🚗 Classic Fault — Mercedes-Benz W115 (1968–1976)
Distributor shaft bush worn — timing wander
💰 Estimated Repair Cost
$40 – $150 USD
Parts and labour estimate
🔧 Tools Required
Internal puller, press
📋 Overview
The distributor shaft bush wears making the shaft wobble, causing timing to wander unpredictably. Points gap changes each revolution, making accurate timing impossible.
🩺 Symptoms
- Timing cannot be set accurately
- rough running despite correct points gap
- dwell angle fluctuates
🔍 Possible Causes
- Worn distributor shaft bush
- worn distributor shaft
🛠️ Diagnosis Steps
With cap removed, hold rotor and check for sideways play. Any play confirms bush wear.
✅ Most Confirmed Fix
Replace distributor shaft bush or fit reconditioned distributor.
68% of users confirm this fix worked (14 reports)
🏷️ Parts Needed
Distributor shaft bush; complete reconditioned distributor
🔗 Other Mercedes-Benz W115 Faults
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