Need Help?

2012 BMW 3-Series 328i 4dr Sedan RWD SULEV

2012 BMW 3-Series
Trim Info:
Rear Wheel Drive, Sedan, Compact Cars
23 mpg city / 34 mpg hwy
Other Trims
Do you own this car?
Estimated Mileage
Enter current mileage for most
accurate info about this vehicle

Track Your Service Records
Get Recall Alerts
Get Updated Value Estimates on Your Car.
back to question list

Ask the Community

Ask Our Auto Mechanics

October 31, 2012, 5:54 pm

Collin S

Question: Should I replace control arms or just bushings?

When I hit the brakes, there is a bump and the car shifts forward a bit. A mechanic at a shop noticed this when I went in to get an inspection sticker and said it had to do with the control arms, but I'm not sure if I should replace the entire control arms or just the bushings.

November 9, 2012, 3:26 pm

Ron W
Expert Mechanic

You need to have the suspension checked. Sometimes the bushing is replaceable, and sometimes you can only get the whole control arm. But you really need to isolate where the noise is exactly coming from before you buy anything. Otherwise you may replace a lot of parts and not fix the problem.

0/0 users found this helpful.

Ask our panel of certified auto mechanics a question. We pay for their advice so you don't have to

My Auto Score

See the free AutoCheck score

Meet The Experts
Kim Perrin
Kim Perrin is our resident mechanic here at DriverSide. Kim worked as…
Tyler Orr
Tyler Orr is an expert in German and Japanese cars and has been a mechanic …
Elizabeth Kriesten
Elizabeth Kriesten worked as an automotive technician for several years at Dodge…
Tips on Servicing

Car Brakes: How Do You Know When to Change Them?

By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. It goes without saying that these pieces wear out, but they do so slowly, meaning you may not notice they need attention until ...

Read more…