Traditional Culture Encyclopedia - The 24 Solar Terms - When Mercedes R320 starts, the steering wheel honks.
When Mercedes R320 starts, the steering wheel honks.
Why does the steering wheel whistle when the cold car starts?
1. hydraulic tappet: due to low oil pressure or wear of the hydraulic tappet itself, the hydraulic tappet enters the air and produces abnormal sound;
2. Valve clearance: the valve rocker arm is seriously worn, resulting in excessive valve clearance;
3. Dirty throttle: a dirty throttle caused by the continuous accumulation of sludge and carbon deposits;
4. Working sound of carbon canister solenoid valve: This is a normal sound and can be used continuously. If the noise is too loud, it is recommended to go to the 4S shop for inspection.
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