1998 Mitsubishi Diamante: Recalls, Problems & MPG
Here are the deets on the 1998 Mitsubishi Diamante: 1 recall, 27 owner complaints and up to 18 mpg combined.

Recalls
1 vehicle recall from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Equipment Vehicle recall #04V428000 · 2004 · 100,432 vehicles
What's wrong: Certain passenger vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard no. 208, 'occupant crash protection.' the bilingual english/spanish removable air bag warning labels affixed to the dash and to the sunvisor do not meet the size requirements of the standard.
Why it matters: This does not meet the requirements of the standard.
The fix: Mitsubishi caribbean will mail a customer notification letter containing a written description and a graphic of the bi-lingual dashboard air bag warning label. In addition, all current 2000-2004 nativa owners will also receive replacement air bag alert labels for the sun visors. This recall is…
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 4 injuries and 0 deaths were reported.
What owners describe
- Visibility (wipers, glass) (15): the most common themes are leaks (10), fire / smoke (2).
- Speed control / throttle (3): no single recurring theme in the descriptions.
- Brakes (hydraulic) (3): no single recurring theme in the descriptions.
- Electrical (2): no single recurring theme in the descriptions.
The 1998 Mitsubishi Diamante has 27 owner complaints, ranking #9 of 12 Diamante model years for complaints (about average; the typical year has 42). Complaints peaked in 2001 (6 filed that year). The typical problem showed up when the car was about 6 years old, at a median of 71,750 miles. Neighboring years: 1997 (34 complaints, 0 recalls), 1999 (23 complaints, 2 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.5 L 6-cyl | Automatic 4-spd | Front-Wheel Drive | 16 | 23 | 18 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 1998 Mitsubishi Diamante.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
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FAQ
Does the 1998 Mitsubishi Diamante have any recalls?
Yes. NHTSA lists 1 vehicle recall for the 1998 Mitsubishi Diamante. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 1998 Mitsubishi Diamante problems?
Owners have filed 27 complaints with NHTSA. The most-reported areas are visibility (wipers, glass) (15), speed control / throttle (3), brakes (hydraulic) (3).
What gas mileage does the 1998 Mitsubishi Diamante get?
EPA ratings run up to 18 mpg combined (3.5 L, Automatic 4-spd), across 1 engine and transmission combos.
Where can I get a 1998 Mitsubishi Diamante repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.