
The first will not be covered if it's overdue by 3 months. Below is relevant information about the first maintenance: Content of minor maintenance: Minor maintenance generally refers to the routine maintenance items performed at the manufacturer's specified time or mileage to ensure vehicle performance after the car has traveled a certain distance. It mainly includes changing the engine oil and oil filter. Content of major maintenance: Major maintenance refers to the routine maintenance performed at the manufacturer's specified time or mileage, which includes replacing the engine oil, oil filter, air filter, and fuel filter. In addition to changing the engine oil and oil filter, major maintenance also involves the air filter and fuel filter.

It really depends on the 4S store's . My second car was 10 days overdue for its first maintenance, and I had to persuade them a lot before they agreed to do it. Generally, the new car manual states that the first maintenance should be done at three months or 5,000 kilometers. Even if you exceed the deadline by just a few kilometers, they have the right to refuse free service. A friend who works in the after-sales service of a Japanese brand said that manufacturers' systems now have electronic records, and the backend can see the actual vehicle usage time. Even one day overdue is hard to negotiate. However, some places are willing to accommodate within one month to maintain customer relationships. It is recommended to immediately contact the 4S store where you purchased the car to confirm, and also check if the mileage has exceeded as well. These two conditions are calculated based on whichever comes first. Be sure to bring the maintenance manual, as it is an important document.

The 3-month deadline for the first service is indeed strict. My neighbor just faced the same issue—his German car was denied warranty coverage for being just 5 days overdue. The service advisor explained that engine oil oxidizes over time inside the engine, compromising protection even with low mileage, and post-deadline changes become owner-paid. This ultimately depends on purchase contract terms—some brands offer flexible policies, but negotiation gets harder with longer delays. A pro tip: When purchasing, ask the salesperson to note a grace period in the contract (many overlook this). If denied, avoid confrontation and prioritize self-paid —the break-in period is critical for new cars; don't risk major damage over minor delays.

This issue has troubled me before. When I first bought my car, I went on a business trip and forgot about the initial . As a result, I went to the 4S store half a month overdue, and they said the system was locked and couldn't perform the free maintenance. Later, after researching on my own, I discovered that the manufacturer set a three-month validity period because: the initial oil in the new car's engine contains special break-in additives that gradually lose effectiveness over time. Even if the mileage hasn't been reached, metal debris may settle if the period is exceeded. So now, the first thing I do when I get a new car is mark the initial maintenance date on the calendar. If you do exceed the deadline, it's recommended to immediately pay for the maintenance yourself instead of waiting, to avoid engine wear and damage.

Handling overdue first depends on two factors: brand and mileage. Last year when helping my cousin with this situation, I found that domestic car brands are generally more lenient, while luxury brands enforce stricter policies. If you're just a few days overdue and haven't reached the mileage limit, bringing your maintenance manual to the dealership and appealing might work; if both the mileage and time limits are exceeded, there's basically no chance. Here's an insider tip: the 'free first maintenance' is actually covered by the dealership claiming reimbursement from the manufacturer, and they have performance metrics too. You might negotiate a special approval with a flexible service manager, but don't get your hopes up. Nowadays many cars come with apps that send maintenance reminders - it's recommended to enable them.

As a seasoned driver with ten years of experience, I recommend checking the manual for the manufacturer's guidelines first. Most brands require the first service at three months or 5,000 kilometers, whichever comes first. The reason for rejection if overdue is practical: the factory-installed oil contains special additives that degrade after three months, affecting engine performance. Calling the dealership where you purchased the car is more effective—provide the VIN, and they can check system records. Some dealerships may accommodate regular customers for reputation's sake, though you might need to cover some material costs. If all else fails, visit a secondary repair shop, but keep records to avoid voiding the warranty later. The key is to act quickly and not delay.


