MitsubishiOutlander20032.4L/mitsubishi/outlander/2003/2-4l/

2003 Mitsubishi Outlander — 2.4L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2003 Outlander 2.4L.

Body SUVEngine 2.4LTransmission Automatic (S4)

The 2003 Mitsubishi Outlander is a compact SUV built on Mitsubishi’s A platform and powered by a naturally aspirated 2.4‑liter engine that requires 4.6 quarts of 10W‑30/5W‑30 API‑rated oil; it is paired with an automatic S4 transmission and achieves EPA ratings of 18 mpg city, 24 mpg highway, and 21 mpg combined. This early‑model Outlander was the first to feature Mitsubishi’s “Hybrid‑like” powertrain design, a notable detail that underscored the brand’s push into efficient cross‑overs. In terms of reliability, the 2003 model year sits near the mid‑range of complaints within the 2003‑2025 Outlander history, with a total of 129 owner complaints and a top issue area of suspension, but it is far below the peak complaint year of 2015 (233 complaints) and well above the recent low of 13 complaints in 2025, indicating a relatively stable but not exemplary reliability record for the series.

Model year201520142013201220112010200920082003

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity4.6 qtOEM · verified
Engine oil type10W-30 / 5W-30 APIOEM · verified
Lug nut torque65-80 ft-lbsOEM · verified
EPA fuel economy18/24/21 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 35 · 520 CCA battery, OE oil filter MZ690116. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 35 · 520 CCAOEM · verified
Tire size4WD:P225-75R15OEM · verified
Wheel / rim6-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filterMZ690116
Engine air filterMR552951
Fuel filterMR514676 alt MB129895
Spark plugMS851357 alt MS851728
Front wiper bladesMZ690946 alt 8250A098
Serpentine beltMN137520
ThermostatMD328070
Cabin air filterMR398288

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S4)

Dimensions & weight NHTSA vPIC

Overall length179.1 in
Overall width68.9 in
Overall height63.4 in
Wheelbase103.5 in
Curb weight3241 lb
Track (front / rear)59.1 / 59.1 in
Weight distribution (front / rear)58/42

Ratings & economy EPA / vPIC

EPA city / highway / combined18 / 24 / 21 mpg
DrivetrainFront-Wheel Drive
Recommended fuelRegular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent published road-test results.

10.6–12.4 sec0–60 mph (tested)quickest 10.60 sec — 2003 XLS
140 hpHorsepower (as tested)
149–152 lb-ftTorque (as tested)
YearTrim / engine0–60¼ mileHPDrivetrain
2003XLS 2.4L I-410.60 sec18.00 sec140 hpAWD
2003XLS 2.4L I-411.70 sec18.60 sec140 hpAWD
2003LS 2.4L I-412.40 sec18.60 sec140 hpAWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 4.6 qt of 10W-30 / 5W-30 API engine oil, DOT 3 · DOT 4 brake fluid. Torque lug nuts to 65-80 ft-lbs, the oil drain plug to 29.0 ft-lbs. The firing order is 1-3-4-2.

Lubricants & capacities

Brake FluidDOT 3 · DOT 4
Engine Oil10W-30 · API · 5W-30
Engine Oil Capacity4.6 qt
Power Steering FluidGenuine Mitsubishi PS fluid
Power Steering FluidUse Mitsubishi PS fluid

Engine torques

Camshaft Bearing/Carrier Cap Bolts or StudsDOHC: 14 ft-lbs; SOHC:
Crankshaft Pulley and/or Damper Bolts18 ft-lbs
Engine Flywheel Bolts98 ft-lbs
Engine Oil Pan Drain Plug29.0 ft-lbs

Chassis torques

Lug Nuts65-80 ft-lbs
Transfer Case Fill Plug22.0-25.0 ft-lbs
Transfer Case Drain Plug22.0-25.0 ft-lbs
Front Wheel Hub181 ft-lbs
Rear Wheel Hub130 ft-lbs
Front Wheel Hub181 ft-lbs
Rear Wheel Hub181 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)100 rpm
Spark Plug Gap0.028-0.035 in
Spark Plug Torque13.0 ft-lbs
Ignition Timing5, Not adjustable degrees
Ignition Timing Acceptable Variance2 degrees

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.17-1.26 lbs
Oil GroupPAG
Oil Type56
Oil Capacity4.10 oz
Standard BCI Group Number35
Standard BCI Cranking Performance520 cca

Service checks

Regulated Fuel System Pressure (Without Vacuum)47.0-50.0 psi
Regulated Fuel System Pressure (With Vacuum)38.0 psi
Engine Compression185-139 PSI. 14 Maximum variation PSI.
Engine Compression139-185 psi
Engine Oil Pressure4.3 psi @ Idle, 43-100 psi @ 3500 rpm psi
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque Caliper to Bracket28-31 ft-lbs
Torque to Knuckle74-81 ft-lbs
Minimum Pad ThicknessFront: 0.080; Rear: 0.080 in
Minimum Shoe Thickness0.059 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0015 in
Rotor Nominal Thickness From1.024 in
Rotor Nominal Thickness To1.024 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115 ft. lbs., Step 2: 90-9415 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 60,000 mi; coolant at 60,000 mi. The big-interval services (at 60,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miBrake Hydraulic System (inspect fluid level) · Clutch Master Cylinder (inspect fluid level) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Power Steering System (inspect) · Tire & Wheel Assembly (rotate)
Every 15,000 miAxle Shaft Oil Seal (inspect) · Brake Linings (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace)
Every 30,000 miAccessory Drive Belt (inspect) · Brake Drum Assembly (inspect) · Brake System (inspect) · Differential (inspect fluid level) · Drive Axle Assembly (drain & refill) · Driveshaft U-Joint (inspect)
At 60,000 miEngine Coolant System (drain, flush & refill)
Every 60,000 miFuel Evaporative Emission Control System (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Spark Plug Wires (replace) · Timing Belt (replace)
At 105,000 miSpark Plugs (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2003 Mitsubishi Outlander registers 129 complaints and 6 recalls, standing as the most documented year of the 2003-2006 production run against 52 complaints and 4 recalls in 2004 and just 18 complaints and 1 recall by 2005. This pattern indicates 2003 served as the launch-year peak for reported issues within an early generation characterized by rapidly decreasing regulatory activity, a trend that reverses dramatically in 2007 when complaints jump to 125 and recalls to 9, initiating a sustained period of higher volume through 2016. Federal data identifies 19 suspension complaints, 16 exterior lighting issues, and 11 engine-related concerns for 2003, alongside 12 crash-related incidents and 2 fire complaints. With complaint and recall volumes double those of 2004 and significantly lower than later redesign years, the 2003 model falls at the high-point of its specific generation's reliability curve. Prospective buyers should therefore prioritize 2004-2006 examples from this era or secure comprehensive pre-purchase inspection and maintenance verification for any 2003 under consideration.

6
Open recalls
NHTSA campaigns
67
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
129
Owner complaints
12 involved a crash · 2 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 129 complaints on record, top 8 components.

Suspension19
Exterior Lighting16
Engine & Engine Cooling11
Steering10
Power Train10
Air Bags6
Visibility6
Electrical System5

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 6 campaigns on record for this vehicle.

03V028000Vehicle Speed ControlReported 30/01/2003

ON CERTAIN SPORT UTILITY VEHICLES, DURING EXTREMELY LOW TEMPERATURE CONDITIONS, ICE CAN BUILD UP INSIDE THE ENGINE THROTTLE VALVE. THIS ICE BUILD-UP COULD CAUSE THE ACCELERATOR PEDAL TO STICK OR NOT TO RETURN TO IDLE… Remedy: DEALERS WILL REPROGRAM THE ENGINE CONTROL COMPUTER TO ELIMINATE THIS CONDITION. OWNER NOTIFICATION BEGAN ON JANUARY 29, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED…

04V197000Trailer HitchesReported 26/04/2004

CERTAIN SPORT UTILITY VEHICLES MAY HAVE BEEN EQUIPPED WITH DEALER-INSTALLED TRAILER HITCH WIRING HARNESS AND CONTROL MODULE. THE ELECTRONIC CONTROL MODULE CAN OVERHEAT. Remedy: OWNERS ARE BEING REQUESTED TO STOP USING THE HARNESS UNTIL A NEWLY DESIGNED REPLACEMENT IS PROVIDED AND CAN BE INSTALLED BY THE DEALER. THE RECALL BEGAN ON MAY 28, 2004. OWNERS…

Technical service bulletins NHTSA · verified

Showing 5 of 67 bulletins on record with NHTSA.

BulletinDateComponentSummary
DEALER LETTER2023-07-21EquipmentThis is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has…
TSB-23-00-0042023-04-24StructureThis Technical Service Bulletin provides instructions and material safety data sheets for…
TSB-23-00-0012023-04-24EquipmentThis Technical Service Bulletin reviews the regulations that require a label showing the…
DEALER LETTER2023-04-21EquipmentThis is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has…
TECH TALK 2702022-10-10SeatsTech Talk is a service newsletter that was sent out to dealers. It covers various topics…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Outlander. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2003 Outlander 2.4L take?

4.6 qt of ABOVE 0 degreesF 10W-30 SL API, BELOW 100 degreesF 5W-30 SL API, per the factory manual.

Does the 2003 Outlander have open recalls?

NHTSA lists 6 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 2.4L get?

EPA figures are 18 city / 24 highway / 21 combined mpg.