All comparisonsCost of ownership comparison

BMW 3 Series vs Mercedes-Benz C-Class

The BMW 3 Series and Mercedes-Benz C-Class are the two most cross-shopped entry-luxury sedans in America, appealing to buyers who want prestige, performance, and refinement without stepping into full-size territory. Both land at nearly identical used prices around $36,000-$36,500 for 2022 models, making a true cost comparison essential before signing anything.

Lower cost to own: BMW 3 Series

The 2022 BMW 3 Series edges out the C-Class with slightly better predicted reliability scores, lower average repair costs, and stronger long-term resale value retention, translating to roughly $1,800-$2,200 less in five-year ownership costs.

2022 BMW 3 Series

Winner
~$36,000 used
True monthly cost$987/mo
5-year total$59,220
Ownership Score67/100
Depreciation$512/mo
Insurance$198/mo
Fuel / energy$167/mo
Maintenance & repairs$110/mo
  • Stronger resale value retention at 5 years (~38% vs ~35% for C-Class)
  • Marginally lower average annual repair cost (~$1,020/yr per RepairPal)
  • Slightly better fuel economy on base 330i (26 city/36 hwy combined ~30 mpg)
  • Premium fuel required, adding ~$300/yr over regular-fuel vehicles
  • Higher insurance premiums than mainstream brands by roughly $600-$900/yr
  • Out-of-warranty BMW service visits average $250-$400 per appointment

2022 Mercedes-Benz C-Class

~$36,500 used
True monthly cost$1,023/mo
5-year total$61,380
Ownership Score62/100
Depreciation$538/mo
Insurance$207/mo
Fuel / energy$170/mo
Maintenance & repairs$108/mo
  • Competitive maintenance costs within luxury segment (~$1,000/yr average)
  • Available Mercedes-Benz pre-paid maintenance plans reduce surprise costs
  • Strong brand residuals support lease-end and trade-in values
  • 2022 C-Class reliability rated below average by Consumer Reports (3/5 predicted)
  • Higher depreciation rate in years 1-3 versus 3 Series on comparable trims
  • MBUX infotainment system tied to expensive dealer software updates post-warranty

Category by category

Reliability
BMW 3 Series scores slightly higher on predicted reliability for 2022 per Consumer Reports and J.D. Power IQS, though neither model is class-leading.
BMW 3 Series
Fuel / energy cost
The 330i returns approximately 30 mpg combined versus the C300's 29 mpg combined, saving roughly $80-$120 annually at current gas prices.
BMW 3 Series
Resale value
Kelley Blue Book and Edmunds data show the 2022 3 Series retaining approximately 38% of MSRP at 5 years versus around 35% for the C-Class.
BMW 3 Series
Insurance
The 3 Series averages roughly $1,980-$2,100/yr to insure nationally versus $2,050-$2,200/yr for the C-Class based on 2024 insurance industry benchmarks.
BMW 3 Series
Maintenance
Both cars average $950-$1,050 per year in scheduled maintenance costs out of warranty, with dealer labor rates nearly identical in most US markets.
Tie
Practicality
The 2022 C-Class offers a slightly larger trunk (12.6 cu ft vs 12.0 cu ft) and a more upright rear seating position that many passengers find more comfortable on longer trips.
Mercedes-Benz C-Class

The verdict

Over five years and 60,000 miles, the BMW 3 Series costs roughly $2,100 less to own than the C-Class from identical starting prices, driven by better depreciation and slightly lower insurance. That said, both are expensive vehicles to maintain outside of warranty, and neither should be purchased without budgeting $1,000-$1,200 per year for upkeep. If cost efficiency is the priority, the 3 Series wins; if interior luxury and ride comfort matter more, the C-Class gap is worth the premium for many buyers.

BMW 3 Series: The 2022 BMW 3 Series is best for the driving-focused buyer who prioritizes handling dynamics, slightly lower long-term costs, and the best resale value hedge in the compact luxury sedan segment.

Mercedes-Benz C-Class: The 2022 Mercedes-Benz C-Class suits the comfort- and technology-oriented buyer who values a more opulent interior ambiance and is willing to absorb a small cost premium for the Mercedes badge and cabin experience.

Frequently asked questions

Which is cheaper to maintain, the BMW 3 Series or Mercedes C-Class?

They are nearly equal, both averaging $950-$1,050 per year in maintenance costs; however, BMW's out-of-warranty service intervals are slightly longer, which can reduce visit frequency.

Do the 2022 BMW 3 Series and C-Class require premium gas?

Yes, both require 91-octane premium unleaded fuel, which adds approximately $250-$350 per year to fuel costs compared with a regular-fuel vehicle at 12,000 miles annually.

Which holds its value better, the 2022 3 Series or C-Class?

The 2022 BMW 3 Series retains approximately 38% of its original MSRP at 5 years versus roughly 35% for the C-Class, making it the stronger resale value hold.

Is the 2022 Mercedes C-Class more reliable than the BMW 3 Series?

No — Consumer Reports gives the 2022 C-Class a predicted reliability score of 3/5 while the 3 Series scores slightly above average, though neither is considered highly reliable for the class.

What is the true 5-year cost of owning a 2022 BMW 3 Series vs C-Class?

Based on depreciation, insurance, fuel, and maintenance, the 2022 BMW 3 Series costs approximately $59,220 over five years versus roughly $61,380 for the C-Class, assuming a $36,000 and $36,500 purchase price respectively.

Install AutoCost AI

Add it to your home screen for instant access — no App Store needed.