What to Do When Left Turn is Green but Straight is Red?

How Often Should the Coolant in a Mercedes-Benz E-Class Be Replaced?

The coolant in a Mercedes-Benz E-Class generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference interval. For commercial vehicles with higher mileage, the replacement interval should be shorter. Since driving conditions vary for each vehicle, the replacement should be based on actual usage. Check the coolant level regularly and top it up if it is low. If suspended particles, sediment, or discoloration are observed in the coolant, replace it immediately and clean the system. Coolant Replacement Method: Before a complete coolant replacement, conduct a thorough inspection to check for leaks or cracks in all pipes, with a focus on the five-way hose. The five-way hose, named for its five connecting interfaces, distributes coolant to different parts of the car. If any leakage is detected in this section, replace the hose or reseal the connections as needed. Drain the old coolant and flush the system with clean water. Add water to the coolant reservoir and continuously flush the engine cooling system. Then, start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the drained water may appear slightly pinkish. Continue flushing until the water runs clear. Remember to disconnect the heater hose and drain the water from the heater core. After draining for about an hour, add new coolant through the radiator hose to allow quick flow into the radiator. Then, fill the coolant reservoir with another bottle of coolant until it is nearly full. Run the engine for about 10 minutes. As air is purged from the cooling system, the coolant level will drop. Top up the coolant to the "MAXT" mark on the reservoir.

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How to Operate an Automatic Transmission Car Correctly?

Correct operation method for starting an automatic transmission car: 1. After sitting in the driver's seat, the driver does not need to press the brake pedal, just press the start button once to turn on the ACC indicator, then press it again to initiate the vehicle self-check (for models with one-button start function). 2. Depress the brake pedal and press the start button once more to ignite the engine; release the ignition switch immediately after the engine starts. Holding it down may cause gear grinding between the starter and engine flywheel, shortening the starter's lifespan. 3. Release the foot brake and allow the engine to warm up for 1-3 minutes. The instrument panel has a C-F coolant temperature gauge - when the pointer reaches the middle position, it indicates the coolant has reached 90°C, meaning warm-up is complete. 4. Depress the foot brake again, shift to D gear, and release the parking brake (for electronic parking brakes, simply press the button briefly). Before moving, check the vehicle surroundings carefully. Due to blind spots, use the horn and turn signals to alert nearby vehicles and pedestrians. 5. Gradually release the foot brake while gently applying throttle to complete the starting procedure.

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How to Tow a Car with Electronic Gear Shift?

First, check the car's battery level. If there is power, press and hold the power button for 10 seconds to unlock the gear shift when the vehicle is fully powered on. The N gear is the neutral position, allowing the car to be towed. Without pressing the brake, long-press the ignition button for a security check, then release the handbrake and shift to N gear. After completion, the engine needs to be turned off. Newer car models may have a mechanical gear shift button, usually located near the gear lever and labeled as SHIFT. Press and hold this button to shift into N gear. For older car models, remove the ashtray to reveal a small cover. Use a small flat-head screwdriver to pry it open, then press and hold downward to shift gears.

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What to Do When the Electric Oil Pump Fails to Pump Oil?

Check the oil level height. If the oil level is too low, promptly add the appropriate type of oil as required. Incorrect oil grade can cause the oil viscosity to be too high or too low. Select the appropriate oil grade according to the season. Generally, use higher-grade oil in summer and lower-grade oil in winter. If the added oil is unclean, it may clog the oil filter or suction pipe. Regularly clean the oil filter and pipelines, and ensure the added oil is filtered to maintain cleanliness. Check if the sealing ring at the oil suction port is damaged. Also, inspect the suction pipeline and self-tightening oil seal. If there is air leakage due to damage, take sealing measures or replace the sealing components.

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What to Do When the Battery Gets Wet?

If the battery gets wet, do not charge the electric vehicle. You must dry the battery thoroughly and check whether reconfiguration and electrolyte replenishment are needed. If there is significant water ingress, pour out and wipe dry all the water inside the battery. Then, clean it with distilled water or high-purity water, and add electrolyte to adjust the density. You can choose to use a qualified battery repair machine to directly repair the battery. If the battery is damaged beyond repair due to water ingress and cannot be used, you can only replace it with a new battery at a repair shop.

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How to Deal with Yellowing Plastic Screens on Electric Cars?

Pour an appropriate amount of cleaning powder on the surface, scrub with a damp cloth, then rinse with clean water to remove any traces of the cleaning powder. Squeeze toothpaste onto a toothbrush that is no longer used for brushing teeth, then carefully scrub the plastic item with the toothbrush, as toothpaste contains abrasives. Use cotton to apply an appropriate amount of alcohol for wiping, then polish the surface of the plastic item with a flannel cloth dipped in toothpaste. After wiping with alcohol, rinse thoroughly with clean water. Dilute the specialized bleach, soak the plastic item for a period of time, and finally rinse it with clean water. Take a small amount of tea leaves, wrap them in gauze, then dip in an appropriate amount of cooking oil to wipe. Finally, rinse with a small amount of dishwashing liquid to clean thoroughly.

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What to Do When Left Turn is Green but Straight is Red?

How Often Should the Coolant in a Mercedes-Benz E-Class Be Replaced?

How to Operate an Automatic Transmission Car Correctly?

How to Tow a Car with Electronic Gear Shift?

What to Do When the Electric Oil Pump Fails to Pump Oil?

What to Do When the Battery Gets Wet?

How to Deal with Yellowing Plastic Screens on Electric Cars?

Why Can't You Make Phone Calls While Refueling Your Car?

How many digits does a VIN typically have?

What to Do When a Tire Suddenly Blows Out While Driving?

How to Turn on the Cold Air in an Electric Car's Air Conditioning?