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Turbo Overboost and poor fuel economy - VW Passat TDI (2004 – 187,222 miles) - diagnostic and clean

Turbo Overboost and poor fuel economy – VW Passat TDI (2004 – 187,222 miles) – diagnostic and clean

💬 ‘Loads better, took it for a good run, can’t believe how much quieter it is. MPG, gone from 38 to 43 straight away, booked in for thermostat next Friday.’

⚠️ Running issues? Poor fuel economy? Get it checked out and cleaned up to identify underlying issues and get it running back to its best.

🚗 Here we have a VW Passat 1.9 TDI (2004 – 187,222 miles) booked in for diagnostic consultation and Engine Carbon Clean after it had logged turbo overboost codes when towing a caravan uphill.

🔎 Initial inspection found a lot of vibration in the engine bay, some wobble from engine mounts along with a heavy bass note from the carbon present.

💻 Initial diagnostics showed the historic overboost code in engine section, plus some other codes in other sections of the car related to A/C, etc.

📊 Live data monitoring showed the engine coolant maxing out at 82°C and dropping when tested – new #thermostat required. All other data looked within limits.

👨‍🔧 On with the clean and the engine soon smoothed out and really quietened down and by the end it was much quieter, smooth and responsive again.

Turbo Overboost and poor fuel economy - VW Passat TDI (2004 – 187,222 miles) - diagnostic and clean
Turbo Overboost and poor fuel economy - VW Passat TDI (2004 – 187,222 miles) - diagnostic and clean

🌐 f5e.cc/038161 👀

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