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2004 Mitsubishi Diamante ES

The 2004 Mitsubishi Diamante ES is a 205-hp 3.5-liter V6 with a 4-speed automatic transmission w/adaptive shift control. It starts at $25,594 MSRP.

It makes 205 horsepower at 5,000 rpm and 231 lb-ft of torque at 4000 rpm. EPA fuel-economy estimates are 17 mpg city and 25 mpg highway.

The Diamante measures 196.0 inches long on a 107.2-inch wheelbase and has a curb weight of 3,505 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$25,594 ($44,034 *)
Engine
Engine TypeGas V6
Displacement3.5 L
Horsepower205 hp @ 5,000 rpm
Torque231 lb-ft @ 4000 rpm
Injection TypeMPI
Drivetrain
Drive TypeFront Wheel Drive
Transmission
Transmission4-speed automatic transmission w/adaptive shift control
1st Gear2.84
2nd Gear1.5
3rd Gear1
4th Gear0.73
Reverse2.72
Final Drive3.49
Fuel Economy
City17 MPG
Highway25 MPG
Recommended FuelPremium Unleaded
Tank Capacity19 gal
Suspension
Front SuspensionMacPherson strut w/coil springs
Rear SuspensionIndependent multi-link w/coil springs
Front Stabilizer Bar0.90 in
Rear Stabilizer Bar0.70 in
Brakes
Front Brake Disc10.9 x 0.9 in
Rear Brake Disc10.2 x 0.4 in
Tires & Wheels
Wheels Front16 x 6 in (aluminum)
Wheels Rear16 x 6 in (aluminum)
Tires FrontP215/60R16
Tires RearP215/60R16
Dimensions & Weight
Length196 in
Width70.3 in
Height56.5 in
Wheelbase107.2 in
Front Track60.8 in
Rear Track60.4 in
Ground Clearance4.6 in
Cargo Volume14.2 ft³
Curb Weight3,505 lbs
Interior
Headroom Front37.6 in
Headroom Rear36.3 in
Legroom Front43.6 in
Legroom Rear36.6 in
Shoulder Room Front55.9 in
Shoulder Room Rear56 in
Hip Room Front54.3 in
Hip Room Rear55.8 in
* Amount adjusted for inflation to 2026 dollars

Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2004 Mitsubishi Diamante 4-DR.).

Recalls

1 recall on file with NHTSA for the 2004 Mitsubishi DIAMANTE. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Sep 1, 2004 · EQUIPMENT:OTHER:LABELS

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.

Consequence: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.

Remedy: 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 EXPECTED TO BEGIN DURING MARCH OR APRIL 2005. THE NOTIFICATION TO THE NATIVA OWNERS IS EXPECTED TO BEGIN DURING APRIL OR MAY 2005. OWNERS SHOULD CONTACT MITSUBISHI CARIBBEAN AT 1-787-251-8715.

NHTSA campaign 04V428000

3 owner complaints to NHTSA for the 2004 Mitsubishi DIAMANTE

Owner Complaints

3 owner complaints filed with NHTSA for the 2004 Mitsubishi DIAMANTE. See all on nhtsa.gov

Most-cited areas
Power Train3
A complaint can cite more than one area.
Most recent complaints
Nov 8, 2019 · Power Train
“THE DIAMANTE HAS AN ODD ISSUE WHERE THE VEHICLE WILL NOT SHIFT GEARS CORRECTLY WHICH AN EXTREMELY DANGEROUS ISSUE FOR DRIVERS. THE INFORMATION BOARD SHOWS THE TRANSACTION RAPIDLY SWITCHING FROM…”
Jun 13, 2012 · Power Train
“CPSC#I11B0131A. 2004 MITSUBISHI DIAMANTE. F4A51 AUTOMATIC TRANSMISSION FAILURE. *LN THE CONSUMER STATED SHE HAS CONCERNS WITH THE SAFETY AND RELIABILITY OF MITSUBISHI AND DODGE VEHICLES AND THEIR…”
Nov 15, 2011 · Power Train
“THE MAIN ISSUE SEEMS TO BE A MANUFACTURING DEFECT IN THE WAVE/CUSHION SPRING LOCATED IN THE TRANSMISSION. MITSUBISHI HAS DESIGNED THE WAVE SPRING AS A FRAGILE TWO COIL PIECE WHICH HAS BEEN KNOWN TO…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2004 MITSUBISHI DIAMANTE. US-market vehicles only; data cached for up to 7 days.

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