What are the reasons for the particularly high fuel consumption of Roewe W5 after several years of driving?
2 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.
