🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Battery tray corrosion reaching adjacent structure
💰 Estimated Repair Cost
$50 – $300 USD
Parts and labour estimate
🔧 Tools Required
Angle grinder, rust treatment, welding equipment
📋 Overview
The battery tray corrodes from battery acid fumes and rain ingress. This area is often ignored during restoration and severe corrosion can reach adjacent structural metalwork.
🩺 Symptoms
- Visible corrosion under battery
- paint bubbling in battery area
- battery sitting at an angle
🔍 Possible Causes
- Battery acid fumes
- rain ingress
- original underbody protection absent
🛠️ Diagnosis Steps
Remove battery. Inspect tray and surrounding area thoroughly.
✅ Most Confirmed Fix
Remove tray. Treat or replace. Apply heavy underbody protection. Fit battery acid mat.
71% of users confirm this fix worked (14 reports)
🔗 Other Mercedes-Benz W115 Faults
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