Brake Pads & Slotted Rotors - Front

hello,
Okay, experience with slotted discs!
I found a tuner online who offers slotted brake discs for my Golf IV!
It's a 1LS brake, specifically 280 x 22.
Allegedly from FK, but the package shows something from 'Schmidt Metallbau' in Sinzheim!
After a gentle initial break-in period of 500 km on country roads, using the standard brake pads, things got a bit more intense!
I have to say, the pressure point is absolutely amazing, and it's great for precise control, no matter how quickly you're working!
Then came the unfortunate test: shortly after, another car pulled right in front of me, and the impact was just over 200 km/h!
Okay, so it went down from 200 twice to 90!!
I have to say, I got a huge smile on my face seeing how reliable the brakes are!

Okay, something different now.
WHO CAN HELP!!!!

While removing the old pads and rotors from the front brakes, I noticed something strange:

The brake pads on the left side were much more worn down than on the right side.
The brake calipers aren't sticking because both pads on each side were worn down evenly; it's just that the pads on the left side were much more worn than the ones on the right!
'However, when braking, the car didn't pull to one side; it remained straight.'
Is that a common problem with Golf IVs, where they brake more on one side than the other?

Sure, here is the translation of the text from German to English:

'Hello'

TDIBubi wrote:

While removing the old linings and discs at the front, I noticed something strange: The brake pads on the left side were much more worn down than on the right side. The brake calipers aren't sticking because both pads on each side were worn down evenly; it's just that the pads on the left side were much more worn than the ones on the right! "However, when braking, the car didn't pull to one side; it remained straight." Is that a common problem with Golf IVs, where they brake more on one side than the other?

Hi,

With caliper brakes, the frame can get stuck, which prevents the brake pads from retracting properly. Consequently, this leads to uneven brake pad wear. It's a misconception to think that uneven brake pad wear on each side always indicates a stuck caliper. I've experienced the problems you described multiple times, and in each case, the caliper was the issue.

Hi,

Do you have 2 identical brake discs and brake pads installed? Take a closer look...

Best regards, Rainer.

Okay, thanks for your answers!!
I probably didn't express myself clearly.
First of all, during the installation, I checked both saddles, on the right and left sides.
running like new!
If the saddle is hanging, the wear on the piston side of the liner will be more pronounced.
That's the problem I'm having.
Both tires on the left side of the vehicle are worn down evenly, but much more than the tires on the right side.

Both brake pads on the left side were down to approximately 2mm, while both brake pads on the right side were at about 5mm.

Sure, here is the translation of the text from German to English:

'Hello'

The ventilation gap might also be too small.


CU Gremlin.

Okay, to put it simply, are the pads constantly grinding against the rotor?

PS: When braking, no matter how hard, the car remains perfectly straight!

He's not turning left!!!

TDIBubi wrote:

If the saddle is hanging, then the wear on the piston side is more pronounced.

Again!!!!!!!!!!!!

Unevenly worn linings on one side of the Ramens saddle brake is not a sign of a stuck saddle (piston).

Read what I'm writing to you.

Bertil wrote:

By the way, it's a fallacy to believe that only an uneven wear pattern on the pads per side indicates a stuck caliper.

If the frame is stuck, then the saddle retracts slightly slower, and the pads rub against the disc for a moment longer, resulting in wear on both pads being higher on one side than the other. The vehicle also tracks very straight.

However, the brake is stiff.

When replacing brake pads, if you only loosen one screw of the brake caliper and then push the caliper too tightly upwards, the upper pin can bend. This can cause the brake to rub slightly without pulling to one side. Check: Tighten the caliper without the brake pads installed! If the pin is bent, tighten the caliper. (The pin is not sold separately, but only as a complete carrier, costing around 60 euros). Solution: Secure the pin in a drill and straighten it.

Hi,
Perhaps the Golf IV has also inherited the old VW and Audi problem where the brake hoses on the front tend to fail after about 3 years.
I've experienced this with every Passat, Golf II, or A6 I've owned. They always had to be removed by the second technical inspection.
"I once had a similar issue with a Passat. The brake pads on the left side were completely worn down, while the ones on the right were still in good condition. It turned out that the internal components of the brake hose had ruptured. You could actually see the hose bulging instead of building pressure in the cylinder of the caliper."
I don't believe in bent screws or excessive clearance.
Besides, the blocks are "glazed." But then, the glass on the side should have been a bit thinner.

Olli.

Hello,
'I've observed that in VWs (I haven't really looked into how this applies to other brands, so I can only speak from experience with VAG vehicles), the left side always wears out more than the right. My father has been changing brake pads and rotors himself for almost fifteen years, and I've been doing it for almost five years (on vehicles like the Golf I, Golf II, and Passat 32B/35i). In every case, the left side has been the one that's worn down the most. My theory is this: The right edge of the road is often more uneven and has more manhole covers, drains, and road damage than the center of the road. When driving over these 'obstacles' on the edge of the road, the right suspension experiences shocks and vibrations that slightly loosen the brake pads in their mounts (brake calipers), causing them to not press as firmly against the brake rotor, resulting in less wear on the right side. That's at least my theory about it.'

Regards,

Arnold.