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What Causes the Strange Noise in a Mercedes-Benz Car?

2 Answers

LaSamantha

07/30/25 2:03am

Strange noises in a Mercedes-Benz car may be related to factors such as the fuel system not supplying fuel or supplying fuel abnormally. Below is an introduction to relevant information about Mercedes-Benz: 1. Mercedes-Benz SAM: The control unit, also known as the Signal Acquisition and Actuation Module. If the SAM malfunctions, components such as headlights, turn signals, and windshield wipers cannot be controlled while driving, posing safety hazards. 2. Mercedes-Benz: A German automotive brand, considered one of the most successful premium car brands in the world. It is renowned for its perfect technical level, stringent quality standards, innovative capabilities, and a series of classic coupe models. The Mercedes-Benz three-pointed star has become one of the most famous automotive and brand logos globally. Mercedes-Benz cars not only have unparalleled quality but also a comprehensive range of models, currently mainly producing A-Class cars, C-Class cars (mid-range sedans and coupes), E-Class cars (high-end sedans and coupes), S-Class cars (luxury sedans and coupes), and G-Class cars (SUV off-road vehicles).

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LeDaniel

08/15/25 8:01am

I've been repairing Mercedes-Benz cars for almost ten years, and abnormal noises are really quite common. The main causes are usually in a few areas: loose interior plastic parts are the most frequent, especially in cars that have been driven for several years—the clips on the dashboard and door panels age and start creaking. Another common issue is the air conditioning blower bearing lacking lubrication or having leaves stuck inside, causing a whining sound when the fan is turned on. Then there’s the clunking noise when driving over speed bumps due to worn or cracked suspension bushings. Last time, I even encountered a case where a customer was driven crazy by a noise, only to find a screw stuck under the passenger floor mat. Everyone, please don’t try to disassemble things randomly, especially parts that require specialized tools. Many DIY attempts end up causing even more noises. The safest bet is to take it to an authorized dealer and run a diagnostic scan for fault codes.

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