🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Flexible brake hose internal deterioration
💰 Estimated Repair Cost
$30 – $80 USD
Parts and labour estimate
🔧 Tools Required
Brake line wrenches, brake fluid
📋 Overview
Flexible rubber brake hoses deteriorate internally acting as a one-way valve — pressure applies the brakes normally but trapped pressure prevents proper release, causing dragging.
🩺 Symptoms
- Brake dragging after releasing pedal
- wheel gets hot after short drive
- pressure releases when hose disconnected
🔍 Possible Causes
Deteriorated flexible brake hose inner liner
🛠️ Diagnosis Steps
Loosen union nut on hose while wheel is dragging. If wheel releases when union loosened, hose is trapping pressure.
✅ Most Confirmed Fix
Replace all flexible brake hoses as a set.
84% of users confirm this fix worked (27 reports)
🏷️ Parts Needed
Flexible brake hose set
🔗 Other Mercedes-Benz W115 Faults
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