🚗 Classic Fault — Volkswagen (1983–1992)
Golf Mk2 brake servo vacuum hose perishing
💰 Estimated Repair Cost
$8 – $30 GBP
Parts and labour estimate
🔧 Tools Required
Nil special tools
📋 Overview
The rubber vacuum hose to the brake servo perishes and collapses internally, reducing servo assistance.
🩺 Symptoms
- Heavy, unassisted feeling brake pedal
- hissing sound when brakes applied
- servo check valve noisy
🔍 Possible Causes
- Collapsed internal bore of vacuum hose
- failed non-return valve
- failed servo diaphragm
🛠️ Diagnosis Steps
Remove hose and check bore is fully open — collapsed hoses look fine externally. Test servo function with engine off
✅ Most Confirmed Fix
Vacuum hose replacement
91% of users confirm this fix worked (44 reports)
🩺 Related Symptoms
🔗 Other Volkswagen Faults
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