A flickering check engine light with a rough idle on a Mercedes GLE V167 usually points to misfires. Here’s what to inspect first and how to keep your engine safe.
When your GLE V167 starts idling roughly and the check engine light flickers rather than glowing steadily, your engine is telling you it's experiencing intermittent misfires. That flicker is not a coincidence — it typically means unburned fuel is entering the exhaust, which can damage the catalytic converter if ignored for too long. Don’t panic, but do treat this with respect.
