Potential Problems:
* Flat Tires: The weight of the car can cause flat spots on the tires, especially if they're not properly inflated. This can lead to uneven wear and vibrations once you start driving again.
* Dead Battery: Even a relatively new battery will likely die after a year of inactivity. The self-discharge rate of a battery means it will eventually lose its charge.
* Rust: Moisture and exposure to the elements can accelerate rust formation, particularly in areas with high humidity. This is especially problematic for areas with exposed metal.
* Fluid Degradation: Fluids like engine oil, brake fluid, coolant, and power steering fluid can degrade over time, losing their effectiveness and potentially damaging components.
* Rodent Damage: Rodents may nest in the engine compartment, chewing on wiring, hoses, and other components.
* Pest Infestation: Other insects and pests may also infest the vehicle, leading to similar damage as rodents.
* Flat Spots on Tires: Sitting for an extended period can cause tires to develop flat spots, even if they were properly inflated.
* Brake Issues: Brake calipers can seize from lack of use, leading to sticking brakes or uneven wear.
* Fuel System Issues: Gas can degrade over time, causing potential fuel system problems. Ethanol in the fuel can attract moisture and clog the fuel system.
Maintenance Before Storing (Ideally):
* Full tank of gas: A full tank minimizes condensation inside the tank. Consider adding a fuel stabilizer to prevent gas degradation.
* Battery Disconnect: Disconnect the negative terminal of the battery to prevent parasitic drain. Consider using a trickle charger or battery maintainer.
* Tire Inflation: Inflate tires to the maximum pressure recommended on the tire sidewall (check your owner's manual).
* Car Wash: Clean the car thoroughly, inside and out, to remove dirt and debris that can contribute to rust and damage.
* Fluid Check: Check all fluid levels (oil, coolant, brake fluid, power steering fluid, transmission fluid) and top off as needed.
* Parking Location: Park on a level surface in a dry, covered area if possible. Consider using a car cover.
Maintenance After Sitting for a Year:
* Battery Check/Replacement: Inspect the battery. It likely needs charging or replacement.
* Tire Inspection: Check tire pressure and look for flat spots. If flat spots are present, drive slowly for a short distance to help restore tire shape (avoid aggressive driving). Rotate tires to distribute any uneven wear.
* Fluid Check and Change: Check all fluid levels. Consider changing the oil, brake fluid, and coolant depending on the age and condition.
* Engine Inspection: Look for any signs of rodent damage or other issues in the engine compartment.
* Brake System Check: Test the brakes for proper function and even wear.
* Fuel System Check: Add fresh gas.
* Test Drive: Start the car and let it run for a while before driving, checking for any unusual sounds or behavior. Start with a short drive and gradually increase mileage.
Important Considerations:
* Vehicle Type and Age: Older cars and those with certain mechanical issues are more likely to suffer from extended periods of inactivity.
* Climate: Hot, humid climates accelerate degradation more quickly than colder, drier climates.
It's crucial to address these potential problems to ensure the safe and reliable operation of your vehicle after a year of sitting. If you're not comfortable performing these checks yourself, take it to a trusted mechanic for a pre-drive inspection.
