What Causes Abnormal Noise in the Mercedes-Benz 276 Engine?

1 Answers
AndresFitz
07/29/25 6:00pm
Possible causes of abnormal noise in the Mercedes-Benz 276 engine are as follows: 1. Engine idle speed is too high. 2. Improper adjustment of the throttle cable or throttle position sensor, resulting in excessively high main oil circuit pressure. 3. Delayed upshifting. 4. Cracked or loose vacuum hose of the vacuum-type throttle valve. 5. Faulty main oil circuit pressure regulator, causing excessively high main oil circuit pressure. 6. Damper piston stuck, unable to function as a damper. 7. Missing one-way valve steel ball, causing shift actuators (clutch or brake) to engage too quickly. 8. Slipping shift actuators. 9. Oil pressure solenoid valve not functioning. 10. Faulty computer.
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