I took my 2003 325i BMW to the dealer for oil service. They told me two issues with my car - the front thrust rod bushings are worn and it would cost $600 to fix; the second issue was my rear brake pads are at minimum level and that would cost $275. I declined the service due to the expense. However, I don't know what the bushings are for and if in fact they need to be replaced. I don't have any issues with my steering wheel twitching or a thump when I brake. What do you advise?
Brake pads - won't my indicator light tell me when to replace them?
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loose lug nuts
wheel out of balance; weight fell off
incorrect tire pressure; over pressure can damage the tire
faulty tire;out of round, tread separation, etc
loose wheel bearing
worn shock absorber
worn steering / suspension component; bushing, tie rod end, ball joint, etc
You can rotate the tires, front to back to see if the problem follows the wheels or is a front end only problem.
it s acceptable in full lock to lock turns to hear the humming with normal wight steering and it is acceptable to drive the car without any power steering assist until have it fixed don`t be worry keep an eye on steering fluid
Since the struts are the important suspension parts of the car specially of the front, the job must be taken seriously and done with good tools. Also the alignment must be checked after replacing of the strut which need a good sytem.
So even though the strut can be removed and fitted like removing the strut with jacking up the front , removing the wheel assembly , removing the link and pulling out down.
But care must be taken to put back with new bushes on the balance rods, check the tie rod ends and suspension bushes.
My Advice is to get the OE component replaced by the service dealer, checked, aligned with warranty.
i would suspect somewhere in your front end you have a compliance bushing with excessive movement. these cars front ends depend heavily on these style bushings, and as they wear you can start to see tire wear patterns, looseness in steering, and high speed vibration. make sure you have the front end inspected by a shop that is familier with these types of cars. good luck!
As for the front noise. Sounds like the ball joints. They wear a groove in the cup, where they sit. When they go over the lip, they make a thump sound. As for the rear wiper arm. If the arm has been taking off, folks strip the knurl teeth out of the arm. If the motor is working back & forth right, & wiper arm is tight. Oil the hinge pin on the wiper arm. They get alot of dirt on the back window. If all else fails replace wiper arm.
I've been working at a Toyota dealership for a long time and I have never seen lower control arm bushings wear out at 50k..or 100k for that matter, unless the car had been in a major accident. If they were bad you would have heard a lot of clunking noises driving over bumps and turning. I think you should find another dealer and get a second opinion.
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.
Aside from the bushings, the remainder sounds like semi-valid "busy work"... If you are at all mechanical, you can do the entire job far cheaper than the dealer is going to charge you....Pads...tops $40, clean and lube slides 10 minutes while you are there, Clean rear brakes...pretty much unnecessary but do it if you want (they have self adjusters) Bushings...If available individually, not more than $50... if on complete arms, likely about $350-400.. Bushings are pretty much "bull work" but you have to know what you are doing to get them out and back in without damaging arm.Most of what they are quoting is labor time. good luck