AI Damage2000 Mercury Cougar: common problems
Owners of the 2000 Mercury Cougar filed 211 complaints with NHTSA, most often about electrical system and fuel system. Details by component below, with sources.
Key figures
- Owner complaints
- 211
- involving a crash
- 18
What fails most often
- 1 Electrical system 30% of all complaints
- 2 Fuel system 19% of all complaints
- 3 Engine and cooling 12% of all complaints
- 4 Visibility 9% of all complaints
- 5 Air bags 8% of all complaints
- 6 Vehicle speed control 8% of all complaints
- 7 Service brakes 6% of all complaints
- 8 Powertrain 4% of all complaints
- Electrical system: 63 complaints (30% of all), 1 of them with a crash reported by the owner.
- Fuel system: 41 complaints (19% of all).
- Engine and cooling: 26 complaints (12% of all), 1 of them with a crash reported by the owner.
- Visibility: 18 complaints (9% of all).
- Air bags: 17 complaints (8% of all), 11 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · 4 cyl
- 2.5 L · petrol · 6 cyl
- automatic, 4-speed
- manual, 5-speed
Drive: FWD
Symptoms owners describe
How many of the 211 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 63 | 1 | 0 |
| Fuel system | 41 | 0 | 0 |
| Engine and cooling | 26 | 1 | 0 |
| Visibility | 18 | 0 | 0 |
| Air bags | 17 | 11 | 0 |
| Vehicle speed control | 16 | 2 | 0 |
| Service brakes | 12 | 1 | 0 |
| Powertrain | 9 | 0 | 0 |
| Exterior lighting | 8 | 0 | 0 |
| Steering | 8 | 1 | 0 |
| Equipment | 7 | 0 | 0 |
| Structure | 7 | 0 | 0 |
| Latches, locks, linkages | 6 | 0 | 0 |
| Fuel/propulsion system | 5 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The air bags failed to deploy. There were no warning indicators on the instrument panel. He stated that he has been involved in numerous crashes due to dodging road debris, which caused his vehicle to be rear ended and crash into a tree. The air bags have never deployed in any of his crashes.
So this makes two front end collisions & the air bags never deployed. In fact she had another accident in sept 2003 where a car went through a red light and hit her,but that was a side impact & again this air bag did not deploy.
Dt*: the contact stated that the vehicle's airbags did not deploy after hitting an embankment and flipping over on its top. The vehicle was traveling 55 mph when the vehicle was swerved to avoid hitting a deer, which caused the contact to lose control of the vehicle. The air bags did not deploy.
While driving at 45 mph vehicle stalled. This caused the loss of steering and brakes. As result, consumer was involved a collision, where the vehicle was totaled. Dealer notified.
The car would stall without warning one time leaving me in the middle of a busy intersection. This time on a slight hill I sat stalled with hazard lights & headlights on but got rear ended by a motorist traveling 50 mph. Had problem looked at & thought it was repaired but happened again. Car is now totaled.
The car has stalled on me 3 times while driving. The first time the vehicle stalled going up a driveway with the gas pedal pushed in. The second time the car was taveling at 20 mph turning a corner when vehicle stalled. 3rd time vehicle stalled at 5 mph with foot pressed on gas pedal.
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.
While driving 15 mph, the headlights failed without warning. In addition, the windows and sun roof independently rolled down. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,934 of 36,656 model years in the NHTSA data (top 5% most complained about).
On average one model year of the Cougar has 73 complaints (26 years in the data). This year has 211, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Other years of this model
- Cougar 198417 sources
- Cougar 198510 sources
- Cougar 198613 sources
- Cougar 198733 sources
- Cougar 198855 sources
- Cougar 198981 sources
- Cougar 199086 sources
- Cougar 199173 sources
- Cougar 199292 sources
- Cougar 1993195 sources
- Cougar 1994137 sources
- Cougar 1995109 sources
- Cougar 199662 sources
- Cougar 199776 sources
- Cougar 1999454 sources
- Cougar 200182 sources
- Cougar 200295 sources
- Cougar 99994 sources
Questions and answers
What are the most common problems with the 2000 Mercury Cougar?
Owner complaints to NHTSA most often mention: electrical system, fuel system, engine and cooling. Total complaints: 211. The most frequent symptoms in complaint texts: stalls while driving (22%), fuel system, fuel smell (18%), windows, sunroof (10%).
How many service bulletins (TSB) were issued for the 2000 Mercury Cougar?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2000 Mercury Cougar from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2000 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.