What Causes a Car to Fail to Start After Prolonged Inactivity?

1 Answers
RicardoMarie
07/29/25 1:43pm
The reason a car fails to start after prolonged inactivity is due to battery depletion and gasoline deterioration. For long-term parking, it is necessary to start the car periodically or disconnect the black negative cable of the battery to prevent complete battery discharge. Reasons why a car cannot operate after prolonged inactivity: Battery depletion: The battery cannot power the starter motor, ignition coil, or fuel pump. In this case, an external battery is needed to jump-start the car. Gasoline deterioration: Gasoline has a shelf life of about one month. After three to four months, the gasoline actually evaporates and deteriorates, requiring the engine oil to be replaced. Precautions for long-term car inactivity: Pay attention to the "four fluids": The "four fluids" mainly refer to engine oil, brake fluid, coolant, and windshield washer fluid. Among these, engine oil is the most critical. Even if unopened, engine oil undergoes slow oxidation. Starting a car after prolonged inactivity is a significant challenge. When a car is left unused for a long time, most of the engine oil drains back to the oil pan, leaving the upper parts severely lacking oil film protection. During the restart process, the engine experiences severe dry friction, which is when the most wear occurs. Therefore, it is especially important to monitor the condition of the engine oil. Ensure sufficient battery charge: Even if the car is not used, the battery slowly discharges. If left inactive for too long, the battery may deplete to the point where it cannot start the car. If the car is left unused for more than two months, it is best to disconnect the negative terminal of the battery (only the negative terminal; the positive terminal does not need to be touched). Chassis precautions: First, maintain proper tire pressure. To prevent localized tire deformation during prolonged parking, the car should be parked on a flat surface, and the tire pressure should be slightly increased—around 2.8 BAR for both front and rear tires. Second, a thorough chassis inspection is essential. Check for oil leaks in areas such as the CV joints, transmission, shock absorbers, and oil pan. If leaks are found, they should be addressed before long-term parking. Rust prevention is critical: Rust prevention mainly applies to damaged paint on the car body. Even minor paint damage, if left untreated, can lead to rust spreading and potentially corroding through the metal. If rust spots are present, they should be covered with toothpaste or a touch-up pen to prevent further expansion. This is an important step before long-term parking.
Was this review help?
16
4
Share
More Forum Discussions

Should a left turn on an overpass be made before or after crossing the bridge?

A left turn on an overpass should be made after crossing the bridge. Here are some precautions to take when making turns while driving: 1. Wide turning radius: When making a left turn, try to turn as widely as possible. To avoid hazards such as obstruction or collision, aim to turn into a farther point. 2. Check the rearview mirror: Always check the rearview mirror before turning to ensure there is no one on the side or behind you before making the turn. 3. Watch for blind spots: Novice drivers often focus only on what's ahead or to the left, neglecting blind spots during turns, which can lead to hitting the curb or causing a scrape. Always check for obstacles below the rearview mirror, and if necessary, open the door to take a look before turning.
5
1
Share

Does Mercedes-Benz Intelligent Connectivity Require Renewal?

Mercedes-Benz Intelligent Connectivity requires renewal upon expiration. The Mercedes-Benz Intelligent Connectivity service allows online map searches, recommendations for dining and entertainment, and the downloading of certain apps. Additionally, there are three buttons on the overhead control panel: the red one in the middle is for SOS, which can manually initiate an emergency call or automatically activate in the event of a collision. The button on the left is for Mercedes-Benz roadside assistance, and the one on the right is for customer service consultation. More details are as follows: 1. The defining feature of intelligent connected vehicles is their intelligence. They are equipped with advanced sensors, controllers, actuators, and other devices built upon conventional vehicles, enabling intelligent information exchange with people, vehicles, and roads through onboard sensing systems and information terminals. This grants the vehicle intelligent environmental perception capabilities. 2. For example, the first intelligent electric SUV showcased by Byton at this year's Beijing Auto Show, the Byton M-Byte concept car, employs Level 3 autonomous driving technology, capable of independently performing nearly all driving operations. 3. Furthermore, the onboard large screen better fulfills the needs of human-vehicle interaction, providing users with a range of lifestyle services, including video conferences and health monitoring. The biggest difference from traditional vehicles is that riding in such a car is no longer just about transportation.
9
5
Share

What does engine runaway mean?

Diesel engine runaway refers to a malfunction where the diesel engine's speed becomes uncontrollable and continues to increase. The following is relevant information about engines: 1. Concept: An engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. 2. Classification: Internal combustion engines, external combustion engines (where fuel burns outside the engine), gas turbines, and jet engines.
12
4
Share

Can the engine be replaced?

Yes, but it must be replaced with the same model of engine. The 4S shop needs to issue a certificate, and then you need to go to the vehicle management office to change the engine number. Below is some relevant information about engines: 1. Concept: An engine (Engine) is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. 2. Classification: Internal combustion engines, external combustion engines, external combustion engines mean that the fuel burns outside the engine, gas turbines, jet engines.
4
1
Share

How to Deal with a Hard Clutch?

Clutch being very hard may be caused by faults in the clutch pressure plate, clutch disc, or release bearing. Below is an analysis of the reasons for a hard clutch: 1. Damaged cable: A damaged clutch cable increases frictional resistance, making the clutch pedal heavier. It is recommended to replace it directly rather than lubricating it with oil. 2. Worn clutch disc: The clutch disc is sandwiched between the pressure plate and the flywheel, with the diaphragm spring of the pressure plate providing the clamping force. 3. Greasing the release bearing seat: There is not much friction between the release bearing and its seat, so additional lubrication is unnecessary. The gap between the release bearing and its seat is relatively small, and grease is sticky, which can actually increase resistance. Especially when the clutch disc is working, it generates a lot of dust that sticks to the grease, making it stickier and harder, which in turn makes the clutch heavier.
15
2
Share

How to Clean Corroded Bright Trim?

The cleaning methods for corroded bright trim are as follows: 1. Toothpaste: Although toothpaste is effective, it struggles with stubborn rust spots. 2. Toilet cleaner: Using toilet cleaner requires much less effort than toothpaste, and the actual effect is quite good, with the chrome bright trim basically restoring its shine. 3. WD-40 Multi-Use Product: WD-40 has strong surface affinity and permeability for metals, penetrating into the metal's pores to 100% eliminate moisture and humidity, forming an extremely thin and dense protective film to isolate humidity and air, effectively solving the "inside-out" rust problem of metals. 4. Carburetor cleaner: Carburetor cleaner can remove stubborn stains such as oil stains and adhesive stains. However, it should be noted that it is highly corrosive and can also affect the car's paint, so be careful not to spray it on the car's paint during operation.
18
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.