🚗 Classic Fault — Mercedes-Benz W113 (1963–1971)
W113 280SL M130 idle roughness — points and timing
💰 Estimated Repair Cost
$15 – $60 GBP
Parts and labour estimate
🔧 Tools Required
Feeler gauge, timing light
📋 Overview
The M130 twin-cam engine requires precise points setting and timing. Worn points cause rough idle and poor performance.
🩺 Symptoms
- Rough idle
- hesitation at low throttle
- poor economy
- misfiring at idle
🔍 Possible Causes
- Worn points
- incorrect timing
- dirty jets in mechanical injection pump
🛠️ Diagnosis Steps
Set points gap to spec. Set timing with strobe. Check injection pump timing if still rough.
✅ Most Confirmed Fix
Points, condenser and timing service
86% of users confirm this fix worked (21 reports)
🔗 Other Mercedes-Benz W113 Faults
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