2026-08-20 · 5 min read
Audi A5 Carbon Cleaning Malaysia
A5 2.0 TFSI: direct injection — carbon on intake valves at 60,000–80,000 km. Symptoms: rough cold idle, hesitation above 3,000 RPM, reduced power. Walnut blast: RM 900–1,400. S5 3.0T supercharged: port-injected — NO carbon concern. B9 A5 2.0 TFSI Gen 3: direct + port injection — much less carbon buildup.
A5 2.0 TFSI: direct injection — carbon on intake valves at 60,000–80,000 km. Symptoms: rough cold idle, hesitation above 3,000 RPM, reduced power. Walnut blast: RM 900–1,400. S5 3.0T supercharged: port-injected — NO carbon concern. B9 A5 2.0 TFSI Gen 3: direct + port injection — much less carbon buildup.