🚗 Classic Fault — Porsche 901/911 (1963–1989)
Porsche 911 3.2 Carrera DME relay failure — no start
💰 Estimated Repair Cost
$15 – $40 GBP
Parts and labour estimate
🔧 Tools Required
Nil special tools
📋 Overview
The DME relay on the 3.2 Carrera is a known failure point, causing a no-start condition. The relay is cheap but the diagnosis is often missed.
🩺 Symptoms
- Engine cranks but will not start
- no fuel pump prime sound
- starts with relay tapped or wiggled
🔍 Possible Causes
- Failed DME relay
- failed fuel pump
- corroded relay socket
🛠️ Diagnosis Steps
Tap DME relay while cranking — if engine fires, relay is failing. Relay is behind driver seat on 3.2.
✅ Most Confirmed Fix
DME relay replacement
92% of users confirm this fix worked (41 reports)
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