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Dangerous consumables: what is the difference between fake brake discs and pads from the original (part 1)

A motorist who saves money on the brakes of his car does not want to live for sure. Maybe he even wants to kill someone. This, of course, is a last resort. If you’re lucky, you can get off easier: a crumpled car, a broken suspension, or just a slight startle. Do you think I’m greatly exaggerating? But no. Cheap brake discs and pads are really very different from the original parts. And how they will behave on the road, no one knows.
On the eye, on the touch and on the vernier caliper
We have already compared the original filters and their analogues. Now let’s move on to the equally important details – brake pads and discs. For comparison, take the original spare parts of the same Hyundai-Kia company and analogues of one company – the Chinese Miles. Let’s start with the blocks.
We have four sets of them: original pads 581012SA70, their analogue Miles with code E400055, original 581014LA00 and their analogue of the same company with code E100036. The first pads are on cars Hyundai ix35, Kia Sportage and Carens, the second – on Hyundai Solaris and Kia Rio. So, take the first pair.
Despite the fact that the sizes of the original pads and their analogues are the same, the Miles box is noticeably larger than that of Hyundai. I wonder why? Maybe there is something else? Yes, if only! But more on that later.

In general, both boxes look solid. Hyunda-Kia has no Russian inscriptions on the package and should not be. However, sometimes it happens that the Russian language is on the package, but in this case it is necessary to say “thank you” to those who forged these pads. This does not happen on the original box, but we do not doubt the truth of the origin of these pads – they were bought from a dealer. And we did this only to be sure of the originality of spare parts. No matter how sad it may sound, but only in this way you can protect yourself from fake. Well, comparing a fake and an analogue is the same as comparing the songs of Olga Buzova and the group Rasa: to kill an esthete in yourself.

The information on the Hyundai-Kia box is traditionally not enough.

And yet, all the necessary information is: in the box is a set of front brake pads with the number 58101 2SA70. This is quite enough. The manufacturer of OEM pads for Kia and Hyundai is the Korean company Mobis. This is not mentioned anywhere, but it is not so important. Now open the box and see what we put there.

There is good news right away: we have new spring and anti-creak plates here.
Yes, and the pads themselves look really rich, and not just solidly. It’s nice to even pick up.
But the instructions are far from detailed. Apparently, the calculation was made that the dealer should also put the pads purchased from the dealer. Perhaps this is correct: if the motorist stops the lack of instructions, he better not change the pads on his own. It will be more whole.
It should be noted a very uniform composition of the friction linings. No large inclusions are visible, all edges are smooth and neat.
Everything seems even to the eye. But for the sake of interest, let’s check the thickness of the pads and lining with a vernier caliper. This will help us find out how smoothly the pad and the steel base of the block are made.

The entire pad thickness is 17.6 mm. The most interesting thing is that all four consumables at all measuring points showed exactly the same thickness. The same thing happened with the pad – its thickness is everywhere equal to 11.0 mm. By themselves, these numbers do not give us anything, but we will remember them. And move on to the box with the analogue.
As I said, the packaging of these pads is not bad. There is also a list of cars on which you can put them if you wish.
Pads do not just lie in a box, but are packed in polyethylene. There is even a very detailed instruction for replacing them with minor errors in the Russian language. And on the other hand, the instructions are just a drawn replacement circuit. Not bad in my opinion.
Unfortunately, this is where the good news ends.

Firstly, there are no braces. This is not very good, because you have to either put pads without them, or put old brackets. It seems to be a trifle, but driving with a thunder from calipers is not the most pleasant occupation. In addition, excessive contact of the pads with the discs leads to accelerated wear of the first, and sometimes to overheating of the brake mechanisms. There will not be any too severe consequences, but still.

Secondly, the pads themselves without packaging look noticeably worse. Consider carefully the pad.

It is not as uniform as on the original block. Large inclusions are very noticeable, which even make the edge of the working surface uneven. Why are such large particles bad? Firstly, they quickly fall out of the lining. And at least heavily pollute both the brakes and the wheel drive. But secondly, they quickly wear out the brake disc. Unless, of course, the particles for this are solid enough. And usually they are just needed to make the pad more rigid: the resource of the block itself depends on this. But this coin has a downside: the harder the shoe and the higher its resource, the faster the disk “ends”. By and large, it is desirable to use discs and pads of the same manufacturer – they should work in pairs. And if there is still a native disk on the machine, then the “native” (that is, the original) block will work best with it. And what such an analogue will do with the disk is a question.

And that’s not all. The shoe was a little crooked and … thin! As I said, the thickness of all the original pads at all measurement points was the same – 17.6 mm. But the thickness of the analog pads was in the range of 16.4-16.5 mm. And the lining thickness is 9.5-9.6 mm versus 11.0 mm for the analogue. One and a half millimeters is a rather significant difference, about 15%. If you imagine that the physical properties of the pads for the analogue and the original are the same, then it turns out that you can drive 100 thousand kilometers on Kia blocks, and 85 on analogs (here, of course, it all depends on the nature of driving, so the numbers are very conditional). If the composition is different (and, judging by the appearance, the way it is), then either the resource of the pads will be the same due to the reduction of the resource of the disk, or the shoe will wear out even faster (if the overlay of the analogue is not as solid as the original). Both that, and another – additional expenses which are quite capable to block imaginary economy when buying an analogue. And what to do: free cheese is only in a mousetrap.

Let’s now open the second pair of pads: Kia 581014LA00 and Miles with code E100036.
Here, the original pads are packaged in a well-recognized box from Kia, not Hyundai. The rest of the packaging is the same: only the necessary information and not too detailed instructions.

And the analog packaging is generally exactly the same as the previous one – there is nothing to add.

Inside – the same classic of the genre: Miles did not spare money for plastic packaging, but did not put much more necessary brackets in a box. Kia pads have them in the kit.

And, of course, the analogue again distinguished itself by a small spread in the thickness of the pads. The numbers are as follows. The thickness of the original is 16.9 mm everywhere, lining – 11.0 mm. The thickness of the analog walks from 16.4 mm to 16.7 mm, but the overlay here is “generous” – 11.5-11.9 mm. True, also uneven. Well, the most interesting thing is one slot on the overlay instead of two, like the original.

Why do we need these cuts? They perform two functions. The first is to remove dust from wear products from braking surfaces of disks and pads. The second is to prevent the pad from cracking when overheating. When a block with a large continuous surface is heated, it often breaks, after which a crack is visible on it. Propyl solves this problem. Why Miles decided to save on it is not clear. And the one that is still done is not too happy. It is enough to compare how smooth it looks on the original, and which fringe is visible on the analogue. Apparently, the friction material of the analogue here is also not of the highest quality.

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