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2008 Cadillac XLR

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By Research the Car 4 min read

The 2008 Cadillac XLR is a luxury roadster that offers a blend of style and performance. It was only offered with one engine option: a 4.6L Northstar V8 producing 320 horsepower and 310 lb-ft of torque. This engine was paired with a 6-speed automatic transmission. The XLR is praised for its unique retractable hardtop, comfortable ride, and luxurious interior, but it has also received criticism for its relatively small trunk space, less sporty handling compared to rivals, and some reliability concerns.

Engine

4.6L Northstar V8

  • Oil Leaks
    • Description/Symptoms: Oil leaks are a common issue, often stemming from the valve cover gaskets, oil pan gasket, or rear main seal. Symptoms include visible oil drips under the car, the smell of burning oil, and low oil levels.
    • Solution: Replacing the leaking gasket or seal is the most common solution.
    • Estimated Cost to Fix: $200 - $1000+ depending on the location and severity of the leak.
    • Recalls: None Found
  • Cooling System Issues
    • Description/Symptoms: The Northstar engine is known for potential issues with the cooling system, including coolant leaks from the water pump, radiator, or hoses. Overheating can occur if these leaks are not addressed promptly.
    • Solution: Replacing the faulty water pump, radiator, or hoses. Regular coolant flushes and inspections are recommended.
    • Estimated Cost to Fix: $150 - $800+ depending on the component needing replacement.
    • Recalls: None Found

Transmission

6-Speed Automatic (6L80)

  • Harsh Shifting/Hesitation
    • Description/Symptoms: Some owners have reported experiencing harsh or delayed shifting, especially between certain gears. Hesitation when accelerating can also occur.
    • Solution: A transmission fluid flush and filter change may resolve minor issues. More severe cases may require valve body repair or replacement, or a complete transmission rebuild.
    • Estimated Cost to Fix: $150 - $300 (fluid/filter), $500 - $1500+ (valve body), $2500 - $5000+ (rebuild/replacement).
    • Recalls: None Found

Suspension

  • Magnetic Ride Control (MRC) System Issues
    • Description/Symptoms: The XLR is equipped with Magnetic Ride Control (MRC) for enhanced ride quality. Problems can arise with the MRC shocks, leading to a loss of damping, a bouncy ride, and error messages on the dashboard.
    • Solution: Replacing the faulty MRC shocks.
    • Estimated Cost to Fix: $400 - $1000+ per shock.
    • Recalls: None Found

Electrical

  • Retractable Hardtop Malfunctions
    • Description/Symptoms: The retractable hardtop is a complex system that can experience various malfunctions. These include the top getting stuck in the open or closed position, failure to operate, and error messages related to the top mechanism.
    • Solution: Diagnosing the specific cause of the malfunction (sensors, actuators, hydraulic pump, etc.) and replacing the faulty component.
    • Estimated Cost to Fix: $200 - $2000+ depending on the complexity of the issue.
    • Recalls: None Found
  • Battery Drain
    • Description/Symptoms: Some owners have reported issues with excessive battery drain, even when the vehicle is not in use. This can lead to a dead battery and difficulty starting the car.
    • Solution: Identifying and addressing the source of the parasitic drain (e.g., faulty module, aftermarket accessories, etc.).
    • Estimated Cost to Fix: $100 - $500+ depending on the source of the drain.
    • Recalls: None Found

Exterior

  • Retractable Hardtop Seal Leaks
    • Description/Symptoms: Water leaks around the retractable hardtop seals, especially during rain or car washes, are a fairly common complaint.
    • Solution: Replacing or adjusting the seals.
    • Estimated Cost to Fix: $100 - $500+

Interior

  • Navigation/Infotainment System Issues
    • Description/Symptoms: The navigation and infotainment system can experience problems, including screen malfunctions, software glitches, and failure to read CDs/DVDs.
    • Solution: Replacing or repairing the head unit. Software updates may resolve some issues.
    • Estimated Cost to Fix: $200 - $1000+
  • Seat Heater Malfunctions
    • Description/Symptoms: Failure of the seat heaters to function properly.
    • Solution: Replacing the heating elements or control module.
    • Estimated Cost to Fix: $150 - $500+ per seat.

Summary

The 2008 Cadillac XLR presents a mixed bag. While offering luxury and unique styling, it is susceptible to several common issues. Engine oil leaks and cooling system problems, particularly within the Northstar V8, can be costly to address. The retractable hardtop and Magnetic Ride Control, while desirable features, are also potential sources of expensive repairs. Electrical glitches and interior component failures add to the ownership considerations. Overall, potential buyers should be aware of these potential problems and factor in repair costs when considering purchasing a 2008 Cadillac XLR. Due to the age of the vehicle, it is also important to note that the cost of certain repairs may be inflated due to the relative scarcity of available parts.

Cadillac, XLR
Cadillac XLR 2008
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