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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > F36 Steering Knuckle / Strut problem
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      10-03-2023, 10:14 AM   #1
miguelsplot
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F36 Steering Knuckle / Strut problem

Hello everyone, ever since I bought my F36 (with around 65K miles) I've noticed a strange clicking and squeaking sound coming from the front left tire. It got worse and worse and I took it in for an estimate and found out the strut has protruded past where it normally stops on the knuckle. The dealership told me I need to replace the strut, knuckle and wheel bearing and quoted all that north of $4K.

I looked at all the parts and essentially the parts are around $1300 but my question is, do you think I need to replace the knuckle all together? From a visual inspection it doesn't seem to be frayed or split open, and I was wondering if I should just change the strut.

Pictures Front left 1 and 2 show the problem. Picture Front Right 1 is the correct setup for comparison.

I have searched the forums but haven't seen this particular case before and was wondering if anyone else has seen this as well?
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      10-03-2023, 04:20 PM   #2
cfm56d7b
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Is there an independent shop in your area where you can get a second opinion?

Dealers are not always wrong but they tend to be more willing to replace / refresh all parts which work closely together to perform a certain function. It's understandable: more revenue, fewer customer complaints. What if the aging part fails and causes a newer attached part to fail as well?

Suspension components experience a lot of stress. It's not uncommon to refresh all parts with rubber bushings beyond a certain mileage + shocks + springs.

Second opinion is always a prudent next step.
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      10-03-2023, 08:51 PM   #3
Polo08816
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Quote:
Originally Posted by miguelsplot View Post
Hello everyone, ever since I bought my F36 (with around 65K miles) I've noticed a strange clicking and squeaking sound coming from the front left tire. It got worse and worse and I took it in for an estimate and found out the strut has protruded past where it normally stops on the knuckle. The dealership told me I need to replace the strut, knuckle and wheel bearing and quoted all that north of $4K.

I looked at all the parts and essentially the parts are around $1300 but my question is, do you think I need to replace the knuckle all together? From a visual inspection it doesn't seem to be frayed or split open, and I was wondering if I should just change the strut.

Pictures Front left 1 and 2 show the problem. Picture Front Right 1 is the correct setup for comparison.

I have searched the forums but haven't seen this particular case before and was wondering if anyone else has seen this as well?
If it were really bad, the alignment would be considerably off.
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