Comparison

AUDI 90 vs MERCEDES-BENZ S600

Side-by-side comparison of the AUDI 90 and MERCEDES-BENZ S600 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 AUDI 90 (1988–1995) and the MERCEDES-BENZ S600 (1993–2007), drawn from that federal complaint and recall record; see our methodology for how the figures are compiled.

The AUDI 90 (1988–1995, 6 model years) carries 95 NHTSA consumer complaints and 0 safety recalls, while the MERCEDES-BENZ S600 (1993–2007, 11 model years) carries 95 complaints and 0 recalls. Severity indicators for the pair split as follows: 2 vs 1 crashes, 5 vs 7 fires, and 0 vs 0 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 AUDI 90, the leading complaint category is electrical system:ignition:switch (11 filings), followed by fuel system, gasoline:fuel injection system and structure:body:door. For the MERCEDES-BENZ S600, it is engine and engine cooling (16), ahead of suspension and engine. 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.

AUDI 90 vs MERCEDES-BENZ S600 - NHTSA complaint, recall, and safety rating comparison
AUDI 90 Metric MERCEDES-BENZ S600
N/A Avg Safety Rating N/A
95 Total Complaints 95
0 Total Recalls 0
2 Crashes Reported 1
5 Fires Reported 7
3 Injuries Reported 1
0 Deaths Reported 0
6 years Years on Market 11 years

Top Complaint Categories

ELECTRICAL SYSTEM:IGNITION:SWITCH
11
0
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
7
0
STRUCTURE:BODY:DOOR
5
0
ELECTRICAL SYSTEM:IGNITION
5
0
ENGINE AND ENGINE COOLING:COOLING SYSTEM
3
0
ENGINE AND ENGINE COOLING
0
16
SUSPENSION
0
15
ENGINE
0
11
AUDI 90 MERCEDES-BENZ S600

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Frequently Asked Questions

Which is safer, AUDI 90 or MERCEDES-BENZ S600?
AUDI 90 has 95 total NHTSA complaints with 2 crashes, while MERCEDES-BENZ S600 has 95 complaints with 1 crashes. Review individual model years for specific safety ratings.
How many recalls does AUDI 90 have compared to MERCEDES-BENZ S600?
AUDI 90 has 0 recalls across 6 model years, while MERCEDES-BENZ S600 has 0 recalls across 11 model years.
What are the most common problems with AUDI 90?
The most commonly reported issues for AUDI 90 are: ELECTRICAL SYSTEM:IGNITION:SWITCH (11 complaints), FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM (7 complaints), STRUCTURE:BODY:DOOR (5 complaints), ELECTRICAL SYSTEM:IGNITION (5 complaints), ENGINE AND ENGINE COOLING:COOLING SYSTEM (3 complaints).
What are the most common problems with MERCEDES-BENZ S600?
The most commonly reported issues for MERCEDES-BENZ S600 are: ENGINE AND ENGINE COOLING (16 complaints), SUSPENSION (15 complaints), ENGINE (11 complaints), ELECTRICAL SYSTEM (11 complaints), ENGINE AND ENGINE COOLING:ENGINE (7 complaints).

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