🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Rear light cluster seal failure — water in lights
💰 Estimated Repair Cost
$20 – $60 USD
Parts and labour estimate
🔧 Tools Required
Trim tools
📋 Overview
The seals around the rear light clusters fail with age. Water enters the housing causing corrosion, bulb failure, and tarnished reflectors.
🩺 Symptoms
- Condensation or water inside rear lights
- bulbs failing frequently
- chrome reflector tarnished
🔍 Possible Causes
- Failed rear light cluster seal
- cracked lens
🛠️ Diagnosis Steps
Remove rear light clusters. Inspect seals and lens condition.
✅ Most Confirmed Fix
Replace lens seals. Clean and dry internals. Apply dielectric grease to bulb holders.
81% of users confirm this fix worked (23 reports)
🔗 Other Mercedes-Benz W115 Faults
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