BMW 325i Rough Idle

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

What are common reasons my BMW 325i has a rough idle?

While there are a variety of reasons your BMW 325i 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 BMW issue diagnosed by a professional

Find a high quality auto repair shop or dealer near you

Related BMW 325i Questions

See what others are asking about their BMW 325i. Get answers from RepairPal's community of auto experts and enthusiasts.
Once the car start it runs fine and after about 10 minutes it starts run rough and shuts off. changed icv, mass airfl...
My car idles rough and black smoke with high rpm .its a stick shift so it bucks at will due to bad rpm.

Related BMW 325i Problems

Find the most common driver-reported problems that are to blame when a BMW 325i has a rough idle.
The blower final stage fan resistor is known to fail. symptoms are the heater fan speed varies regardless of the sett...
BMW 325i Repairs and Prices
All costs based on RepairPal Fair Price Estimate™ averages. Actual prices may change depending on final diagnosis.

BMW 325i Rough Idle Repair Symptoms

A failing ignition coil can create several symptoms: Check engine light comes on Engine runs poorly or stall Increased emissions Reduced fuel economy Car won’t start I...Read More
When spark plugs fail, the engine will struggle. The check engine light will come on, and it may appear either solid or flashing. The driver would likely notice one or more of t...Read More