electrical problems. While this concern may not be applicable to all 2017 models, consulting with an experienced mechanic can clarify whether it’s worth addressing for your particular vehicle.
Long-Term Ownership Considerations
In addition to a PPI and thorough document checks, consider the long-term service implications of owning a Mercedes S63. Such premium vehicles often come with beloved performance but can involve meaningful maintenance costs, particularly as they age. Finding a trustworthy mechanic who specializes in high-end European vehicles is invaluable. Additionally, inquire about aftermarket warranty options through the dealership to cover potential costly repairs, especially for common issues like ABC (Active Body Control) problems that could arise as the car ages.
A reliable warranty can provide some buffer against unexpected repair bills, creating a less stressful ownership experience. This added layer of protection may ultimately make your luxurious driving experience more enjoyable, allowing you to focus on what matters: the thrill of owning an AMG flagship.
Buying a high-end vehicle like the S63 can be rewarding but requires diligence and a proactive approach to maintenance and care. With the right preparations and inspections, you can enjoy the exceptional performance and luxury that the 2017 Mercedes S63 Cabriolet promises without the dread of looming repair costs.
If you have any questions regarding the purchasing process for such vehicles, feel free to reach out with as much detail as possible, ensuring tailored advice for your unique situation.
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