1991 Mazda MX-6 Problems: 3 Known Issues
1991 model year · 220+ owner reports · Updated November 2026
According to Au7o's analysis of 220+ owner reports, the 1991 Mazda MX-6 has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Clutch Slave Cylinder Leaks, Causing a Soft or Sinking Clutch Pedal (Manual) with 120 owner reports. Across all issues with published estimates, repair costs range from $100 to $3,000. DIY maintenance guides at au7o.io.
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All 3 Known Issues
NHTSA Recalls7 recalls
ELECTRICAL SYSTEM:IGNITION:SWITCH
Mazda North American Operations (Mazda) is recalling certain model year 1989-1998 MPV, 1990-1995 323, 1990-1998 Protege, 1992-1993 MX-3, 1993-1995 929, 1993-1997 MX-6, and 1993-1998 626 vehicles. In the affected vehicles, grease applied to the contact points inside the ignition switch may become conductive and overheat.
FUEL SYSTEM, GASOLINE
CERTAIN SPX FILTRAN FUEL FILTERS WITH A 45-DEGREE ANGLE INLET TUBE, MODEL 800F350-S1, SOLD AS REPLACEMENT FILTERS FOR 1993-1997 FORD PROBE,1993-2001 MAZDA 626 AND MX-6, AND 1983-1994 LOYAL, 3-DOOR COUPE, HATCHBACK, SEDAN, WAGON, BRAT, DL, GL, GL-10, RX, XT, AND XT6 PASSENGER VEHICLES WITH EFI OR TURBO ENGINES. THESE FILTERS ARE PACKAGED AS WIX, NAPA, AND CARQUEST BRAND FUEL FILTERS. CERTAIN SPX FILTRAN FUEL FILTERS WITH A 90-DEGREE ANGLE INLET TUBE, MODEL 800F300-S2, SOLD AS REPLACEMENT FILTERS FOR 19983-1994 SUBARU VEHICLES WITH EFI OR TURBO ENGINES. THESE FILTERS ARE PACKAGED AS WIX, NAPA, AND CARQUEST BRAND FUEL FILTERS. FUEL MAY LEAK FROM THE FILTER DUE TO NON-CONFORMING BRAZING WELDS WHERE THE INLET TUBE IS CONNECTED TO THE FILTER CAN.
AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH THE SAS SENSOR UNIT. THESE VEHICLES CAN EXPERIENCE AIR BAG DEPLOYMENTS IN MINOR UNDERCARRIAGE IMPACTS.
EXTERIOR LIGHTING:HEADLIGHTS:SWITCH
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE HEADLIGHT WIRE THAT RUNS THROUGH THE TURN SIGNAL LEVER CAN FAIL AT THE POINT WHERE IT IS SOLDERED TO THE HEADLIGHT SWITCH.
POWER TRAIN:MANUAL TRANSMISSION
THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SPEEDOMETER GEAR SET CAN FAIL. SYMPTOMS INCLUDE AN INOPERATIVE SPEEDOMETER, SEVERE LACK OF POWER, AND/OR A TRANSMISSION WHICH STAYS IN THIRD GEAR. IN SOME CASES, THE "OD OFF" LIGHT MAY ALSO FLASH.
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Frequently Asked Questions
What are the most common Mazda MX-6 problems?
According to Au7o's analysis of 220+ owner reports, the 1991 Mazda MX-6 has 3 documented issues. The most frequently reported are: Clutch Slave Cylinder Leaks, Causing a Soft or Sinking Clutch Pedal (Manual), Worn or Torn Transmission Mounts Cause Clunks and Vibration, Rear Wheel Well, Quarter-Panel Seam and Rocker Panel Rust-Through. None are rated critical, but regular maintenance is recommended.
Is the Mazda MX-6 reliable?
The 1991 Mazda MX-6 has 3 known issues documented across 220+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mazda MX-6 problems?
Repair costs for known Mazda MX-6 issues range from $100 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1990-1997 Mazda MX-6 Clutch Slave Cylinder Leaks, Causing a Soft or Sinking Clutch Pedal (Manual)?
Owners of manual-transmission MX-6s report that the hydraulic clutch slave cylinder wears out with age. The slave cylinder sits near the transmission and is the last link in the hydraulic clutch system. As its internal seals break down from age, heat or contamination, it leaks fl… Repairs typically run $100-$350. Severity: medium.
What is the 1990-1997 Mazda MX-6 Worn or Torn Transmission Mounts Cause Clunks and Vibration?
Owners of the MX-6 and the related 626 report that the rubber transmission mounts wear out or tear with age. When a mount is worn, the engine and transaxle move more than they should. Owners notice this as a clunk when the car is put in gear and as extra vibration at idle or unde… Repairs typically run $100-$350. Severity: medium.
What is the 1988-1997 Mazda MX-6 Rear Wheel Well, Quarter-Panel Seam and Rocker Panel Rust-Through?
Both MX-6 generations rust in predictable places: the lip and top of the rear wheel wells where a right-angle seam traps salty road grime, the seams where the quarter panels meet the trunk floor behind the rear wheels, the rocker panels, and the rear strut towers. The 1988-1992 G… Repairs typically run $200-$3,000. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.