P306d Peugeot ^new^ Jun 2026

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: Loose or corroded connectors at the throttle body or MAP sensor are common culprits for intermittent "coherence" errors. P306D-22 coherence problem - Page 2 - French Car Forum p306d peugeot

: Ensure there is no carbon buildup preventing the throttle plate from moving smoothly. P306D-22 coherence problem - French Car Forum Have a different Peugeot fault code

Peugeot utilized the robust XUD and later the HDi series engines in these vehicles. P306D-22 coherence problem - Page 2 - French

You're looking for a review of the Peugeot 306D!

| Repair Type | DIY Cost | Professional Cost | |-------------|----------|-------------------| | Replace one glow plug | $30–$50 | $150–$300 | | Replace harness connector | $10–$20 | $80–$150 | | Replace glow plug module | $80–$150 | $200–$400 | | ECU software update | N/A | $100–$200 |

The 306D has a reputation for being fuel-efficient, with an average consumption of around 5.5-6.5 liters per 100 km (42-36 mpg) in city driving and 4.5-5.5 liters per 100 km (52-43 mpg) on the highway.