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Is it easy to replace the wiring harness of the Mercedes-Benz oil pump?

2 Answers

LorenzoAnn

07/23/25 7:58pm

Not very easy to replace. It is recommended to go to a car repair shop for assistance. Below are specific details about Beijing Benz: Historical Background: Beijing Benz Automotive Co., Ltd. (referred to as Beijing Benz) is a joint venture established by Beijing Automotive Group Co., Ltd., Daimler AG, and Daimler Greater China Ltd. It was officially founded on August 8, 2005. The Beijing Benz factory is located in the Beijing Economic-Technological Development Area. Main Models: The primary models under Beijing Benz include the Mercedes-Benz A-Class, Mercedes-Benz GLA, Mercedes-Benz C-Class, Mercedes-Benz GLC, Mercedes-Benz E-Class, Mercedes-Benz E-Class New Energy, and Mercedes-Benz EQC. Special Features: It has an annual production capacity of 100,000 vehicles. As one of China's most advanced world-class automotive manufacturers, BBAC defines new benchmarks for modern automotive enterprises with its five major characteristics: an international management team, outstanding products, strict quality control, excellent ecological environment, and highly skilled technical workers.

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OKaden

08/10/25 5:54pm

Personally, I think replacing the oil pump wiring harness on a Mercedes is no easy task—it requires some professional expertise. You’ll need to disconnect the battery to avoid electric shock, open the engine hood, and carefully remove the covering components before you can access the wiring harness connector. Mercedes models are designed with precision, and the harness is usually hidden. If you’re unfamiliar with the layout, it’s easy to accidentally damage other wires or disrupt the sealing ring, leading to oil leaks. Additionally, Mercedes’ electronic systems are complex, and after replacement, you might need a diagnostic tool to reset the ECU module; otherwise, the oil pump may malfunction. I’ve seen several cases where DIY beginners struggled for hours only to make mistakes, ultimately requiring costly repairs. For peace of mind, it’s safer to take it directly to a dealership or professional repair shop—though pricier, it saves hassle and prevents future issues. Regular inspections of the oil system and wiring aging can also help avoid frequent replacements, making it more cost-effective in the long run.

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