🚗 Classic Fault — Porsche 901/911 (1963–1989)
Porsche 911 rust in battery box and heater shelf
💰 Estimated Repair Cost
$500 – $3000 GBP
Parts and labour estimate
🔧 Tools Required
Welder, rust treatment
📋 Overview
The battery box area on early 911s (1965-1973) is a notorious rust trap. Water enters and causes hidden structural corrosion.
🩺 Symptoms
- Bubbling paint under front lid
- soft metal in battery area
- visible perforation
- battery acid corrosion
🔍 Possible Causes
- Water ingress through blocked drains
- battery acid damage
- age-related corrosion
🛠️ Diagnosis Steps
Remove battery and inspect box carefully — probe all surfaces with screwdriver.
✅ Most Confirmed Fix
Battery box repair and full underseal treatment
70% of users confirm this fix worked (16 reports)
🔗 Other Porsche 901/911 Faults
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