KiaOptima2001Overview/kia/optima/2001/base/

2001 Kia Optima

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2001 Optima.

The 2001 Kia Optima marks the opening entry in the model's two-decade complaint record, logging 143 owner complaints and 3 recalls with its top complaint area being Structure. Measured against the full 2001–2020 history, this inaugural year falls well below the 2013 peak of 1,371 complaints and only modestly above the 2010 low of 75, placing it in the lower-middle band of the Optima's reliability trajectory. For researchers, that positioning indicates the first-year Optima was neither a flash point nor a benchmark of dependability, but rather a relatively quiet starting point for a model line whose most serious issues would surface roughly a decade later.

Model year2020201920182017201620152001

Quick specs

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

Lug nut torque66-81 ft-lbsOEM · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 47 · 600 CCA battery. 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 47 · 600 CCAOEM · verified

Performance & power Independent road tests

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

Independent road tests for the Optima of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

8.6–9.0 sec0–60 mph (tested)quickest 8.60 sec — 2001 SE V6
YearTrim / engine0–60¼ mileHPDrivetrain
2001SE V6 2.5L V68.60 sec16.60 sec169 hpFWD
2001SE V6 2.5L V68.70 sec16.60 sec169 hpFWD
2001SE V6 2.5L V69.00 sec16.60 sec169 hpFWD
2003LX 2.4L I-48.30 sec16.60 sec138 hpFWD

Service quick specs OEM factory data

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

This engine DOT 3 · DOT 4 brake fluid. Torque lug nuts to 66-81 ft-lbs, the oil drain plug to 25.0-33.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Brake FluidDOT 3 · DOT 4
Engine CoolantETHYLENE GLYCOL

Engine torques

Camshaft Bearing/Carrier Cap Bolts or Studs14-15 ft-lbs
Crankshaft Pulley and/or Damper Bolts80-94 ft-lbs
Engine Flywheel Bolts94-101 ft-lbs
Engine Oil Pan Drain Plug25.0-33.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs14-20 ft-lbs

Chassis torques

Lug Nuts66-81 ft-lbs
Front Wheel Hub170 ft-lbs
Rear Wheel Hub170 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-2-3-4-5-6
Curb Idle Speed (No Load)800 rpm
Curb Idle Speed Variance (No Load)100 rpm
Ignition Coil Primary Resistance.78 ohms
Ignition Coil Secondary Resistance20,000 ohms
Spark Plug Gap0.039-0.0.043 in
Spark Plug Torque11.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.50 lbs
Oil GroupPAG
Oil Type46
Oil Capacity5.07 oz
Standard BCI Group Number47
Standard BCI Cranking Performance600 cca

Service checks

Pressure Test21 psi
Radiator Cap Pressure Relief14-18 psi
Thermostat Opening Temperature176-183 °F
Injector Primary Resistance13-16 @ 68 degreesF ohms
Engine Compression178 minimum. 14 maximum variation PSI.
Engine Compression149-170 PSI. 14 maximum variation PSI.
Engine Oil Pressure11.4 psi
Engine Oil Pressure RPMIdle rpm

Brakes

Brake ApplicationWITH REAR DISC
Torque to Knuckle16-24 ft-lbs / 65-80 ft-lbs
Torque Caliper to Bracket51-63 ft-lbs
Minimum Pad Thickness0.080 in
Minimum Shoe Thickness0.040 in
Brake ApplicationWITH REAR DISC
Rotor Runout Limit0.004 in / 0.002 in
Rotor Nominal Thickness From0.394 in / 0.964 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
113-16 ft. lbs., Step 2: 90-9413–16 ft. lbs
Main Bearings — tightening sequence 1 stages
118 ft. lbs., Step 2: 90-9418 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; coolant every 24,000 mi. The big-interval services (every 24,000 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 miBody Latches, Locks & Hinges (lubricate) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate) · Transmission Assembly (inspect fluid level)
Every 15,000 miCV Joint Boot (inspect)
Every 24,000 miEngine Coolant System (drain, flush & refill)
Every 30,000 miAccessory Drive Belt (inspect) · Body Fasteners (inspect) · Brake Drum Assembly (inspect) · Brake Line (inspect) · Brake Rotor (inspect) · Engine Air Filter Element (replace)
At 60,000 miTiming Belt (inspect)
Every 60,000 miFuel Filter (replace) · Timing Belt (replace)
At 62,000 miEngine Coolant System (drain, flush & refill)
At 105,000 miFuel Evaporative Emission Control System Lines (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 2001 Kia Optima recorded 143 federal complaints, 3 recalls, and 2 investigations, with primary issues concentrated in the Structure, Suspension, Air Bags, and Engine & Engine Cooling categories. As the inaugural year of this dataset, 2001 sits at the beginning of a stable early-generation arc where complaints hovered between 75 and 225 through 2010, contrasting sharply with a massive spike to 1,371 complaints in 2013. Compared to the immediate subsequent years, the 2001 model carries the highest number of investigations until 2005 and matches the highest recall count of the early era, suggesting initial teething issues that required regulatory and manufacturer intervention. Although the data does not specify the root causes for its structural and airbag complaints, the 15 crash complaints and zero fire complaints indicate the defects were significant enough to warrant action without presenting a widespread fire risk. Ultimately, because 2001 falls within the comparatively manageable early arc of the Optima's lifecycle and avoids the severe escalation of issues seen a decade later, it is a viable used purchase provided all three safety recalls have been properly addressed.

3
Open recalls
NHTSA campaigns
25
Service bulletins
Manufacturer communications
2
ODI investigations
Office of Defects Investigation
143
Owner complaints
15 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 143 complaints on record, top 8 components.

Structure20
Suspension18
Air Bags18
Engine & Engine Cooling13
Electrical System7
Service Brakes, Hydraulic7
Suspension,Structure5
Vehicle Speed Control4

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

01V156000Air Bags:Side/WindowReported 01/05/2001

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SIDE AIR BAG WIRE HARNESS FOR THE DRIVER POSITION COULD BE MIS-ROUTED, WHICH COULD RESULT IN IT BEING PINCHED OR CUT BY THE SEAT CUSHION TILT MECHANISM. Remedy: DEALERS WILL CHECK FOR PROPER ROUTING OF THE SIDE AIR BAG WIRE HARNESS AND SECURE IT IN PLACE WITH A PLASTIC TIE-WRAP. IF THE WIRE HARNESS IS DAMAGED, IT WILL BE REPLACED. OWNER…

03V067000Electrical System:Starter AssemblyReported 04/03/2003

ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 2.5 AND 2.7 LITER V6 ENGINES, THE CRANKSHAFT POSITION SENSOR (CKP) CASES DID NOT MEET DIMENSIONAL SPECIFICATIONS. Remedy: DEALERS WILL REPLACE THE CKP. OWNER NOTIFICATION BEGAN MARCH 28, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE…

Technical service bulletins NHTSA · verified

Showing 5 of 25 bulletins on record with NHTSA.

BulletinDateComponentSummary
TSB_BOD055_R12021-09-13StructureTECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - This…
PS5392018-03-02Engine And Engine CoolingPITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed…
TSB-GEN085R12017-01-18EquipmentTSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners…
TSB-GEN0852016-11-04Latches/Locks/LinkagesTSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners…
PS4432016-04-04Electrical SystemTSB - USE OF AFTERMARKET USB CHARGING CABLES IN USB/12V PORTS - This article provides…

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 Optima. 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

Does the 2001 Optima have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.