Failed MOT on emissions? Now PASSED – Vauxhall Astra 1.9 CDTi (2007 – 129,329 miles)

⚠️ MOT due or already failed on emissions? Get it diagnosed and cleaned up. This one failed first time around, but after our diagnostic consultation and Which? Trusted Traders approved Engine Carbon Clean has now PASSED 🎯

🚗 Here we have a Vauxhall Astra 1.9 CDTi (2007 – 129,329 miles) booked in along with 3 other vehicles. This Astra had recently failed the MOT on emissions.

🔎 Initial inspection found a significant bass noise from the engine indicating excessive vibration from carbon buildup. This vibration will cause over fuelling and increase emissions levels (plus reduce fuel economy).

💻 Initial diagnostics found error codes for the glow plug controller/relay and for an O2 sensor circuit.

📊 Live data showed it running a little rich. We ruled out the thermostat being the culprit (a cold running vehicle will create more emissions) as the temperature rose to 95°C and when tested dropped briefly to 81°C before swiftly recovering to 88°C.

👨‍🔧 On with the clean and the excessive bass note soon subsided as we proceeded and by the end was quiet, smooth and responsive again all ready for retest.

Failed MOT on emissions? Now PASSED - Vauxhall Astra 1.9 CDTi (2007 - 129,329 miles)
Failed MOT on emissions? Now PASSED - Vauxhall Astra 1.9 CDTi (2007 - 129,329 miles)
Failed MOT on emissions? Now PASSED - Vauxhall Astra 1.9 CDTi (2007 - 129,329 miles)

☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean
☑️ Safety first, fully insured and IMI Certified

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