A flickering check engine light and rough idle in your Touareg III usually points to misfires or vacuum leaks. Here’s what to check first and when to stop driving.
Why Does the Light Flicker?
When your Touareg III's check engine light flickers rather than stays steady, it's usually telling you that the engine is misfiring intermittently. A rough idle alongside the flicker often means the misfire is happening at low RPM, when the engine is most sensitive to air-fuel mixture and ignition issues. Don't panic — this is a warning, not necessarily a breakdown — but it deserves attention soon.
