🚗 Classic Fault — Mercedes-Benz W108/W109 (1965–1972)
W108 automatic transmission selector shaft seal leak
💰 Estimated Repair Cost
$20 – $80 GBP
Parts and labour estimate
🔧 Tools Required
ATF drain tools, seal driver
📋 Overview
The selector shaft seal on the W108 automatic gearbox weeps transmission fluid, contaminating the underfloor.
🩺 Symptoms
- ATF on floor under gearbox selector area
- fluid level dropping
- smell of burnt ATF
🔍 Possible Causes
- Worn selector shaft seal
- overfilled gearbox
- worn selector detent
🛠️ Diagnosis Steps
Clean area and identify leak source. ATF is red — distinguishes it from engine or diff oil.
✅ Most Confirmed Fix
Selector shaft seal replacement
85% of users confirm this fix worked (12 reports)
🔗 Other Mercedes-Benz W108/W109 Faults
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