1995 Audi A6 Quattro Q&A
1995 Audi A6 Quattro Question: Catalytic Converter
My car used to rattle a lot especially on a cold winter day. The rattling sound which dissipates when the car warms up, was caused by a faulty catalytic converter (I was told my mechanic). Now that I moved to SoCal, the car rarely rattles. Do I still need to replace the converters especially if it passes the smog test? - rz17pm
If engine performance is normal and your 1995 Audi A6 will pass its smog inspection I see no reason to replace the catalytic converter at this time. What the future holds, no one can say. - Jim Taddei
Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.
...e oxygen sensors was removed when my engine light came on. Is the engine light now due to the catalytic converter or the oxygen sensor? How much does it cost to replace the driver catalytic converter?
While working on the automatic transmission, the catalytic converters were removed. The converters rattled when shaken and some of the catalyst fell out the pipe....
Once I get into my car and start it. My computer shows the engine light was a steady ... but now it has been blinking for a week or so. Can you halp me and explain whats wrong with my car?? Thank Y...
Warning light w/dealer stating the CAT converter ($1400)replacement. Both brakes done & shop says both sensors bad($750)Help?