Roewe i5 Exhaust Pipe Abnormal Noise?
3 Answers
SAIC Roewe i5 exhaust pipe resonance abnormal noise causes are as follows: 1. Three-way catalytic converter blockage. The function of the three-way catalytic converter is to purify exhaust gases while reducing noise. For different vehicles, the three-way catalytic converters vary in length, thickness, and the density of internal filters, depending on the exhaust flow. Regular cleaning of the three-way catalytic converter can eliminate exhaust pipe abnormal noise. 2. Exhaust pipe aging. The exhaust pipe and engine are connected by a flexible joint. It is possible that after long-term use, the flexible joint may be damaged or aged. Secondly, the exhaust pipe and chassis are connected by several rubber rings, which should be checked for damage or aging issues. Finally, there are seals between the exhaust pipe and flexible joint, and between the flexible joint and the engine, which should be inspected for damage.
I'm an auto mechanic with 10 years of experience, frequently working on cars like the Roewe i5. The most common cause of exhaust pipe rattling is loose or worn rubber hangers—those brackets holding the exhaust tend to age, causing a "clanging" noise over bumps. Bolts may also loosen or rust if not replaced promptly. The Roewe i5's rear exhaust design is simple, making its underside prone to water accumulation and rust. I recommend lifting the car to inspect the hangers and connection points. Avoid parking in standing water routinely, and check the undercarriage during annual maintenance. Don't ignore loud noises—I've seen minor issues escalate to detached exhaust systems, compromising safety and costing big repairs.
I've been driving the Roewe i5 for two years. Last year, the chassis kept making metallic clanking sounds during acceleration, which scared me into thinking it was falling apart. When I crawled under the car to check, I found the hanger had cracked and the screws were loose. I bought a new hanger online for just a few dozen yuan, had it replaced at a small shop, and the noise was gone. Now I regularly clean the exhaust outlet to prevent water accumulation and rust. This car is economical but has small parts that aren't very durable. Fixing strange noises early saves trouble, and if it's really bad, just go to the 4S shop—the cost isn't high.
