NHTSA lists 5 safety recalls and 211 owner complaints for the 2000 Mercury Cougar. Most complaints involve electrical system (63) and fuel system, gasoline (38). The EPA rates it 21–25 mpg combined.
FEDERAL MOGUL IS RECALLING 6,903 AFTERMARKET BALL JOINT ASSEMBLIES SHIPPED BETWEEN NOVEMBER 9, 2007 AND MARCH 26, 2008, WHICH MAY HAVE BEEN PACKAGED WITH INCORRECT NUTS. THE PART NUMBERS PACKAGED WITH INCORRECT NUTS ARE: K7147, K7329, K8683, AND 104353. THESE PARTS WERE MADE FOR USE ON THE VARIOUS VEHICLES LISTED ABOVE.
CERTAIN AFTERMARKET BRAKE HYDRAULIC MASTER CYLINDERS SOLD AS REPLACEMENT BRAKE CYLINDERS FOR CERTAIN FORD, DAIMLERCHRYSLER, AND JEEP PASSENGER VEHICLES. THESE BRAKE CYLINDERS WERE SOLD UNDER THE BRAND NAMES OF NAPA, RAYBESTOS, AIMCO, AC DELCO, CARQUEST, BENDIX, AND WAGNER. ONLY PRODUCTS THAT WERE MANUFACTURED FROM JULY 27, 2005 THROUGH JANUARY 17, 2006 (DATE CODES 0529 THROUGH 0602) ARE SUBJECT TO THIS RECALL. WHEN SUBJECT TO VERY COLD TEMPERATURES, AN INTERNAL SEAL IN THE MASTER CYLINDER COULD LOSE FLEXIBILITY AND MAY CAUSE BRAKE FLUID TO LEAK.
ON CERTAIN PASSENGER VEHICLES, CONTAMINATION OF THE FILTER IN THE FUEL DELIVERY MODULE (FDM) CAN REDUCE, AND EVENTUALLY BLOCK, THE FLOW OF FUEL TO THE ENGINE.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“TL* THE CONTACT OWNS A 2000 MERCURY COUGAR. THE CONTACT STATED THAT THE BATTERY FAILED AND MULTIPLE WARNING INDICATORS, INCLUDING THE CHECK ENGINE INDICATOR, ILLUMINATED. THE VEHICLE WAS TAKEN TO SEVERAL INDEPENDENT MECHANICS TO HAVE THE BATTERY REPLACED. AFTER MULTIPLE INCORRECT DIAGNOSTICS, IT WAS DETERMINED THAT THE BATTERY CABLE ROUTING WAS DEFECTIVE. THE CONTACT DISCOVERED NHTSA CAMPAIGN NUMBER: 01V031000 (ELECTRICAL SYSTEM); HOWEVER, THE VIN WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 38,600.”
“DURING PERIODIC MAINTENANCE THE DEALER DISCOVERED THE PASSENGER SIDE FUEL TANK STRAP HAD CORRODED AND BROKE. LIKELY CAUSE WAS THE SALT AND CHEMICALS APPLIED TO THE ROADS DURING THE WINTER. THE DRIVER SIDE STRAP WAS INTACT BUT WOULD LIKELY FAIL IN THE FUTURE. I WAS INFORMED THE FUEL TANK STRAPS WERE SPECIAL ORDER SINCE THEY DO NOT NORMALLY FAIL. RETURNED THE NEXT DAY TO HAVE BOTH STRAPS REPLACED. FORTUNATELY THE ISSUE WAS DISCOVERED BEFORE THE TANK SEPARATED FROM THE VEHICLE. THIS IS THE SAME ISSUE WITH FORD TRUCKS OF THE SAME VINTAGE. *TR”
“THE VEHICLE, 2000 MERCURY COUGAR, BEGINS JERKING AS IT IS BEING DRIVEN AT ANY SPEED, AND RESULTS IN COMPLETE SHUT DOWN OF ENGINE. SOMETIMES THE ENGINE WILL RESTART AFTER WAITING SEVERAL MINUTES, AND WILL NOT RESTART AT TIMES; REQUIRING TOWING. I TOOK THE VEHICLE TO THE LOCAL DEALER, AND AN EMPLOYEE STATED THAT IT WAS KNOWN BY THE MANUFACTURER TO BE A DESIGN FLAW IN THAT YEAR VEHICLE. ANOTHER EMPLOYEE TOOK HIM TO THE SIDE AND SCOULDED HIM FOR THE DISCLOSURE. THEY WOULD NOT DISCUSS IT FURTHER, EVEN THOUGH I CONTINUED TO QUESTION WHAT THEY WERE DOING TO CORRECT THIS KNOWN DEFECT IN WORKMANSHIP. TO THIS DAY THE VEHICLE CONTINUED TO REPEAT THE SAME FAILURE. I HAD THE FUEL FILTER REPLACED TWICE. FINALLY A MECHANIC REPLACED THE CAM SHAFT SENSOR (HE STATED THAT HE HAD SEEN THIS PROBLEM WITH THE CAR MANY TIMES) AND KNEW THAT WAS THE PROBLEM. EVEN THOUGH THE SENSOR WAS REPLACED, THE CAR WORKED WITHOUT SHUT DOWN FOR APPROXIMATELY 4 MONTHS, BUT BEGAN THE SAME SEQUENCE OF SHUT DOWNS ALL OVER AGAIN. THE DESIGN FLAW SHOULD BE RECALLED OR CONSUMERS SHOULD BE REIMBURSED FOR PURCHASE OF A KNOWN DEFECTIVE VEHICLE BY IT'S MANUFACTURER AND DESIGNER. IT IS A SHAME TO GET "STUCK"…”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Cougar Man 5-spd, 4 cyl, 2.0 L · Front-Wheel Drive | 21 | 31 | 25 | $2,500 | 355 |
| Cougar Auto 4-spd, 6 cyl, 2.5 L · Front-Wheel Drive | 18 | 26 | 21 | $2,950 | 423 |
| Cougar Man 5-spd, 6 cyl, 2.5 L · Front-Wheel Drive | 18 | 26 | 21 | $2,950 | 423 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
5 safety recalls as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 211 complaints with NHTSA. The most-cited components are electrical system (63), fuel system, gasoline (38), engine and engine cooling (26). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2000 Mercury Cougar at 21–25 mpg combined, depending on engine and drivetrain (3 versions rated).