🚗 Classic Fault — Mercedes-Benz (1968–1976)
W114 front wheel bearing worn — humming noise
💰 Estimated Repair Cost
$60 – $160 USD
Parts and labour estimate
🔧 Tools Required
Jack and axle stands, torque wrench, wheel bearing grease, bearing driver
📋 Overview
Front tapered roller bearings wear with age and mileage producing a characteristic humming noise that changes with steering input.
🩺 Symptoms
Humming or rumbling from front that changes when steering. Play in wheel when jacked up.
🔍 Possible Causes
Normal wear. Incorrect bearing preload adjustment. Lack of lubrication.
🛠️ Diagnosis Steps
Jack front corner. Grip wheel at 3 and 9 oclock positions and check for play. Grip at 12 and 6 for vertical play.
✅ Most Confirmed Fix
Replace bearing, pack with high-temp grease, adjust preload to specification.
82% of users confirm this fix worked (22 reports)
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