Mercedes-Benz ML350 engine wire harness and sensor contamination issue costing consumers thousands on Mercedes-Benz ML350

Some Mercedes-Benz ML350 owners report experiencing severe issues related to engine wire harness and sensor contamination, which can lead to significant repair costs. These owners have noted problems such as cracked insulation and faulty wiring in the brake light harness, often attributed to manufacturing defects and unprotected wiring. In certain cases, oil leaks from components like the camshaft adjuster solenoids have resulted in oil entering the engine wiring harness, causing additional damage. This contamination has led to failures of critical components, including the engine control unit (ECU), injectors, and oxygen sensors, resulting in costly repairs that can reach thousands of dollars. The financial burden of these issues underscores the importance of addressing the engine wire harness and sensor contamination problems promptly.