️Thermostats play a key role in getting your engine running at the right temperature. Why is this important? A cold running engine will be inefficient – causing poor fuel economy and increased emissions (plus increased carbon buildup).
Here we have a VW Transporter (2005 – 134, 788 miles) booked in for diagnostic consultation and Engine Carbon Clean.
ℹ️ The vehicle was running OK, but with the MOT due soon and having had a FAILURE on emissions last year wanted it checking over and cleaning up.
Initial inspection found no obvious issues in the engine bay and the engine running fairly well for the age.
Initial diagnostics showed minimal code history or active codes.
Live data monitoring identified the culprit. The coolant temperature was only getting up to 75°C when tested and dropped into the 60's when the heating was turned on – new thermostat required.
On with the clean and it soon smoothed out, quietened down and by the end it was quiet, smooth and responsive again. The owner can now get a new thermostat fitted prior to MOT.
☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean
☑️ Safety first, fully insured and IMI Certified
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