My motormanagement last week two times lightning
First time reset at garage and diagnostics say's TW CATALYST SYS-2B [P0430]. now after about 100 KM drive AGAIN!!!
I informed myself at the garage.
1. they say it is not labda sonde but katalyst
2. only there are two and they can not diagnostic which one it is
One is costing Euro 550 ex VAT ex montage
The other is Euro 890 ex VAT ex montage
now my question:
1 any advise is appreciated in avoiding/postponing above costs
2 if I had to change 1 each at the time which oned probabely should be replaced; pr should I go and replace both?
Awaiting your advise