‘Drives nice and sweet, I could say I can feel car is sharper quicker response. Big thanks! Yes I’m happy, I wasn’t expecting a lot but after 15mile drive I could say it is sharper smoother drives perfect now ‘
Here we have a VW Passat CC 2.0 TDI (2010 – 79,404 miles) booked in for diagnostics and Engine Carbon Clean after the owner was concerned regarding recent declining fuel economy and more frequent DPF regeneration.
Initial inspection found little of note with no obvious rattles, leaks and although a bass note was present it was running pretty nicely given the mileage.
Initial diagnostics found little of note so we documented and cleared what was present for the owner.
Live data initially showed the vehicle running cool after its drive before we arrived with temperature on our arrival around 78°C. With bonnet down and internal fans off we managed to get it to a healthy 95°C maximum. With fans turned on it dropped to 81°C. Not perfect, but not as bad as some we have seen recently. As a 10 year old thermostat it was doing pretty well, but an option to replace for the owner should the MPG deteriorate further. DPF data all looked OK with all temperature sensors working fine and DPF data looking good.
On with the clean and the bass note soon dissipated and the response returned.
ℹ️ With the weather turning colder the vehicle will take longer to warm up. This will inevitably impact fuel economy and DPF regeneration if performing shorter journeys. We put the owners mind at rest that all was working OK and talked him through how the regeneration process worked and the impact of temperature, journey length etc. has on the regeneration process.
☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean
☑️ Safety first, fully insured and IMI Certified
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