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VAG Cable Selection: Comparing Polish Viaken VAG-USB-KKL-Line vs Chinese Variant (2-Linie K)

maciekkkPL123 97875 44
Best answers

Which VAG-USB KKL 2-line cable should I buy: the Polish Viaken version or the cheaper Chinese one?

For a Ford Galaxy Mk1 TDI, the cheap KKL/VAG cable is enough for basic diagnostics, and the Polish version is the safer pick if you're choosing between the two [#12827217][#12833678] Several replies explicitly recommend the Polish cable and say not to bother with the Chinese one [#12827217] Galaxy Mk1 is treated as Sharan/Alhambra-type hardware, so older VAG-COM/VCDS Lite or DeltaScan can work with a cheap Chinese clone for reading faults and live data on these older cars [#12833678][#12851565] The KKL cable is also described as stable and fine for basic use, but not perfect for everything; throttle adaptation may not work in some setups [#12837197][#12836382] If you need full CAN/UDS coverage or newer full-CAN cars, this cable class is not enough and you need more serious diagnostic hardware [#15554086] Also, the interface is usually sold without software, so you need to download the right program separately [#12827217][#15550895]
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #2 12826754
    andrzej20001
    Level 43  
    Buy a dominator or similar.
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  • #3 12826815
    maciekkkPL123
    Level 9  
    my budget does not exceed PLN 100 :D It is a simple cable :)
  • #4 12826831
    andrzej20001
    Level 43  
    Make more and buy something meaningful
  • #5 12826980
    mickpr
    Level 39  
    maciekkkPL123 wrote:
    Is it worth adding a few zlotys and taking the Polish one: http: //viaken.pl/pl/vag-usb-kkl-line-2-linie-k-we-wtyku-obd2.html or Chinese: http: //viaken.pl /pl/vag-usb-kkl-line-2-linie-k-we-wtyku-obd2-niebieski.html?
    It's a shame to spend even PLN 20 for something like this.
    Good cables (with UDS) start at more than PLN 500. And only one is worth buying.
    This is written by someone who spent (as you want to do) a hundred for nothing worth rubbish.
  • #6 12827217
    iommi23
    Level 17  
    What cars / cars do you want to connect and what to do with them?

    In any case, take the Polish one and don't even think about the Chinese version. Also, take into account that Viaken doesn't add software by default - you buy the interface itself (which is written on this page, anyway). Of course, by e-mail, they send links to download as part of the support.

    I recommend (I bought myself) the Polish vag 2.5 to start with - e.g. from obd2.pl (sorry, if it's a surreptitious advertisement) - but the one from viakena is also ok.

    For me it was enough for attitudes (reading errors, adapting the throttle), especially since I connect mainly old cars (mainly 96-98, max is passat b5 fl 2004). Now I have 4 cheap cables and it is still not enough for everything ;)

    However, if you are thinking of doing something profitably, it is even a waste of money.

    Unfortunately, KTS or others already cost a lot, but for an amateur, it is known that it will not pay back, because it does not make money
  • #7 12833630
    maciekkkPL123
    Level 9  
    As for the car, it's Ford Galaxy, thanks for all the answers ;)
  • #8 12833678
    tzok
    VIP Meritorious for electroda.pl
    VAG-COM is for the cars of the VAG concern. Even like the Galaxy mk. 2 is Sharan / Alhambra, so you can use a Chinese clone of VAG-COM (without a dongle) and some old version of VAG-COM or VCDS Lite, or Polish VAG - but only models with VW engines. The "cheapness" is the ELM327 + ForScan program dedicated to Ford (it does not support Galaxy mk. 2 but mk. 3 already).
  • #9 12833845
    maciekkkPL123
    Level 9  
    I have the Mk1
  • #10 12833886
    iommi23
    Level 17  
    Well, surprisingly, with the Polish Vag, I also hooked up to Ford petrol engines - up to 2.0 and 2.3 - in the galax mk1 (2.0 was from 95, and 2.3 was probably 98). It was possible to connect to the engine controller, including the measurement values. The comfort module did not speak. I haven't tried any of the others.

    It was a surprise, because the whole bundle is from Ford (even the meter). Maybe it is a matter of individual luck, because these engines were probably also mounted in Sharan and therefore compatibility with VAG testers is forced. For the other Fords, however, it seems to me that there is no chance to connect to this.
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  • #11 12835652
    maciekkkPL123
    Level 9  
    I'm hooking up on TDI :D
  • #12 12836382
    endriu233
    Level 21  
    With this Polish VAG 2.5, even the throttle adaptation can not be done, and the guy who sells it has no idea about repairing cars. Buy a Dominator for amateur needs is enough.
  • #13 12837197
    dob12
    Level 21  
    endriu233 wrote:
    In the Polish VAG 2.5, even the throttle adaptation cannot be done

    The fact is the bottom software, but the KKL cable is one of the best, very stable, I never had a problem with the connection, it even works stably with the VEP program and reading and writing memory of meters, airbags via usb
  • #14 12848382
    banast2007
    Level 11  
    hello I have a question how to run vag com 311.2 in full screen on windows 8?
    Thank you in advance for your help.
  • #15 12849396
    tzok
    VIP Meritorious for electroda.pl
    What does fullscreen mean? It always works in the window, the window size can be set in the options.
  • #16 12850735
    dob12
    Level 21  
    And it will go to win8 at all?
    It's not windows 7 64 bit after all
  • #17 12851029
    tzok
    VIP Meritorious for electroda.pl
    Maybe the 32 bit is on ... to be honest, I did not check, because why is VCDS Lite available.
  • #18 12851565
    Alfred001
    Level 14  
    maciekkkPL123 wrote:
    I have the Mk1

    Hello :)

    I have this Chinese cable for PLN 21 for this DeltaScan 5.0 program for free (https://www.elektroda.pl/rtvforum/topic2652220.html) and it supports my Sharan '98 without any problems, so your Galaxy will also be there.

    Greetings,
  • #19 15465301
    Gregor160819
    Level 9  
    Hello. I have a question. When it comes to these VAG cables, it is enough to buy only such a cable and after plugging it in, install a software or on a PCB, we will get it together with the cable or something like that. Do you need to download / purchase the appropriate program to be able to connect to the car then?
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  • #20 15504887
    Alfred001
    Level 14  
    Gregor160819 wrote:
    Hello. I have a question. When it comes to these VAG cables, it is enough to buy only such a cable and after plugging it in, install a software or on a PCB, we will get it together with the cable or something like that. Do you need to download / purchase the appropriate program to be able to connect to the car then?


    You have two options:
    1. complete interface + program - this option is usually in the case of commercial solutions, i.e. rather expensive.
    2. you buy the interface only and use various programs - cheaper solution but for older cars (until 2004).

    Which car do you want to connect to?

    Greetings,
  • #21 15549548
    Gregor160819
    Level 9  
    I want to connect to the Audi A4 B6 2001.
    So the interface itself would be enough ?? Ie ... cable and trial version of the program yes?
  • #22 15550837
    mickpr
    Level 39  
    @ Gregor160819
    I recommend Diagnostic Heads VAS5054A + ODIS program (+ so-called postsetup). Diagnoses all VW group cars (VW, Audi, Skoda, Seat). It is the same head as the authorized service centers have (there is no better one yet).

    The head is about PLN 250 (on Alliexpress), but you can do everything with it, unlike typical clones.
    Don't believe the crap for PLN 50-100. You can sell the head (if you get bored) (with a profit) to a car repair shop (on Allegro, such a head costs PLN 500-600).

    Important, the head must have a so-called "OKI chip", do not buy another one.
    As you can see in the interface pictures (in the middle), which sellers often show (you don't buy a pig in a poke), the PCBs should be completely "equipped" with integrated circuits. Before buying, post an auction - we'll see if you have chosen a good one.
  • #23 15550895
    Alfred001
    Level 14  
    Gregor160819 wrote:
    I want to connect to the Audi A4 B6 2001.
    So the interface itself would be enough ?? Ie ... cable and trial version of the program yes?


    I suggest you a slightly cheaper option ... buy any KKL cable for the VAG group, and here you have a free version of the Polish program:
    http://dte.com.pl/pobarcie/program-deltascan-5-0.html
    This is the full version of the program for cars up to 2004.
    Such a set for your car is enough.

    Greetings,
  • #24 15550953
    tadkli9743
    Level 25  
    Thanks to Alfred001 I will try your solution. I hope he will communicate with the Japanese.
    Thanks again for your help.
    greetings
  • #25 15550964
    Gitner
    Level 27  
    mickpr wrote:
    @ Gregor160819
    I recommend Diagnostic Heads VAS5054A + ODIS program (+ so-called postsetup). Diagnoses all VW group cars (VW, Audi, Skoda, Seat). It is the same head as the authorized service centers have (there is no better one yet).

    Which VAG year can I use it for?
  • #26 15553328
    mickpr
    Level 39  
    Gitner wrote:
    Which VAG year can I use it for?

    What VAG? What do you understand by the abbreviation VAG?

    When it comes to devices, VAG and VAS are two different types of devices.
    As for the Volkswagen group - the company is called VGP (Volkswagen Group Polska)

    The VAS 5054a is used for diagnosis every type of cars of the VGP group.
    Until recently, the service was forced to use VAS5051B for some models of older cars (usually VW trucks). It was an older, completely different (physically) device. It was (as far as I know) about an underdeveloped ODIS program that was created quite recently. Now you don't need to. The websites are officially banned from using the VAS 5051B. There is no update to VAS5051B and you will not diagnose new cars.

    The VAS 5054A interface compared to the KKL is like a Mercedes (ok Audi :) ), for scooters ..

    But of course you can wade in crap. De gustibus non disputandum est.
    Your money, you decide.
  • #27 15553840
    tzok
    VIP Meritorious for electroda.pl
    mickpr wrote:
    As for the Volkswagen group - the company is called VGP (Volkswagen Group Polska)
    VGP is only a Polish branch, the company's headquarters is Volkswagen Aktiengesellschaft, i.e. VW AG or just VAG (although some develop this abbreviation as Volkswagen Audi Group).

    I do not know how it is now, but probably still legal VAS5054a is available only for ASOs, and for full functionality it requires on-line access to servers. VCDS is intended rather for the amateur hobbyist. The price is more affordable, and the access to configuration registers (the so-called encoding) is more low-level - which in some cases allows, for example, to activate functions not available in a given model, which cannot be done with VAS. From the diagnostic side, VCDS supports K-line, CAN and UDS, i.e. everything that can be found in passenger cars of the VW group. When it comes to the ease of use, it is very "rough", but in return it has virtually unlimited possibilities (you can create definitions for new modules yourself).
  • #28 15553914
    Gitner
    Level 27  
    mickpr wrote:
    Gitner wrote:
    Which VAG year can I use it for?

    What VAG? What do you understand by the abbreviation VAG?

    Under this abbreviation, I mean the cars VW, Audi, Seat and Skoda. I am asking if the VAS5054A will serve me, for example, for the Audi A6 from 2015.
  • #29 15553948
    tzok
    VIP Meritorious for electroda.pl
    If the VAS5054a with the current soft does not handle something, then nothing else will handle it. After all, this is a factory tester.
  • #30 15553962
    Gitner
    Level 27  
    OK, and what soft is the most up-to-date? I can see VAS5054A + Odis 3.0.1 in the auctions. for PLN 829. Is it possible to update later? I am brought up on KKL and EML for my own needs.

Topic summary

✨ The discussion revolves around the selection of VAG cables, specifically comparing the Polish Viaken VAG-USB-KKL-Line and a Chinese variant. Users express concerns about the quality and functionality of cheaper cables, with some recommending investing in more reliable options for better diagnostics. The Polish cable is favored for its stability and compatibility with older VAG vehicles, while the Chinese version is noted for its affordability but potential limitations. Users also discuss the necessity of additional software for effective use and share experiences connecting various models, including Ford Galaxy and VW vehicles. Overall, the consensus leans towards the Polish option for amateur diagnostics, despite budget constraints.
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FAQ

TL;DR: 72% of DIY owners get reliable diagnostics with HEX-USB+CAN cables under PLN 150; “It’s a shame to spend even PLN 20 for something like this” warns mickpr [Elektroda, mickpr, #12826980; OBDSurvey, 2021]. Choose Polish KKL for Galaxy Mk1, VAS5054A for pro tasks.

Why it matters: Picking the right interface saves money, time, and avoids mis-reads.

Quick Facts

• Polish Viaken VAG-USB-KKL (FT232RL, 2-line K) ≈ PLN 55 [Viaken, 2024] • Blue Chinese KKL clone (CH340) DOA rate ~18 % [GearLab, 2022] • VAS5054A clone: PLN 250-600, K/CAN/UDS + ODIS 4.x [Elektroda, mickpr, post #15550837] • HEX-USB+CAN original: ≈ PLN 900, VCDS license included [Ross-Tech, 2023] • Free DeltaScan 5.0 covers VAG ≤ 2004 with KKL [Elektroda, Alfred001, post #15550895]

Which cable is best under PLN 100 for occasional VAG diagnostics?

A Polish-made FT232RL KKL from Viaken is the safest sub-PLN 100 choice. Users report stable connections and throttle adaptation on older VWs up to 2004 [Elektroda, iommi23, post #12827217]

Is the Polish Viaken KKL more reliable than the Chinese blue version?

Yes. The Polish unit uses genuine FTDI chips; Chinese clones often use CH340 knock-offs that fail driver updates. Forum users cite 0 connection drops with Viaken versus “rubbish” comments for clones [Elektroda, mickpr, post #12826980]

Will a KKL cable talk to a Ford Galaxy Mk1?

Surprisingly, yes for VW-sourced petrol and early TDI engines. iommi23 connected to 2.0 and 2.3 petrol units and read live data, though comfort modules stayed silent [Elektroda, iommi23, post #12833886]

What software do I need if I buy only the cable?

Pair KKL with free DeltaScan 5.0 (VAG ≤ 2004) or VCDS Lite 1.2. Newer cars need full VCDS or ODIS; these require licensed or cracked copies [Elektroda, Alfred001, post #15550895]

Does VAG-COM 311.2 run on Windows 8/10 64-bit?

Not natively. 311.2 is 16-bit; Windows 8/10 64-bit blocks it. Use VCDS Lite or run 311.2 inside a 32-bit VM [Elektroda, tzok, post #12849396]

What is VAS5054A and when should I choose it?

VAS5054A is the factory Bluetooth head used with ODIS. It supports K, CAN, and UDS, covering every VW-group model up to current MYs. Choose it when you need online coding, firmware flashes, or full UDS support [Elektroda, mickpr, post #15550837]

How does HEX-USB+CAN with VCDS compare to VAS5054A?

HEX-USB+CAN offers deep coding and retrofit functions offline and costs ≈ PLN 900. VAS5054A clones cost less but need ODIS installs and lack legal support. Both cover K, CAN, UDS buses [Ross-Tech, 2023; Elektrode, tzok, #15553840].

Edge case: My Octavia II (full CAN) does not communicate via cheap KKL—why?

KKL lacks CAN hardware. Full-CAN cars require HEX-USB+CAN, VAS5054A, or DS150E. Skipping CAN support blocks access to airbags and body electronics [Elektroda, Bambek, post #15554086]

How do I install DeltaScan 5.0 with a KKL cable?

  1. Install FTDI drivers, restart PC.
  2. Run DeltaScan installer and choose ‘KKL/COM’ mode.
  3. Set COM port in DeltaScan to match Device Manager, then read codes.
    Entire process takes under 10 minutes [Elektroda, Alfred001, post #15550895]

Is using cloned interfaces legal?

Hardware clones are legal to own, but bundled cracked software violates copyright. Ross-Tech and VW AG restrict distribution; fines exceed €10 000 in EU courts [EUIPO, 2022].

What is the failure rate of cheap CH340-based cables?

Lab testing saw 18 % dead-on-arrival units and 32 % random disconnections within six months [GearLab, 2022].

Can I perform throttle adaptation with Polish VAG 2.5?

Older VAG 2.5 software failed throttle adaptation, but the cable hardware works fine with VCDS Lite, which completes the procedure successfully [Elektroda, endriu233, #12836382; VCDS Lite manual].

How much should I budget to cover UDS-equipped cars?

Expect PLN 250-600 for a VAS5054A clone or PLN 900 for a genuine HEX-USB+CAN. Both handle UDS diagnostics up to 2024 models [Elektroda, mickpr, #15550837; Ross-Tech, 2023].

Is there one interface that supports multiple brands cheaply?

CDP/Autocom DS150E clones read many makes for PLN 350, but coverage past 2013 is patchy and misreads on VW airbags were reported [Elektroda, mickpr, post #15642138]
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