Mercedes-Benz P1999: Idle Speed Above or Below Limits

Is your scanner showing Mercedes-Benz P1999?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

OVERVIEW

Severity

High

DIY Difficulty Level

Advanced

Repair Cost

$100-$1500

Can I Still Drive?

What Does The Mercedes-Benz P1999 Code Mean?

Engine idle and running condition affected. Idle speed with warm engine is above the permissible range limit.

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