🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Boot floor rust — water ingress through seal
💰 Estimated Repair Cost
$80 – $500 USD
Parts and labour estimate
🔧 Tools Required
Rust treatment tools, welding equipment if severe
📋 Overview
Water ingress past the boot seal leads to rust forming on the boot floor, hidden under the spare wheel or mat. On the W115 the boot floor is a structural area.
🩺 Symptoms
- Wet carpet or mat in boot
- musty smell from boot
- rust visible when mat lifted
🔍 Possible Causes
- Failed boot lid seal
- blocked boot drain holes
🛠️ Diagnosis Steps
Remove spare wheel and mat. Inspect floor carefully. Probe any suspect areas.
✅ Most Confirmed Fix
Dry area. Treat surface rust. Weld in new metal if perforated. Renew boot seal.
64% of users confirm this fix worked (12 reports)
🔗 Other Mercedes-Benz W115 Faults
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