1994 Mitsubishi Diamante Problems
- Complaints
- 27filed with NHTSA
- Median mileage
- 50,015miles, 2 complaints with mileage
- Recalls
- 2campaigns on record
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
- NHTSA crash rating
- —overall rating starts with 2011 models
- EPA fuel economy
- 19 mpgcombined, 3.0L 6-cyl FWD · 16 city / 23 hwy
Sources: NHTSA records for the 1994 Mitsubishi Diamante (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 27 consumer complaints for the 1994 Mitsubishi Diamante. The part named most often is air bags, with 6 complaints (22% of the total), followed by brakes (6) and seat belts (4). 2 of the complaints include a mileage, and 50% of those were filed for vehicles with under 50,000 miles; the median is 50,015 miles. Of all complaints, 3 involved a crash, 2 an injury, according to the filers. NHTSA lists 2 recall campaigns and 5 technical service bulletins for this model year. Brakes complaints overlap with 2 recall campaigns covering the hoses, lines/piping, and fittings filed under the same part.
Not compared (before 2008). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Air bags6 22%
- Brakes6 22%
- Seat belts4 15%
- Tires3 11%
- Engine cooling2 7.4%
- Equipment2 7.4%
- Exterior lighting2 7.4%
- Vehicle speed control2 7.4%
- Fuel system1 3.7%
Also reported: Steering (1), Body and structure (1).
Example complaints
Air bags: “The contact owns a 1994 Mitsubishi Diamante. While driving at various speeds, the air bag warning light illuminated. The failure recurred whenever the vehicle was in operation. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 100,000.”
NHTSA complaint #10875641, filed 2016-06, 100,000 milesBrakes: “Since the purchase date of this vehicle, every six months, I get a pulsation in the steering wheel and the brake pedal. The first time, Mitsubishi dealer said resurface the rooter. The second time, they said I should replace the pads and rooter, the third time the wheel hub may be bad, the fourth time I took it to a local gas station and the rooters were resurfaced again and I feel the problem happening again. …”
NHTSA complaint #711901, filed 1999-09Seat belts: “The seat belt on the driver's side will not stay latched. Can buckle the seat belt, but it will just pop open. The seat belt buckle has not been fixed.”
NHTSA complaint #817420, filed 1997-10Tires: “Consumer states purchased new tire on 12/6/02. On 12/24/02 while driving tire blewout causing extensive damage to vehicle. Tire info: b.f. Goodrich ph p205/65r15 right front tire 30 miles on tire damage to vehicle tire not original”
NHTSA complaint #10002142, filed 2003-01, 30 milesMileage when problems were reported
50% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 30 and 100,000 miles.
Complaints by year filed
Trend: stable. Complaints filed in the last 3 full calendar years are within 25% of the 3 years before.
Fuel economy and running cost
EPA ratings for each 1994 Mitsubishi Diamante version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| Diamante FWD | 3.0L 6-cyl | 4-speed automatic | 16 | 22 | 18 | $4,550 |
| Diamante Wagon FWD | 3.0L 6-cyl | 4-speed automatic | 16 | 23 | 19 | $4,350 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
- 96V143002Aug 12, 1996Service brakes, hydraulic › Foundation components › Hoses, lines/piping, and fittingsCovers: Mitsubishi Diamante 1992–1994, 3000GT 1991–1994, Montero 1992–1994
Under conditions of full lock steering and full suspension travel, the left or right front wheel-side brake hose can crack, resulting in brake fluid leakage.
- 96V143001Jul 25, 1996Service brakes, hydraulic › Foundation components › Hoses, lines/piping, and fittingsCovers: Mitsubishi Diamante 1992–1994, 3000GT 1991–1994, Montero 1992–1994
Under conditions of full lock steering and full suspension travel, the left or right front wheel-side brake hose can crack, resulting in brake fluid leakage.
Recall details for the 1994 Mitsubishi Diamante → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 5 on record; the latest 5 are shown.
- 10211530Apr 7, 2022Other or unknown, Exterior lighting. This Technical Service Bulletin was sent to dealers to explain the difference between normal dew condensation, which is a natural phenomenon, and water penetration caused by improper sealing or a…
- 10169006Nov 26, 2019Equipment. This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10163703Jul 30, 2019Equipment. This is a Technical Service Bulletin sent to dealers. This bulletin supersedes TSB-18-00-003, issued April, 2018, to add updated information for Carrying Capacity Reduced Label.
- 10130469Feb 26, 2018Equipment. This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170852Jan 29, 2013Body and structure. This Technical Service Bulletin updates the door adjustment procedure in the Body Section of the applicable service manuals.
Other model years of the Mitsubishi Diamante
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2003 | 56 | 57,500 | 2 | — | 18 | Not compared (before 2008) | Stable |
| 2002 | 123 | 60,000 | 3 | — | 18 | Not compared (before 2008) | Stable |
| 2001 | 78 | 59,750 | 2 | — | 18 | Not compared (before 2008) | Stable |
| 2000 | 51 | 57,171 | 3 | — | 18 | Not compared (before 2008) | Stable |
| 1999 | 23 | 86,450 | 2 | — | 18 | — | Stable |
| 1998 | 27 | 71,750 | 1 | — | 18 | Not compared (before 2008) | Stable |
| 1997 | 34 | 111,566 | 0 | — | 19 | Not compared (before 2008) | Stable |
| 1995 | 12 | 137,500 | 0 | — | 19 | — | Not enough data |
| 1994 | 27 | 50,015 | 2 | — | 19 | Not compared (before 2008) | Stable |
| 1993 | 29 | 108 | 3 | — | 18 | Not compared (before 2008) | Stable |
| 1992 | 42 | 120,000 | 2 | — | 19 | Not compared (before 2008) | Stable |
All Mitsubishi Diamante model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 1994 Mitsubishi Diamante have?
NHTSA recorded 27 consumer complaints for the 1994 Mitsubishi Diamante as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 1994 Mitsubishi Diamante is reported most often?
Air bags is named most often, in 6 complaints (22% of the total), followed by brakes with 6.
Has the 1994 Mitsubishi Diamante been recalled?
NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
What gas mileage does the 1994 Mitsubishi Diamante get?
The EPA rates the 1994 Mitsubishi Diamante (Diamante Wagon, 3.0L 6-cyl) at 19 mpg combined, 16 city and 23 highway, with an estimated annual fuel cost of $4,350 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 1994 Mitsubishi Diamante reported?
Among the 2 complaints that include a mileage, the median is 50,015 miles and the middle half falls between 30 and 100,000 miles; 50% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.