How to cancel the SOS malfunction in a Mercedes-Benz?

What is the difference between antifreeze and engine coolant?

Below are the specific differences between antifreeze and engine coolant: 1. Purpose: The function of coolant is to cool the engine, while antifreeze prevents the coolant from freezing in cold winter conditions when the vehicle is parked, thereby avoiding damage to the radiator and engine cylinder block or head. 2. Composition: The main component of coolant is CO2 in solid form, whereas antifreeze is primarily composed of 95% ethylene glycol. 3. Functionality: Antifreeze has anti-corrosion and anti-rust properties, providing protective effects against corrosion for cooling system components and preventing scale buildup. Coolant can prevent freezing in winter, as well as offer anti-corrosion and descaling functions.

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Where is the safest place to park a car during heavy rain and strong winds?

During heavy rain, it is recommended to park the car in an open area with higher terrain, as this is relatively safer. Water flows to lower ground, so avoid low-lying areas where water is most likely to accumulate and submerge the vehicle. You can also use bricks or other items to elevate the car, raising the chassis to make it less prone to water ingress. Places to avoid parking during heavy rain: Do not park under large trees. Heavy rain is often accompanied by strong winds, which can easily break tree branches. If they accidentally fall on the car, they may cause damage. Also, avoid parking near mountainsides, as heavy rain can easily trigger landslides, posing significant risks. If the car has already been submerged in water during heavy rain, here's what you should do: Do not attempt to start the vehicle, as any resulting issues will require out-of-pocket expenses. Take a photo of the scene, including the license plate number, as this can serve as evidence for insurance claims. Call the insurance company to report the incident—you must report it within 24 hours. Contact a rescue tow truck and inform the insurance company about the repair shop where the car will be taken so that the insurance personnel can inspect it.

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How to Use the Headlight Cleaning Function

Here are the specific steps to use the headlight cleaning function: 1. The headlight cleaning function is located on the right side of the steering wheel. Find the windshield wiper spray control lever. 2. Push the control lever forward with your hand, and the spray pump on the bumper will extend, spraying windshield washer fluid onto the headlights. The windshield wipers will also start working, and the spray nozzles on the hood will spray washer fluid onto the windshield. 3. Note that when using the headlight cleaning function, ensure the washer fluid reservoir has enough fluid. If the washer fluid level is below the required amount, the spray function will not work.

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What are the standards for replacing tires on in-yard vehicles?

Automotive tire replacement standards include tread deformation or carcass pattern detachment, tire bulging, and tread punctures exceeding 6mm. Tread deformation or carcass pattern detachment: This is a relatively severe tire issue. Since the tire carcass pattern has already detached, it should be replaced immediately for both aesthetic and safety reasons. Tire bulging: Tire bulging mainly occurs on the tire sidewall, primarily due to the tire violently hitting curbs, large rocks, speed bumps, etc., causing the tire cord layer to rupture. If a tire bulge persists for a long time, combined with high-temperature exposure and high-speed driving, it can easily lead to a tire blowout, which is extremely dangerous. Tread punctures exceeding 6mm: Small punctures on the tread can actually be repaired, but if the puncture exceeds 6mm, repairing becomes meaningless because the gap is too large. Even if repaired, there's no guarantee the tire won't fail again. Therefore, it's best to replace tires with punctures larger than 6mm. Tire sidewall exposing the cord layer: Exposure of the cord layer on the sidewall may result from scraping against hard objects while driving or from wheel rim pressure. Along with the exposed cord layer, there is usually significant cord breakage, so the tire should be replaced immediately.

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How to Check the Water Level in a Car Radiator?

You can check the water level in the radiator by unscrewing the radiator cap, but make sure to do this when the engine is cool. Never open the cap when the engine is hot, as it can cause injury. It is recommended to use antifreeze instead of water, as water can cause rust over time. The liquid level should be maintained between the MIN and MAX marks. If it falls below MIN, you need to add the same brand and specification of coolant, or replace all of it. Below is more information about car radiators: 1. The car radiator, also known as the heat exchanger, is a key component of the car's cooling system. It is an essential part of water-cooled engines, absorbing heat from the engine block. 2. The car radiator is mainly composed of the radiator core, water pipes, cooling fins, upper tank, and lower tank. The upper tank is located on the radiator and is connected to the lower tank via water pipes.

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What to Do When the Car Won't Start After Inserting the Key?

Here are the specific reasons and solutions for a car engine failing to start after inserting the key: 1. Carbon buildup in the car causing difficulty in ignition. This is often accompanied by slight shaking at idle, which can be resolved by cleaning the throttle body and fuel injectors. 2. Weak spark plug ignition energy. If spark plugs are not replaced after their maintenance cycle, their ignition energy may degrade severely, leading to misfires. 3. Insufficient fuel rail low pressure. Low fuel pressure in the fuel rail can directly cause the engine to require a second ignition. Specifically, check the fuel pressure regulator, fuel pump, fuel filter, and internal fuel lines. 4. Dead battery. You may need to jump-start the car using another vehicle or battery. 5. Incorrect engine timing. If the engine timing does not match the engine, or if the alternator belt is replaced on certain engine models, it may cause the timing to skip, resulting in difficulty starting.

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How to cancel the SOS malfunction in a Mercedes-Benz?

What is the difference between antifreeze and engine coolant?

Where is the safest place to park a car during heavy rain and strong winds?

How to Use the Headlight Cleaning Function

What are the standards for replacing tires on in-yard vehicles?

How to Check the Water Level in a Car Radiator?

What to Do When the Car Won't Start After Inserting the Key?

How often should the transmission fluid in a Magotan be changed?

Should You Brake or Accelerate When Changing Lanes?

What Happens If You Add Salt to Engine Oil?

Should the Oil Drain Plug Washer Be Replaced?