What are the reasons for the particularly high fuel consumption of Roewe W5 after several years of driving?
4 Answers
The reasons for the particularly high fuel consumption of Roewe W5 after several years of driving are the heavy body, tire wear, and abnormal brakes. Check the tire pressure and wear condition. Checking the tires comes first because tires are relatively easy to inspect. If the tires are underinflated, fuel consumption will increase. If it’s not a pressure issue, check the degree of tire wear. If the tires are severely worn, slipping will frequently occur, increasing fuel consumption. Solution: If the tires are underinflated, refill them to the correct pressure. If the tires are severely worn, replace them with new ones, preferably changing both sides together. Check the braking system. If abnormal noises are heard from the wheels during driving or startup, promptly inspect the bearings and braking system for faults. If the wheels do not rotate normally, it will affect the speed, thereby increasing fuel consumption. Solution: Inspect the braking system and resolve any corresponding faults.
Well, I think this is a pretty common issue. My Roewe W5’s fuel consumption noticeably surged after about five years of driving. At first, I thought it was a fuel quality problem, but later I found out it was due to carbon buildup in the engine causing incomplete combustion. Driving long-term in the city with frequent starts and stops puts extra strain on the engine, and the spark plugs had aged without timely replacement, affecting ignition efficiency. Worn tires increased rolling resistance, and insufficient tire pressure also added to fuel consumption—I once found the pressure was only 1.8 bar when it should normally be around 2.2. A dirty air filter that wasn’t replaced restricted airflow, forcing the engine to work harder, naturally increasing fuel usage. I recommend regularly cleaning the fuel injectors, replacing filters, and checking sensors for faults. Otherwise, head to a 4S shop or auto repair center for a check-up before minor issues escalate. Paying attention to these details can help stabilize fuel consumption.
My Roewe W5 is the family's main car. After about four years of driving, the fuel consumption suddenly increased, making every refueling session painful. Although my daily commute isn't long, the engine may have accumulated issues from prolonged low-speed driving, such as carbon buildup clogging the fuel injectors and obstructed fuel lines. The ECU defaults to injecting more fuel to compensate, causing fuel consumption to skyrocket. Additionally, the engine oil has aged, changing its viscosity and reducing lubrication effectiveness, making the engine work harder and consume more fuel. The tires, unchanged for three years, have shallow treads, increasing rolling resistance—even small bumps make the car feel unstable. I recommend checking tire pressure monthly to maintain standard values, changing the engine oil on schedule with synthetic oil for extended lifespan, and cleaning the intake system and fuel lines. Simple maintenance saves both hassle and money—don't neglect it like I did at first.
I encountered high fuel consumption after driving the Roewe W5 for three years. The main culprit was carbon deposits, which clogged the engine and affected combustion. The old spark plugs didn't ignite well, forcing me to press the accelerator more. Worn tires reduced grip, making fuel consumption noticeably worse at high speeds. I sought help from a car repair friend who checked if the air filter was dirty and needed replacement, and if the engine oil was too thin and needed attention. Simply put, regular maintenance is key—don't ignore these issues by driving carelessly. Addressing problems early saves fuel and ensures safety.
