28/09/2026
2014 VW Scirocco 1.4 TSI with 222,000+ km came in for our 90-minute hydrogen carbon clean.
Before the clean the vehicle had an engine light, previous misfire faults, exhaust smoke and O2 sensor heater faults.
After the clean, the customer immediately noticed the difference:
• Much better low-end power
• Sharper throttle response
• No more jerking
• Exhaust smoke gone
• Engine running noticeably smoother
The O2 heater faults did return, so we still recommended further electrical checks on the battery, wiring and sensor heater circuits.
Carbon cleaning doesn’t repair electrical faults — but when carbon buildup is affecting combustion and response, the difference can be very noticeable.
MCC 90-minute carbon clean includes diagnostics, treatment and a vehicle condition report.