Audi Workshop Service and Repair Manuals > A3 Mk1 > Power unit | Simos injection and ignition system (4-cylinder) | Mixture preparation system, electronic inj.,Gas | Checking Lambda control | Checking lambda probe and lambda control upstream of catalytic converter | Special tools and workshop equipment required

Special tools and workshop equipment required

t	-V.A.G 1526 A-

t	-V.A.G 1594 A-

t	-V.A.G 1598/31-

t	-VAS 5051- with -VAS 5051/1-

t	-V.A.G 1551- with -V.A.G 1551/3 A-

Note!

t	No faults stored in fault memory.

t	No leaks in exhaust system

t	Coolant temperature at least 80 °C ⇒ display group 004, display zone 3.