【Car Knowledge】Car Maintenance FAQ
As someone who receives daily inquiries from car owners and personally visits garages large and small in Hong Kong, I'm deeply aware of the realities of car repairs in Hong Kong and the most common problems owners encounter. Repairing a car in Hong Kong requires more than just identifying issues; it also requires choosing the right garage, reading quotes, and avoiding scams. Below, I've compiled a Q&A on frequently asked questions about car repairs in a comprehensive and down-to-earth manner, ensuring it's useful for both beginners and veterans alike!
Q1: Why doesn't my car start? What are the common causes?
Editor's answer:
Hong Kong's weather is humid and the temperature fluctuates greatly, so vehicle failure to start is one of the most common repairs. Common reasons include:
- Dead battery : not driving for a long time, forgetting to turn off the lights, aging battery (usually needs to be replaced every 3-4 years).
- Spark plug wear : Aging spark plugs can cause the engine to fail to ignite.
- Starter motor problem : If there is a "clunking" sound when starting but the engine cannot be pushed forward, the starter motor may be faulty.
- Fuel pump failure : No "pumping" sound can be heard, or the fuel pump is damaged and cannot supply fuel.
- Anti-theft system problems : smart lock failure, car key has no power, and the chip cannot be sensed.
Editor's Tips :
If your car won't start, first check the battery and key for charge, and then listen for any unusual sounds. When you find a garage, be sure to explain your symptoms so they can inspect it.
Q2: There are "creaking" and "squeaking" sounds on the car body. What is the problem?
Editor's answer:
The roads in Hong Kong are narrow and winding, with frequent speed bumps and bad roads. "Strange noise" is one of the most frequently asked questions by car owners.
- Shock absorber aging/damage : There are unusual noises when driving on bad roads or going over bumps. Aging of shock absorber rubber sleeves, connecting rods, and ball heads is common.
- Loose suspension parts : such as loose or damaged rocker arms, stabilizer bars, and rubber sleeves.
- Brake pad wear : If there is a "squeaking" sound when you apply the brakes, it may be that the brake pads have been used up.
- The rubber edges of the doors and trunk are aging : the body structure is loose and resonant sounds occur when driving.
Editor's Tips :
Check early and don’t ignore small noises, otherwise small problems will turn into major repairs.
Q3: Why isn't the air conditioner freezing? Is there a strange smell?
Editor's answer:
Hong Kong is scorching hot in the summer, and air conditioning problems are very common.
- Insufficient refrigerant/leakage : The air conditioner’s inability to cool sufficiently is mostly due to refrigerant leakage.
- Air conditioner compressor failure : If the compressor breaks down, there will be no air conditioning at all.
- Filter/condenser is clogged : If the air conditioning has an odor or the wind speed is weak, the filter is usually dirty.
- Water accumulation/mold in the water pan : If the air conditioner has a musty smell, it may be due to moisture and mold.
Editor's Tips :
Clean the air conditioning filter regularly and inspect the air conditioning system annually. Don't just add refrigerant frequently; identify the source of the leak.
Q4: The Check Engine light is on. What should I do?
Editor's answer:
The engine light is on, which may not be a big deal, but it should not be taken lightly.
- Possible causes : sensor failure, exhaust system problem, fuel system problem, ignition system problem, etc.
- Solution : Go to the garage immediately and use a computer scan (OBD-II) to read the fault code, and then take appropriate measures.
Editor's Tips :
Don't reset the light yourself; failing to address the underlying issue only creates hidden risks. Sometimes, it's just a dirty oxygen sensor, which can be easily fixed.
Q5: Is the garage repair quote expensive? How do you distinguish between genuine damage and "tampering"?
Editor's answer:
Hong Kong is awash with garages, and quotes vary widely. To avoid being tricked:
- Ask for quotes from several garages and compare prices and repair items.
- Ask the taxi company to clearly list the repair details and parts brands , and don't just look at the total price.
- Ask clearly whether there is a maintenance period or parts maintenance .
- You can request to have the old part returned to you for inspection to ensure that it has really been replaced.
- If you are not in a hurry, you can consider using second-hand parts/aftermarket parts , which are more than half the price.
Editor's Tips :
Although old-fashioned garages and agency garages are more expensive, they guarantee confidence.
Q6: Why is the brake not strong enough/there is a strange noise when I press the brake?
Editor's answer:
- Brake pad wear : the most common problem. If the brake pad is thin, it should be replaced immediately.
- Disc deformation/damage : The steering wheel vibrates and makes a rattling sound when braking.
- Insufficient/aging brake fluid : The brakes feel "soft" or "soft".
- Brake calipers are rusted/stuck : There will be a metallic grinding sound.
Editor's Tips :
Check the brake system regularly every year and change the brake fluid every two years. Don't be tempted by low-quality brake pads.
Q7: Why do tires wear evenly? When should they be replaced?
Editor's answer:
- Incorrect wheel alignment : commonly seen when the vehicle is driven over a curb or on a bad road.
- Aging of shock absorbers : If the car body is not straight, one side will wear out faster.
- Insufficient/too high air pressure : The sides or the middle will grind particularly quickly.
- Tire aging : Even with infrequent driving, tire rubber can harden and crack.
Editor's Tips :
- The tire needs to be replaced if the tread depth is less than 1.6mm (there is an indicator line).
- It is best to check tires every year and replace them after 5 years even if they are not worn.
Q8: Why is the engine overheating? Is the radiator burnt out?
Editor's answer:
- Insufficient water in the water tank/leakage : the most common causes include burst water tank and aging pipes.
- Water pump failure : Water cannot circulate and the engine overheats immediately.
- Fan is broken/fan fuse is blown : no fan cooling.
- Scale/rust inside the water tank : water flow is blocked.
Editor's Tips :
If you see any abnormal water temperature gauge, stop and check immediately. Do not force the car to start, otherwise the water tank will burst and the engine will be damaged in minutes.
Q9: Why is the shifting so rough and jerky? What should I pay attention to when using an automatic or manual transmission?
Editor's answer:
- Automatic transmission oil aging : Poor oil quality will cause transmission shifting problems.
- The gearbox itself is damaged : gears are damaged and oil seals are leaking.
- The manual transmission clutch plate is worn : there is a "slipping" feeling when changing gears.
- Transmission computer/sensor problem : Modern cars have many electronic controls, and abnormalities will cause "stuttering".
Editor's Tips :
Automatic transmission fluid should be changed every 30,000-50,000 kilometers. If you encounter any transmission issues, have it checked by a professional garage as soon as possible.
Q10: Can I choose a garage in Hong Kong? Can I choose a neighborhood agent?
Editor's answer:
- Garage agency : high confidence, high fees, original parts, and long maintenance period.
- Neighborhood garages : Affordable prices, varying workmanship, some only replace aftermarket parts, and may not have computer diagnostics.
- Professional brand garages : such as Bosch Car Service, etc., are certified and charge medium to high fees.
- Introduction by friends : The most reliable way, you will feel more confident if you get an introduction from someone you know.
Editor's Tips :
- If the car is of high value or within the maintenance period, it is recommended to return it to the agent.
- For routine repairs and simple replacements, you can consider a reputable neighborhood garage.
- For any quote, you must ask clearly and clearly about the actual price. Don't be afraid to ask a few more questions.
Q11: How often should a car be serviced? Are there any essential maintenance tasks?
Editor's answer:
- Basic maintenance : every 6,000-10,000 kilometers or every six months (depending on the model and driving habits).
- Must-do items : change engine oil, oil filter, check water tank, transmission fluid, brake fluid, spark plug, air conditioning filter, and tire pressure.
- Major maintenance : Brake fluid, coolant, transmission fluid, spark plugs, belts, etc. should be replaced every 2-3 years.
Editor's Tips :
Regular maintenance can prevent small problems from turning into big disasters, and keeping a low maintenance record can help increase the value of your used car.
Q12: How can I protect myself during car repairs? Are there any "shady shops" I should be wary of?
Editor's answer:
- To choose a reputable garage , you can read reviews online and ask friends around you.
- Request to clearly list the quotation and repair order to avoid price increase.
- Inspect the repairs immediately and do not delay in filing a complaint.
- Keep old documents and receipts so that you have evidence to refer to in case of any problems in the future.
- Traps of black shops : using fake parts, overstating the numbers, making bad claims without actually reporting them, and charging unreasonable wages.
Editor's Tips :
If you have doubts about the garage's maintenance methods, you can report it to the Consumer Council, Transport Department, Car Owners Association, etc.
Q13: Are there any "DIY" repairs that you can do yourself? Do you recommend doing it yourself?
Editor's answer:
Suitable for DIY:
- Repair tires, replace wipers, replace light bulbs, fill water tank, replace air conditioning filter, replace car battery (simple type).
DIY is not recommended: - Transmission repair, engine disassembly, brake system, computer programming, air conditioning refrigerant filling, oil line repair.
Editor's Tips :
If you are not an experienced person, please do not dismantle the house randomly, otherwise "small problems will turn into big losses."
Summary:
While Hong Kong offers a wide variety of car repair options, knowing how to ask questions, check quotes, and choose the right garage is half the battle won. Don't be afraid to ask questions, compare prices , and always keep written records of every repair to protect yourself. If you encounter any problems, feel free to leave us a message. Our practical experience will help you avoid pitfalls, save money, and stay safe!
If you want to know the details of a certain type of car maintenance, feel free to ask the editor!
