steering rack bolts loose?

Je reçois des bruits de claquement venant sous l'avant de ma voiture lorsque je tourne la roue à l'arrêt ou en conduisant lentement et en tournant. à des vitesses plus élevées, tourner est très bien. le bruit vient du centre pas près des roues. La maniabilité est bonne sur la voiture aussi. Je ne sais donc pas si la crémaillère de direction est en route ou juste lâche. Est-ce que quelqu'un a de l'expérience pour le resserrer s'il est devenu lâche?

Mise à jour fixe :
Si quelqu'un a le même problème, mon boulon de crémaillère était un peu lâche. Je l'ai vraiment bien serré et le bruit a disparu!

Block23232 wrote

i get popping noises coming underneath the front of my car when i turn the wheel while stationary or while driving slow and turning. at higher speeds turning is just fine. the noise comes from the center not near the wheels. The handling feels good on the car also. so i am not sure if the steering rack is on its way out or is just loose. Does anybody have any experience tightening it down if it has gotten loose?

Update fixed :
If anyone is having the same issue my steering rack bolt was a little bit loose. I tightened it down really good and the noise is gone!

I have the same noise, its more pronounced when i hit the brakes in parkin lots and very slow speeds, such as reversing. The bolt you tightened is that the steering rack mount bolts?

Yeah sounds very similar to what I had. Yes, there are 2 bolts. And there are supposed to be super tight.. I was able to move it with some good effort. Then I got the impact wrench to make sure it was really tight. After that 0 noise...

Block23232 wrote

Yeah sounds very similar to what I had. Yes, there are 2 bolts. And there are supposed to be super tight.. I was able to move it with some good effort. Then I got the impact wrench to make sure it was really tight. After that 0 noise...

Did you tighten the bolt labeled #2 in this photo?



EDIT: If you want to purchase bolt #2 in the diagram above new, it is BMW part # 32106773068.

Theodore wrote

Block23232 wrote

Yeah sounds very similar to what I had. Yes, there are 2 bolts. And there are supposed to be super tight.. I was able to move it with some good effort. Then I got the impact wrench to make sure it was really tight. After that 0 noise...

Did you tighten the bolt labeled #2 in this photo?

Yup that's the one. There are 2 of them down there.

Wow, having the same issue. Thanks as I was running out of ideas where it could be coming from.

Thought I was going crazy. Do you have a vid or sound recording of your noise? Sounds a lot like mine and my guy said it was my brake calipers which turned out to not be true.

jasonrlee53 wrote

Thought I was going crazy. Do you have a vid or sound recording of your noise? Sounds a lot like mine and my guy said it was my brake calipers which turned out to not be true.

I don't. I honestly should have done a before and after. But when I took it to a shop on their lift, you can definitely tell the noise was coming from the center of the car. Exactly where the steering rack is.

On the ground it was hard to tell. It sounded like it was coming from both front wheels. And my car is lowered so I couldn't crawl under it

Block23232 wrote

I don't. I honestly should have done a before and after. But when I took it to a shop on their lift, you can definitely tell the noise was coming from the center of the car. Exactly where the steering rack is.

Were you able to duplicate the noise while the car was on the air?

E90M3velocity wrote

Block23232 wrote

I don't. I honestly should have done a before and after. But when I took it to a shop on their lift, you can definitely tell the noise was coming from the center of the car. Exactly where the steering rack is.

Were you able to duplicate the noise while the car was on the air?

Only under load. My shops lift had a swivel for the tires on their lift. So we were able to turn the wheel back and forth while it was up in the air.

The video is almost exactly what happened with mine

I tightened the two bolts today. Marked them and they almost rotated 90 degrees until tight. So far it fixed the clunking and clicking noise.

E90M3velocity wrote

I tightened the two bolts today. Marked them and they almost rotated 90 degrees until tight. So far it fixed the clunking and clicking noise.

Yeah same with me. I wonder how they got that way ?

Anyone know the torque spec? Would not want to break one off.

Here is what the BMW TIS lists for the torque spec:

1AZ Steering gear to front axle carrier

Type
E81 / E82 / E84 / E87 / E88 / E90 / E91 / E92 / E93

Thread
M10

Tightening specification and Torque
Replace screws & nuts
Jointing torque 56 Nm
Torque angle 90 °

Link

Thanks. I will back mine out and retorque to those specs.

pbonsalb wrote

Thanks. I will back mine out and retorque to those specs.

If it is torque and turn, it is a torque to yield bolt. I recommend that you order a new bolt and then torque to specs.

I don't know if they are tty. Seems like BMW is sometimes using a base torque plus angle in non tty applications so I am not assuming. Anyone know if the rack bolts are tty?

Posting pour dire que cela semble avoir résolu mon problème maladroit. Dans mon cas, le clunk était sporadique et se produit généralement lorsque je recule hors de l'allée en premier lieu, tournant le volant vers la droite.

Quand je suis allé pour les boulons, ils n'étaient pas évidemment lâche du tout. J’en ai lâché un et je me suis resserré (le côté d’où je pensais que le clonk venait), et j’ai encore serré l’autre côté sans se desserrer.

Les boulons par le bas sont E-Torx 12mm, et ils sont serrés contre un écrou de 16mm en haut.

Les boulons sont accessibles en retirant l'entretoise / plaque de glissement en aluminium.