Do-It-Yourself information for the modifications I've completed
Do-It-Yourself information for essential wear and tear items
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All about the BMW 330ci
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Changing Your Steering Coupler
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Changing out your steering coupler is very simple. The hardest part is getting underneath the car. If you've noticed that you're steering wheel has some extra play in it, I'd go ahead and replace the coupler. If you've done some work on your car like control arms, tie-rods, etc. and you're getting an alignment anyways, add this to your DIY list to freshen up your steering.
What is the steering coupler?
The steering coupler is a rubber bushing like device that takes translates the motion of the steering wheel to the steering rack. After time like any bushing it will wear out and start to give you extra play. Please note the picture below for it's location downstreem of the steering column.
External Torx E10 Socket
Various Sockets and Wrenches
Penetrating Oil (This will help do some of the work for you like PB Blast)
BMW OEM Steering Knuckle (BMW P# 32-30-1-094-703) $41
Red Loctite (To make sure your coupler doesn't come apart later. Can be bought at any auto parts or home inprovement store)
Safely lift at least the front of the car
1. Using a lift or a floor jack with ramps lift at least the front of the vehicle. Instructions for jacking up your car can be found here. This can be a very dangerous step, so make sure that the car is properly secured before ever getting under it. Never get under a car that is just supported by a jack!
I can't really comment that much because I did my control arms, tie rods, and steering coupler all at the same time, but all I can say is that it drives like a new car. If you've got steering wheel issues and you don't want to break the bank, I'd invest in this DIY.