Used 2018 BMW 4 Series for Sale nearPhiladelphia, PA

How much does the 2018 BMW 4 Series cost?

Prices have softened 4.05% compared to this time last year, making it a favorable time to shop this model year.

There are 891 listings available, which gives you a solid pool to compare prices and conditions.

Is the 2018 BMW 4 Series a good car?

Yes — the 4.92/5 user rating points to strong owner satisfaction. Owners consistently praise its quality, performance, and luxury features, and they also highlight the smooth ride, sporty handling, and useful tech like the sound system and navigation. If you want a premium coupe or hatchback-like Gran Coupe with a sporty edge and everyday usability, this model year fits that brief well. With 35.9% of listings marked as good or great deals, you also have a decent chance of finding a competitively priced example.

Is the 2018 BMW 4 Series reliable?

Owners rate it 4.92/5, a strong signal of long-term satisfaction.

The owner feedback points to a car that feels dependable in daily use, with repeated praise for quality and trouble-free ownership impressions. That said, BMW repairs can be costly if something goes wrong, so long-term ownership risk for used buyers is less about the car’s basic appeal and more about making sure the specific example has been maintained properly.

What should I look for when buying a used 2018 BMW 4 Series?

At 51.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report so you can confirm accident records, title status, and ownership history before you get too far into the process. Then prioritize a pre-purchase inspection, especially if you’re considering a convertible or a higher-mileage car, since condition can vary a lot from one listing to the next. Focus on signs of wear, roof operation if applicable, and overall maintenance quality rather than just the badge and trim level.

Is now a good time to buy a used 2018 BMW 4 Series?

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile opportunities.

• Deal availability: 35.9% of listings are priced as good or great deals.
• Inventory: There are 891 listings available.
• Price trend: Prices have softened 4.05% compared with last year.
• Clean inventory: 51.5% of listings are accident-free.

If you find a listing below $17,215, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 BMW 4 Series's resale value?

The current average of $17,777 sits slightly below last year's $18,527.

That price movement suggests the market has cooled a bit, which can make the car more attractive to you as a buyer but can also mean future sellers may need to price more competitively. If you buy well and keep the car in strong condition, you’ll be better positioned to protect value when it’s time to sell. Demand should remain supported by the model’s premium image, sporty character, and broad appeal to shoppers who want style and practicality together.

Vehicles with strong owner satisfaction ratings, like this model year's 4.92/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2018 BMW 4 Series or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 35.9% of listings are priced as good or great deals.
• At 51.5% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 4.05% compared with last year.
• Owners rate it 4.92/5 — a strong satisfaction signal.

The bottom line: The 2018 is the right pick if you want a well-liked, stylish premium car and you’re willing to shop carefully for condition and history. If you’re especially price-sensitive, you may want to compare nearby years and focus on the cleanest, best-maintained example rather than chasing the newest badge alone.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.