🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Perished rubber fuel hoses — fire risk
💰 Estimated Repair Cost
$20 – $60 USD
Parts and labour estimate
🔧 Tools Required
Hose clip pliers, fuel-safe container
📋 Overview
All rubber fuel hoses are now 50 years old even if original. Perished fuel hoses weep fuel onto hot engine components and represent a serious fire risk.
🩺 Symptoms
- Petrol smell from engine bay
- visible wet patches on hoses
- hoses feel hard or cracked
- fire risk
🔍 Possible Causes
- Aged rubber hoses
- wrong grade rubber
- deterioration from ethanol in modern fuel
🛠️ Diagnosis Steps
Inspect all rubber fuel hoses carefully. Feel for hardness, cracks. Any doubt — replace immediately.
✅ Most Confirmed Fix
Replace all rubber fuel hoses with ethanol-compatible fuel hose.
88% of users confirm this fix worked (35 reports)
🏷️ Parts Needed
Fuel-grade rubber hose — correct bore sizes; hose clips
🔗 Other Mercedes-Benz W115 Faults
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