Audi TT Forum banner
1 - 20 of 22 Posts

·
Registered
Joined
·
42 Posts
Discussion Starter · #1 ·
Hello,

My 08 TT 3.2 has been making very small noises from somewhere in the front, for few months they were really rare but they are coming more often and bit louder! Noise comes when I'm turning wheels while car is not moving, or is moving really slowly, no sounds at higher speeds. The sounds is not very strong, frequent rattle like something were loose and it's coming from both of the wheels, I think. Something serious and expensive, or something normal? I had H&R springs installed few months ago, if it matters.
 

·
Registered
Joined
·
322 Posts
Hi,

It might be the power steering pump.

Check for signs of leak of hydrolic fluid. If it starts to be worse and worse over time it migt be that. I had it on my A6.

Now if it has a metalic sound ... I don't know.
 

·
Registered
Joined
·
2,979 Posts
It's not a clunk is it? If so could be top mounts. You had someone check over the car? track rod ends, suspension creaking, bushes, tyres scraping on arches?
 

·
Registered
Joined
·
322 Posts
It doesn't sound like the power steering pump.

It is more of a " dry " sound :s

I guess you will have to get it lifted and inspect it from below.
 

·
Registered
Joined
·
42 Posts
Discussion Starter · #6 ·
I havent done anything to it yet, I was wondering that if it is a big deal that needs repairing asap, or can it wait untill the next inspection? That video turned out to be really crappy, but it's easiest to hear at 05s-08s, later these is too much other noises.
 

·
Registered
Joined
·
2,050 Posts
If it's like a twanging noise, as you turn on lock, I had that, which turned out to be need of silicone lub on the strut top spring mounts. Audi said it was the subject of a tech report and did it at my last service. I'd been dreading it was the rack, but seems to be cured.
 

·
Registered
Joined
·
13,237 Posts
Some cars had a steering rack problem that gave noises when turning the wheels while stationary and at low speed. Lots of threads on this if you search for 'steering rack noise'.
Could also be strut top mounts.
 

·
Registered
Joined
·
42 Posts
Discussion Starter · #9 ·
Is there any easy way to acces the strut top spring mounts ( not even sure what part that exactly is, language problems :p ) so I could try to lube it? Removing front tyres or can it be done by under the hood or...?
 

·
Registered
Joined
·
2,050 Posts
Not something to try, if you are not sure. The strut top mount is at the top of the front suspension, where it is attached to the chassis by 3 bolts, under the plastic shield at the back of the engine bay. There is a bearing between the spring and the top mount, which allows the spring to rotate with the strut as the steering moves. If that bearing is not free, it will move in jerks, winding up and releasing the spring, causing the twanging noise.

I suspect that a longer lasting solution is to replace the bearings. Sorry, don't know an easy way to get to the bearing to lub it.
 

·
Registered
Joined
·
1,274 Posts
I had a car with a problem sounding like this was steering rack replacement job - hope yours is not the same as its a couple of £k to fix.

I rejected my car and gave it back to Audi (sale of goods act) as i had only just bought it.
 

·
Registered
Joined
·
3,575 Posts
Kind of sounds like dry rubber being stressed, maybe something needs a bit of lube. I've had a crack when turning hard or braking hard but apparently that's just a need for new subframe stretch bolts.
 

·
Registered
Joined
·
2,979 Posts
My top mounts make a simmilar sound but garage said nothing to worry about so i am glad :)
 

·
Registered
Joined
·
705 Posts
digital_dreamer said:
I had a car with a problem sounding like this was steering rack replacement job - hope yours is not the same as its a couple of £k to fix.

I rejected my car and gave it back to Audi (sale of goods act) as i had only just bought it.
i had a new steering rack fitted a while back after a annoying noise when turning the wheel, almost like a clanking sounds when going over uneven road surfaces. Audi diagnosed it as a steering rack and would cost £1500 to replace, however after a strong email and links to various sites showing it wasn't only my car, they decided to pay half. If ti is your steering rack, get onto Audi CS straight away and give them some grief, you might be lucky !
 

·
Registered
Joined
·
42 Posts
Discussion Starter · #15 ·
I discovered today that it makes the same sound if I drive slowly on some bumbs on the road, even if I'm turning same time. Only at very low speeds, on high speeds it says nothing. It makes more sounds on gravel than tarmac. I guess that it's the spring mounts then?
 

·
Registered
Joined
·
13,237 Posts
If you are not turning the steering wheel and driving in a straight line when going over the bumps, then that eliminates the steering rack as the source of the noise.

If you are driving in a straight line then the bearing in the suspension strut top mount is not turning so the eliminates that bearing. Maybe the rubber part of the mount flexes in some way to produce the noise?

Other parts that move when going over bumps, and may be causing the noise, include the anti roll bar (sway bar) bushes and end connections and the bushes for the lower suspension arm where it connects to the front sub frame.
Some spray silicon lubricant may help.
 

·
Registered
Joined
·
42 Posts
Discussion Starter · #17 ·
I sprayed some lube to all moving parts and joints I was able to see/reach by turning wheels to end posittion, and that made a change! I tried turning wheels on gravel and the sound were more quiet and it didn't make so many "clicks", only few and they came at close to the end posittion!
 

·
Registered
Joined
·
705 Posts
brittan said:
If you are not turning the steering wheel and driving in a straight line when going over the bumps, then that eliminates the steering rack as the source of the noise.

If you are driving in a straight line then the bearing in the suspension strut top mount is not turning so the eliminates that bearing. Maybe the rubber part of the mount flexes in some way to produce the noise?

Other parts that move when going over bumps, and may be causing the noise, include the anti roll bar (sway bar) bushes and end connections and the bushes for the lower suspension arm where it connects to the front sub frame.
Some spray silicon lubricant may help.
not strictly true. my dodgy steering rack did it when I was driving straight over uneven road surfaces.

Sent from my iPad using Tapatalk
 

·
Registered
Joined
·
42 Posts
Discussion Starter · #20 ·
Some update with the situation.
I had the car checked last autumn, Audi service diagnosed the cause of the sound to be the earlier mentioned bearing on the spring top mount. After replacing the bearings and dog bone from left side, the noise disappeared for few weeks, after that it came back little by little and after month it was as loud as before the repair. Now when it's winter, it doesn't make that sound if you turn the wheels on snow or ice, but on tarmac you are able to hear it.

Soo, does this mean that the problem wasn't the bearings, or should I get them replaced for a second time? Is it possible that the H&R -30mm lowering springs I got installed last summer can affect this somehow? Noise started about a month after chaning of springs.
 
1 - 20 of 22 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top