BMW 325 Touring, Knocking noise when turning full lock
Our BMW is making a knocking noise when turning on full lock, we also notice a vibration through the steering wheel. We had a similar problem last year where we had the same faults got worse and worse until the steering pump broke. We had the steering pump changed at a local garage but the same problems seems to have started again , can anyone help to solve what is causing this? Thank you
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Re: BMW 325 Touring, Knocking noise when turning full...
Hi these cars are known for the wishbone bushes failing and will cause the same symptoms as what you describe, there are 3 different bushes on the wishbone have them all checked for any play, Hope this helps
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I would say it sounds like cv joints need replacing.also check bushes and ball joints for play. If ok turn steering on full lock both ways.start with full lock on right turn pull away slowly if you get knocking noise you will know it's that side is worn and then do same on left turn on full lock.
P0325: Knock Sensor 1 Circuit Malfunction Bank 1 or 1 Sensor
- Knock sensor circuit short to ground
- Knock sensor circuit short to power
- Knock sensor circuit open
- Faulty knock sensor
- Faulty Engine Control Module (ECM)
Replacing the knock sensor usually takes care of the problem.
The knock sensor
is attached to the cylinder block. It senses engine knocking using a
piezoelectric element. A knocking vibration from the cylinder block is
sensed as vibrational pressure. This pressure is converted into a
voltage signal and sent to the Engine Control Module (ECM).
It very well could be a ball joint, but I would check your strut tower. When they come loose, they hit the fender where the connection is. Pop the hood, and look where the tower comes up, push down on the fender and see if it moves. That may be your problem. Hope that helps
This noise is likely caused by swaybar end-link joints. Newer cars use solid rods with ball and socket joints, to connect the ends of the swaybar to the frame. These ball and socket joints at the end of these rods, create an amazingly noticeable and annoying noise in the car when you go over the slightest bump. There is no way to test these things unless you disconnect one end and check to see how tight the ball is in the socket just by wigging the with your hands. If they move around at all without pressure, they are no good. Go to ebay and search "bmw endlinks " for a picture.