🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Front disc brake caliper seized piston
💰 Estimated Repair Cost
$60 – $200 USD
Parts and labour estimate
🔧 Tools Required
Caliper wind-back tool, brake fluid
📋 Overview
The front disc brake calipers have single pistons that can seize from corrosion and lack of use. A seized piston applies constant brake pressure, causing dragging and rapid pad wear on one side.
🩺 Symptoms
- Brake dragging on one side
- car pulls to one side
- excessive heat from one front wheel
- uneven pad wear
🔍 Possible Causes
- Corroded caliper piston
- hardened caliper seals
- lack of regular use
🛠️ Diagnosis Steps
Feel front wheels for heat after a short drive — one significantly hotter confirms dragging.
✅ Most Confirmed Fix
Rebuild caliper with new seals and piston.
76% of users confirm this fix worked (18 reports)
🏷️ Parts Needed
Front caliper rebuild kit or reconditioned caliper
🔗 Other Mercedes-Benz W115 Faults
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