🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Rear spring hanger rust — structural weakness
💰 Estimated Repair Cost
$200 – $800 USD
Parts and labour estimate
🔧 Tools Required
Welder, angle grinder, chassis inspection tools
📋 Overview
The rear spring hangers corrode internally and can become paper thin. This is a MOT failure point and a safety concern. Excessively corroded hangers can fail suddenly under load.
🩺 Symptoms
- Rust visible at rear spring mount points
- uneven rear ride height
- creaking from rear
- MOT failure for rust
🔍 Possible Causes
- Corrosion in rear spring hanger sections
- underbody protection failure
🛠️ Diagnosis Steps
Inspect spring hangers carefully from below with wire brush. Probe with screwdriver — any perforation is serious.
✅ Most Confirmed Fix
Weld in new spring hanger sections. Apply heavy-duty underbody protection.
60% of users confirm this fix worked (10 reports)
🔗 Other Mercedes-Benz W115 Faults
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