Vehicle Segment:
Mid-size Sedan
Target Demographic:
Families, commuters, value-conscious buyers.
Key Competitors:
Chevrolet Impala, Ford Taurus, Dodge Intrepid, Toyota Camry, Honda Accord.
Convenience:
Instant online access, searchable format, accessible on multiple devices.
Accuracy And Licensing:
Officially licensed, derived from OE materials by RepairSurge.
Cost Effectiveness:
Saves money on repair shop labor costs.
Manual Type:
Service and Repair Manual Software
Access Duration:
1 Year (with discounts for renewal)
Compatibility:
PC, Laptop, Smartphone, Tablet (via web browser)
Engine Service And Repair:
Complete diagnostic, repair, and overhaul procedures for all 2004 Century engine options.
Drivetrain Service And Repair:
Covers front-wheel drive, transmission (automatic), axle, driveshaft, and differential service.
Suspension And Steering Service And Repair:
Detailed information on front and rear suspension components, steering gear, power steering system, and wheel alignment.
Brake System Service And Repair:
Comprehensive coverage of hydraulic and mechanical aspects, including ABS, brake fluid, pads, rotors, calipers, and lines.
Electrical System Diagnosis And Repair:
Extensive wiring diagrams, component locations, and diagnostic procedures for all electrical systems, including starting, charging, lighting, and accessories.
Heating And Air Conditioning Service:
Detailed procedures for A/C system servicing, refrigerant handling, component replacement, and diagnosis.
Body And Frame Repair:
Information on body panel repair, corrosion protection, door mechanisms, glass replacement, and interior trim.
Preventative Maintenance Schedules:
Detailed recommended service intervals for all major maintenance tasks.
Diagnostic Troubleshooting Guides:
Systematic troubleshooting trees and flowcharts for common and uncommon issues.
Component Replacement Instructions:
Step-by-step guides for replacing virtually any component on the vehicle.
Torque Specifications And Tightening Sequences:
Precise torque values for all critical fasteners.
Depth Of Coverage:
OE-level technical information, suitable for professional technicians and advanced DIYers.
NHTSA Front Impact Driver:
5-Star (as per NHTSA data for similar W-body vehicles of the era)
NHTSA Front Impact Passenger:
5-Star (as per NHTSA data for similar W-body vehicles of the era)
IIHS Moderate Overlap Frontal Offset:
Good (refer to IIHS archives for specific model year ratings)
ABS:
Standard Anti-lock Braking System
Traction Control:
Available Traction Control System (TCS)
Airbags Front:
Driver and front passenger airbags
Airbags Side:
Available side-impact airbags (often optional)
Seatbelts:
Three-point seatbelts for all occupants, pretensioners for front seats.
Oil Change Interval:
Every 3,000-5,000 miles or as indicated by oil life monitor (refer to manual for specifics).
Engine Air Filter Replacement:
Every 15,000-30,000 miles or as needed.
Spark Plug Replacement:
Refer to manual; typically around 100,000 miles for recommended iridium plugs.
Transmission Fluid Change:
Every 30,000-60,000 miles (inspect condition). Check manual for specific recommendation.
Engine Oil Type:
SAE 5W-30 (Synthetic recommended for optimal performance and protection)
Engine Oil Capacity Quarts:
4.5 quarts (with filter)
Coolant Type:
Dex-Cool (GM 6043-M) Orange Long Life Antifreeze/Coolant
Intake Manifold Gasket Leaks:
Common on early 3800 V6 engines, especially the Series II. Look for coolant leaks.
Power Steering Pump Noise:
Can develop a whine or groan, often due to fluid leaks or pump wear.
Window Regulator Failure:
Common failure point for power windows, leading to windows not moving.
Alternator Failure:
Alternators can fail prematurely on some models.
Transmission Shifting Issues:
Can experience slipping or delayed engagement; proper fluid and filter changes are critical.
Buick Legacy:
Buick has a long-standing reputation for comfort, quietness, and reliable V6 engines, often positioned as an upscale offering within GM's portfolio.
Century Lineage:
The Century nameplate has been used by Buick since the 1930s, evolving through various platforms and iterations. The 2004 model is part of the final generation of the W-body Century, known for its comfortable ride and spacious interior.
Manufacturing Plant:
Assembled in Oshawa, Ontario, Canada.
Model Run:
1997-2005 (Third Generation W-body)
