Wabbelige Querlenkerlager beim Polo / Ibiza / Fabia | Posts 16+

Hi...

"Of course, it also depends on other factors."

- Suspension tuning.
- Tires/rims (cross-section, tire pressure, unsprung mass)

Since the control arm bushings primarily absorb loads in the longitudinal and transverse directions, I believe the reduction in comfort with the original suspension and tires is relatively small.

PU bushings are typically used in conjunction with rigid suspension systems.

with 195/55R15 tires at 2.7 bar pressure, lowered suspension by 35mm, and gas-filled shock absorbers.
My Audi is still quite comfortable.

Best regards, Michael.

The B3 had a very soft engine mounting, and test drivers for a well-known magazine even damaged the hood from the inside during acceleration tests.
Here, comfort means noise comfort, and the stiffness of the control arm bushings plays a role in that. Audi has integrated a modern sound absorption concept in the interior of the A3, while the Polo likely has a conventional damping system, which is probably no longer present in this specific case, presumably due to weight considerations.
Whether the convention... I don't know whether damping is better with heavier materials or if it simply depends on the type of damping material.

christians wrote:

Audi has integrated a modern absorption concept in the interior of the A3

. Was the "3" a typo, since it's about alternative storage solutions for the A2?

Quote:

The Polo likely has conventional damping, which in this specific case is probably no longer present for weight reasons...

If, for example, you consider carpet to be damping, the assumption is only partially correct

I had previously forgotten to mention: what about the operating license requirements when driving with these "non-standard suspension parts"?

While drawing attention to this issue requires that a "controlling authority" be aware that normally other control arm bearings are installed, it cannot be ruled out - especially after an accident, when problematic vehicle handling may be a (contributing) cause .

To be honest, I highly doubt that anyone would notice this. You would really have to be looking for it! Even during a vehicle inspection (HU), where these parts are also subject to a visual inspection, I doubt the inspector would notice. If the built-in bearings appear to be in good condition and are fulfilling their function, then it is highly likely that there will be nothing to complain about.

I believe it is highly unlikely that, during a roadside inspection, these bushings would be discovered by a qualified expert (!) and identified as not belonging there. I would not attribute to a regular police officer a level of technical expertise that goes beyond what a technically interested layperson could observe. This includes non-functional parts of the lighting system, worn tires, or a detached exhaust.

Sure, I meant the A2.
It's unlikely to be legal, but as mentioned, it's difficult to prove. Someone would have to figure it out first. It would probably be easier with a tuning polyurethane bushing in a combat color.

At approximately 100,000 km, I had to replace these bearings in my Ibiza because the !! flange had broken. The issue only became noticeable due to squeaking/creaking sounds coming from the rear axle, which were caused by the rubber rubbing against itself during acceleration.
I suspect that the tires were prematurely worn due to stiffer shock absorbers and the corresponding tire type/tire pressure.
Thank you for the information about the A2 storage units! This version will be used in the next exchange.

Okay, I've looked up the brochure. For the Passat, the offset is 14mm forward and 12mm backward. Advantages include improved noise transmission and stability during braking and driving. In the Passat, the lateral forces are transmitted through the front bearing of the control arm. Due to the arrangement of the tie rods, the wheel steers in the "opposite" direction when braking, similar to a negative steering radius.

Hello,

I happened to be standing under a Fabia car today, right next to our "tüffi" (presumably a person's name or nickname).

First question: Hey, are the sockets okay?

I then brought up the topic with him.

He said he would immediately notice if different nozzles (like the ones from the a2) were installed there, and that if that were the case, the operating permit would be revoked.

If, of course, the Audi rings are not visible on the parts, one could potentially argue that they are "accessories," although there was no definitive statement on this matter.

He also immediately thought that it would definitely make sense to install these parts in terms of driving dynamics and safety (if they fit perfectly).

He has seen the A2 sockets, but not on models like the Polo, Fabia, and similar cars.

Okay, now my Polo also has A2 sockets. And even in the first few meters after starting, I noticed the main purpose of those series of wobble bearings: noise reduction!
With the sequential gearbox, I was able to keep the Polo rolling at approximately 1000 rpm in any gear, and also accelerate gently without any signs of hesitation or reluctance.
That's over now: starting on the 4th. The engine responds to this driving style with an annoying drone that reverberates throughout the car, but things become somewhat quieter again above approximately 1200 rpm.

On the one hand, it's a shame, but on the other hand, it's nice that this irritating sound of stagecoaches creaking while moving slowly over uneven ground is gone.

Regarding steering precision and other aspects, I still need to gather some more impressions; so far, I've only driven the short distance from the workshop back home.

Hello everyone,

Interesting discussion thread. We also have the same problem with creaking sounds in our Fabia (built in 2006, so an 'older' model), especially when driving slowly. So far, no one has been able to find anything.
I'm going to try swapping them out for the A2 ones. Maybe then there will be peace.

Good evening.

Michael.

Does anyone have the dimensions of the A2 bearing, or even a reliable statement confirming whether it will fit in the control arm of a Lupo (6X)?

Do we need to revisit this topic? How complicated is the installation of the new bushings? I think I bent the left control arm after hitting a curb. I'm going to replace it now, and I was wondering if I can do anything about the bushings at the same time? Is it possible to do this myself, or are there any instructions available?

Or is the entire project more suited for a workshop, and what kind of investment would be required for that?


Are the wheel hub bearings for the Ibiza 6L Cupra the same as those for the A2? They even have a separate part number compared to all the other Ibizas.

Ibi6L-ASZ wrote:

The left lower control arm is bent, and I'm going to replace it now. Can the bushings be replaced at the same time?

Can this be done yourself, or is there perhaps an instruction manual for it?

Quote:

You'll need some tools, and ideally a lift. Here's how I proceeded with my Polo, along with a mechanic: Wheel off. Loosen the taper-thread fitting on the axle stub. QL - "Axis screw" loosening. QL release + pull out of the conscious rubber mount. Rubber bushings can be knocked out/chiseled out of the console. Install the new rubber bushing so that the hexagonal quick-release fitting is oriented the same way as the original bushings, and press it in (this was the most difficult part, as it tends to get misaligned at first). Assembly in reverse order of the instructions.

Are the sockets for the Ibiza 6L Cupra actually the same as the A2 sockets? They also have a separate part number compared to all other Ibizas. They have the same shape, but probably differ in the rubber compound.

Cupra 6L, same shape as A2, or Cupra 6L, same shape as normal 6L?

The workload sounds manageable, and the stage is confirmed. What tool did you use to cut that?

Ibi6L-ASZ wrote:

Cupra 6L, same shape as A2, or Cupra 6L, same shape as normal 6L?

All 3 are, in my opinion, the same. At least all three part numbers are embossed on the rubber casting, and the correct one is indicated by a colored dot.

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What kind of tool did you use to press that in?

A collection of items from the workshop: threaded rods, U-washers, nuts, and shaped parts that must correspond very precisely to the outer dimensions of the bearings, because the bearings are pressed into the console. Smaller shims would be more likely to tear the rubber out of the bearing sleeve than to push the sleeve into the console .