Comparison

MAZDA MX-6 vs MERCEDES-BENZ C320

Side-by-side comparison of the MAZDA MX-6 and MERCEDES-BENZ C320 drawn from the NHTSA consumer-complaint database, defect investigations, recall history, and NCAP crash-test ratings.

According to the National Highway Traffic Safety Administration (NHTSA), more than 2,000,000 consumer complaints have been filed against U.S. vehicles (2,054,142 as of August 2026). This is a head-to-head safety comparison between the MAZDA MX-6 (1986–1997) and the MERCEDES-BENZ C320 (2001–2007), drawn from that federal complaint and recall record; see our methodology for how the figures are compiled.

The MAZDA MX-6 (1986–1997, 12 model years) carries 302 NHTSA consumer complaints and 0 safety recalls, while the MERCEDES-BENZ C320 (2001–2007, 7 model years) carries 303 complaints and 0 recalls. Severity indicators for the pair split as follows: 35 vs 17 crashes, 5 vs 9 fires, and 3 vs 1 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the MAZDA MX-6, the leading complaint category is power train:automatic transmission (26 filings), followed by air bags:frontal and seat belts:front:buckle assembly. For the MERCEDES-BENZ C320, it is electrical system (60), ahead of seats and exterior lighting. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests, three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.

MAZDA MX-6 vs MERCEDES-BENZ C320 - NHTSA complaint, recall, and safety rating comparison
MAZDA MX-6 Metric MERCEDES-BENZ C320
N/A Avg Safety Rating N/A
302 Total Complaints 303
0 Total Recalls 0
35 Crashes Reported 17
5 Fires Reported 9
40 Injuries Reported 11
3 Deaths Reported 1
12 years Years on Market 7 years

Top Complaint Categories

POWER TRAIN:AUTOMATIC TRANSMISSION
26
0
AIR BAGS:FRONTAL
21
0
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
20
0
SEAT BELTS
12
0
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
12
0
ELECTRICAL SYSTEM
0
60
SEATS
0
41
EXTERIOR LIGHTING
0
13
MAZDA MX-6 MERCEDES-BENZ C320

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Frequently Asked Questions

Which is safer, MAZDA MX-6 or MERCEDES-BENZ C320?
MAZDA MX-6 has 302 total NHTSA complaints with 35 crashes, while MERCEDES-BENZ C320 has 303 complaints with 17 crashes. Review individual model years for specific safety ratings.
How many recalls does MAZDA MX-6 have compared to MERCEDES-BENZ C320?
MAZDA MX-6 has 0 recalls across 12 model years, while MERCEDES-BENZ C320 has 0 recalls across 7 model years.
What are the most common problems with MAZDA MX-6?
The most commonly reported issues for MAZDA MX-6 are: POWER TRAIN:AUTOMATIC TRANSMISSION (26 complaints), AIR BAGS:FRONTAL (21 complaints), SEAT BELTS:FRONT:BUCKLE ASSEMBLY (20 complaints), SEAT BELTS (12 complaints), ENGINE AND ENGINE COOLING:ENGINE:GASOLINE (12 complaints).
What are the most common problems with MERCEDES-BENZ C320?
The most commonly reported issues for MERCEDES-BENZ C320 are: ELECTRICAL SYSTEM (60 complaints), SEATS (41 complaints), EXTERIOR LIGHTING (13 complaints), AIR BAGS (13 complaints), ENGINE AND ENGINE COOLING:ENGINE (10 complaints).

Source: National Highway Traffic Safety Administration (NHTSA) complaints and recalls data