The 2008 Cadillac STS, a mid-size luxury sedan, represents Cadillac's attempt to compete with established European rivals. Produced from 2005 to 2011, the STS offered a blend of American luxury and performance. Key trims included the base, V6 Luxury, V8 Luxury, and Platinum. Pricing ranged from around $40,000 new to significantly lower figures on the used market. It stood out with its sharp styling and available Northstar V8 engine, attracting buyers seeking a distinctive luxury sedan.
The Good
The 2008 Cadillac STS offered a balance of strengths. Performance from the available V8 provided a thrilling driving experience (emotional appeal). Its spacious cabin and comfortable ride catered to luxury needs (practical/emotional). While not class-leading, its reliability was decent. On the used market, the STS presents strong value compared to its original MSRP (practical).
The Bad
Potential weaknesses of the 2008 Cadillac STS include its somewhat dated interior design and less-than-stellar fuel economy, particularly with the V8 engine. Watch out for potential issues with the Northstar V8, including head gasket failures, and ensure the electronic systems are functioning correctly. Also, check for proper maintenance records.
2008 Cadillac STS: Quick Overview
Here's a summary of the 2008 Cadillac STS specs:
- Engine Options:
- 3.6L V6: 302 hp
- 4.6L Northstar V8: 320 hp
- Horsepower:
- V6: 302 hp @ 6300 rpm
- V8: 320 hp @ 6400 rpm
- Fuel Economy (EPA Estimated):
- V6: 17 mpg city / 26 mpg highway
- V8: 15 mpg city / 24 mpg highway
- 0-60 Times:
- V6: Approximately 6.4 seconds
- V8: Approximately 6.0 seconds
- Towing Capacity: Not recommended or specified by Cadillac.
- Trim-Level Features:
- Base: Leather seats, dual-zone climate control, keyless entry, power windows/locks.
- Luxury (V6 & V8): Adds features like premium sound system, heated/cooled front seats, sunroof, and upgraded interior trim.
- Platinum: Top-of-the-line, including unique exterior trim, upgraded leather, adaptive cruise control, and advanced safety features.
2008 Cadillac STS Specifications
Vehicle Information
| Year | 2008 |
| Make | Cadillac |
| Model | STS |
| Trim | - |
| Style | All-Wheel Drive V-6 |
| Type | Sedan |
| Category | Mid-Size Car |
Manufacturing Details
| Made In | United States |
| Manufacturing City | LANSING - GRAND RIVER |
Dimensions
| Doors | 4-Door |
| Curb Weight | 3973 pounds |
| Gross Vehicle Weight Rating | - |
| Overall Height | 57.60 inches |
| Overall Length | 196.70 inches |
| Overall Width | 72.60 inches |
| Wheelbase Length | 116.40 inches |
| Standard Seating | 5 |
Engine & Performance
| Engine | 3.6-L V-6 DOHC 24V |
| Engine Size | 3.6L |
| Engine Cylinders | 6 |
| Transmission | 6-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 6-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $43,215 |
| Invoice Price | $40,406 |
| Delivery Charges | $775 |
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Analysis
What Problems Does the 2008 Cadillac STS Have?
Frequently reported problems for the 2008 Cadillac STS include issues with the Northstar V8 engine, particularly head gasket failures. This is a significant concern that can lead to costly repairs. Other reported problems involve the electronic systems, such as the navigation system, climate control, and various sensors. Some owners have reported issues with the transmission, including rough shifting or premature failure.
Recalls for the 2008 STS were relatively limited, but it's essential to check the NHTSA website for any outstanding recalls related to your specific VIN.
Long-term reliability concerns center around the engine and electronics. Regular maintenance, including oil changes, coolant flushes, and transmission services, is crucial to mitigate potential problems. Check for any signs of coolant leaks or overheating, which could indicate a head gasket issue. Also, be aware of potential battery drain issues and ensure the charging system is functioning correctly. Early model years (2005-2007) experienced more reported electronic glitches compared to the 2008 model, but it's still worth inspecting all electronic features before purchasing.
Recalls for the 2008 STS were relatively limited, but it's essential to check the NHTSA website for any outstanding recalls related to your specific VIN.
Long-term reliability concerns center around the engine and electronics. Regular maintenance, including oil changes, coolant flushes, and transmission services, is crucial to mitigate potential problems. Check for any signs of coolant leaks or overheating, which could indicate a head gasket issue. Also, be aware of potential battery drain issues and ensure the charging system is functioning correctly. Early model years (2005-2007) experienced more reported electronic glitches compared to the 2008 model, but it's still worth inspecting all electronic features before purchasing.
How long will the 2008 Cadillac STS last?
Given the age of the 2008 Cadillac STS, many examples on the used market will have accumulated significant mileage. With proper maintenance, owners report these vehicles lasting well over 150,000 miles and upwards of 15-20 years. However, long-term durability hinges heavily on maintenance habits. Neglecting oil changes or addressing minor issues can significantly shorten its lifespan.
Over time, weaknesses tend to appear in the form of increased component failures (alternator, starter, water pump), suspension wear, and continuing electronic glitches. The leather upholstery and interior trim may also show signs of wear and tear.
Over time, weaknesses tend to appear in the form of increased component failures (alternator, starter, water pump), suspension wear, and continuing electronic glitches. The leather upholstery and interior trim may also show signs of wear and tear.
What Technology & Safety Features are Included?
The 2008 Cadillac STS offered a respectable array of built-in tech and safety features for its time. Standard features included a premium Bose audio system, dual-zone automatic climate control, and OnStar. Higher trims added features like a navigation system with voice control, heated and cooled front seats, and a sunroof.
Driver-assistance features were limited compared to modern cars, but available options included adaptive cruise control, rear parking sensors, and StabiliTrak stability control. Safety features comprised anti-lock brakes (ABS), traction control, and a suite of airbags, including front, side, and curtain airbags.
Optional features included premium leather upholstery, a wood trim package, and upgraded wheels. The Platinum edition featured unique exterior and interior trim, as well as advanced safety features like side blind zone alert.
Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) indicate that the 2008 Cadillac STS generally performed well in frontal and side crash tests. However, it's recommended to consult the NHTSA website for specific ratings and details related to particular crash scenarios.
Driver-assistance features were limited compared to modern cars, but available options included adaptive cruise control, rear parking sensors, and StabiliTrak stability control. Safety features comprised anti-lock brakes (ABS), traction control, and a suite of airbags, including front, side, and curtain airbags.
Optional features included premium leather upholstery, a wood trim package, and upgraded wheels. The Platinum edition featured unique exterior and interior trim, as well as advanced safety features like side blind zone alert.
Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) indicate that the 2008 Cadillac STS generally performed well in frontal and side crash tests. However, it's recommended to consult the NHTSA website for specific ratings and details related to particular crash scenarios.
What Colors Options are Available?
Exterior Colors
Black Raven
Gold Mist
Infrared
Liquid Amethyst
Platinum Ice
Radiant Bronze
Red Jewel Tintcoat
Silver Diamond Tricoat
Stealth Gray
White Diamond Tricoat
Interior Colors
Light Cashmere
Ebony
Dark Charcoal
2008 Cadillac STS Prices and Market Value
When new, the 2008 Cadillac STS ranged from approximately $40,000 to $55,000 depending on the trim level and options. Current used market prices typically range from $5,000 to $12,000, varying based on condition, mileage, and location.
The STS has experienced significant depreciation due to its age and the general depreciation curve for luxury sedans. Factors affecting resale value include the vehicle's condition (mechanical and cosmetic), mileage, service history, and trim level. V8 models and Platinum editions generally command higher prices. Well-maintained examples with low mileage and a clean title retain the most value.
The STS has experienced significant depreciation due to its age and the general depreciation curve for luxury sedans. Factors affecting resale value include the vehicle's condition (mechanical and cosmetic), mileage, service history, and trim level. V8 models and Platinum editions generally command higher prices. Well-maintained examples with low mileage and a clean title retain the most value.
2008 Cadillac STS Cost of Ownership
The 2008 Cadillac STS can be considered moderately costly to own. Insurance costs are typical for a luxury sedan. Fuel costs, especially for V8 models, are higher than average. Maintenance and repair costs can be significant, particularly if the Northstar V8 requires extensive work. Parts may be more expensive than those for mainstream vehicles. Overall, expect higher-than-average long-term ownership costs due to fuel consumption, potential repairs, and the premium nature of the vehicle.
2008 Cadillac STS Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
17.00 gallons
City Mileage
17 miles/gallon
Highway Mileage
26 miles/gallon
2008 Cadillac STS Safety Rating
NHTSA
IIHS
2008 Cadillac STS Recalls & Defects
Exterior Lighting
Recall date
2008-03-11
Recall no.
08v108000
Source
NHTSA
Summary
GM IS Recalling 4,586 MY 2008 Cadillac STS and Sts-V Passenger Vehicles FOR Failing TO Conform TO THE Requirements OF Federal Motor Vehicle Safety Standard NO. 138, 'tire Pressure Monitoring Systems' (Tpms). THE Standard Requires AN Indication TO THE Driver FOR Certain Tpms Malfunctions. When THE System Detects A Malfunction, THE Low Tire Warning Light Should Flash FOR About ONE Minute and Then Stay ON THE Remainder OF THE Ignition Cycle. A Driver Information Center Message Will Also BE Displayed ON THE Instrument Panel.
Consequence
These Indications OF A System Malfunction DO NOT Work. Premature Tire Failure Could Result IN A Loss OF Control OF THE Vehicle, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Reprogram THE Remote Control Door Lock Receiver Module Free OF Charge. THE Recall Began ON March 18, 2008. Owners MAY Contact Cadillac AT 1-800-982-2339 or Through Their Website AT <A Href=http://Www.gmownercenter.com>http://www.gmownercenter.com</a> .
Notes
GM Recall NO. 70340.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
2008 Cadillac STS Warranty
Basic
Original warranty
48 months / 50,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
60 months / 100,000 miles
Estimated remaining
Expired
Rust
Original warranty
72 months / 100,000 miles
Estimated remaining
Expired
2008 Cadillac STS Insurance
Insurance for a 2008 Cadillac STS is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2008 Cadillac STS Compare to Other Sedan?
The 2008 Cadillac STS competed with luxury sedans like the BMW 5 Series, Mercedes-Benz E-Class, and Lexus GS. In terms of performance, the STS V8 offered competitive power but lacked the handling finesse of the BMW. Features were generally comparable, although the German rivals often had more advanced technology options. Reliability was a weak point for the STS compared to the Lexus GS, which is renowned for its reliability. Used market prices for the STS are often lower than its German rivals, making it an attractive value proposition.
Alternatives to the STS include:
Alternatives to the STS include:
- **Lexus GS:** More reliable, smoother ride.
- **BMW 5 Series:** Sportier handling, more refined interior.
- **Mercedes-Benz E-Class:** A more luxurious experience, known for safety.
- **Acura TL:** A less expensive but still well-equipped and reliable option.
Ranks #1833 Sedan
| 1 | 2023 Toyota Camry | (5.0★) |
| 2 | 2023 Honda Accord | (0.0★) |
| 3 | 2023 Lexus ES | (0.0★) |
| 4 | 2024 Subaru Legacy | (5.0★) |
| 5 | 2022 Mazda MX-30 | (4.0★) |
| 6 | 2024 BMW M3 | (0.0★) |
| 7 | 2023 Ford Mustang | (5.0★) |
| 8 | 2023 Mercedes-Benz AMG GT | (0.0★) |
| 9 | 2023 Audi A3 | (0.0★) |
| 10 | 2023 Chevrolet Camaro | (5.0★) |
| 11 | 2023 Hyundai Elantra Hybrid | (0.0★) |
| 12 | 2023 Nissan Altima | (4.0★) |
| 1833 | 2008 Cadillac STS | (0.0★) |
Final Verdict: Is the 2008 Cadillac STS a Good Sedan?
The 2008 Cadillac STS is ideal for buyers seeking a used luxury sedan with a distinctive American style and available V8 power, all at a reasonable price point. It's worth buying *used* if you find a well-maintained example with documented service history and a pre-purchase inspection to assess potential issues, especially with the engine. The V6 models offer better fuel economy and may be more reliable than the V8. If you prioritize reliability above all else, consider alternatives like the Lexus GS. The Platinum trim offers more features, but the price premium may not be worth it considering its age. Be prepared for potentially higher maintenance costs compared to mainstream vehicles.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.