Mercedes-Benz ML350 4MATIC Rough Idle

Learn if it's a simple fix or time to seek out a trusted technician.

What are common reasons my Mercedes-Benz ML350 4MATIC has a rough idle?

While there are a variety of reasons your Mercedes-Benz ML350 4MATIC has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
of the time it's
Vacuum Leak
of the time it's
Spark Plugs
of the time it's
Ignition Coil

Get your Mercedes-Benz issue diagnosed by a professional

Find a high quality auto repair shop or dealer near you

Related Mercedes-Benz ML350 4MATIC Problems

Find the most common driver-reported problems that are to blame when a Mercedes-Benz ML350 4MATIC has a rough idle.
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going ...
Mercedes-Benz ML350 4MATIC Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

Mercedes-Benz ML350 4MATIC Rough Idle Repair Symptoms

A failing ignition coil will create misfires in the engine, and lead to hesitation, extreme power loss, engine stalling, poor fuel mileage, and illumination of the check engine ...Read More
As we discussed, spark plugs are necessary for any gasoline engine to run. When they fail, the engine is in a constant state of attempting to ignite air and fuel, but cannot. Th...Read More