Frequently Asked Questions -- Page 1

1.1  Will VCDS work with my car?

VCDS will work with most Volkswagen and Audi models sold World-Wide 1994 through 2010. It will work with some cars all the way back to model year 1990. It will also work with most late-model SEAT, and Skoda models sold in markets other than North America. If your VW or Audi has a 16-pin "OBD-II style" Data Link Connector,  VCDS will definitely work.  If your car has the old "2x2" Data Link Connection, check if there is a wire going to each pin, as shown in the picture. If there are four wires, VCDS should work with any diagnostics-capable modules that are present.  If there are only three wires, then nothing in the car is diagnostics-capable..  Please see these Application Charts where you can select your model and see which modules can communicate with VCDS.  Also see the Issues page for a few things that may not work as expected.   If in doubt, e-mail us.

1.2  Will VCDS work even if my car is "chipped"?

Yes.  If it doesn't work in a "chipped" car, the chip-vendor did something seriously wrong! Chips from reputable vendors do not interfere with diagnostic functions so if the factory scan tools can "talk" to the ECU, then VCDS should be able to as well.

1.3  What functions are included in the current release?

Please see the Function Chart for the current feature set. We strive to keep VCDS updated to work with the latest vehicles and functions. The objective is to allow users to perform the same diagnostic functions that are performed by the VW/Audi factory scan tools, using instructions found in the factory repair manuals.

1.4  What  are the computer requirements?

A computer running Microsoft Windows.    A Laptop, Netbook or Tablet computer is best, but a desktop PC can also be used.

With a Serial interface:  We recommend at least a 200 MHz Pentium (or AMD equivalent) with 64 MB of RAM and Windows 2000 or newer.   Windows 2000, XP, Vista, and 7 are all fine.    As of version 10, we no longer support Windows 95, 98, ME or NT4.

With a USB interface: We recommend at least a 500 MHz Pentium-3 (or AMD equivalent) with 64 MB of RAM and 2000 or newer.  USB interface work best with Windows XP or newer on a 1 GHz or faster PC, or on Vista or 7 on a machine robust enough to support each operating system.   

VCDS may work on some lesser PC's, but anything less than the above recommendations are "unsupported" meaning if it doesn't work, please don't ask us for help. 

Available disk-space should be a non-issue on any PC made in the last 10 years; VCDS requires less than 100 MB.  

Screen resolution can be as low as 640x480, but 800x600 or more is recommended.

If you are using a power supply for a laptop, it should be one specifically designed for that purpose, NOT a "universal" adapter.

Systems running Windows in a virtualized environment (for example Virtual PC on a Mac) are not supported.  See also Question 1.8.

1.5  Should I get a Serial or a USB interface?

This depends primarily on the PC you're planning to use:

If you're using a modern PC running Windows XP or newer, then you should probably get a USB interface.   Although USB interfaces are no faster than serial versions, it's becoming increasingly difficult to find new PC's with serial ports, so a USB interface is more future-proof.  

If you're using a PC running an older version of Windows or with a CPU speed of less than 1GHz, we recommend a Serial interface.   Obviously a serial interface requires a Serial Port which looks like this:

Observe the port we surrounded with the GREEN oval. Notice the 9 male pins? That's a Serial port.   Observe the port circled and crossed in RED.  Notice the 15 female pins? That is a Monitor port and will not work!

USB<->Serial converters are often unable to handle the baud rate and timing requirements that are demanded by many control modules using the VAG protocols. We have had very poor results with most available USB<->RS-232 converters, therefore USB<->Serial converters are "Not Supported."  Please do not ask us for technical assistance if you are using one of these converters.   

If you want to use one of our Serial interfaces on a PC that doesn't have a serial port, we recommend you buy this Quatech SSP-100 PCMCIA-Card.  We don't sell them, but we've had excellent results with them.    We've got installation and configuration notes here.

1.6  What if the PC I wish to use with VCDS doesn't have Internet access?

Except for the Pro-Kit, our software is provided to you via our download page, rather than a disk, so you will need a way to transfer the Self-Installing EXE file to the PC that you will be using with VCDS. The file fits easily on a removable USB drive and can also be burned onto a CD-R or CD-RW. Make sure that you do not run the EXE file until you have copied it onto the PC where you would like VCDS to be installed.  Since software updates are provided only through our website, you should plan on repeating this transfer process to keep current. You do not need to be connected to the Internet while using VCDS.

1.7  Can I use VCDS on a desktop computer?

Yes,  but you will probably need an extension cable for your interface if the PC is more than 6 feet from the car's diagnostic port..  

We stock Serial extension cables 15' (3m) length.    You can extend a Serial interface up to 50'.    See the Accessories section of our Store for pricing.

We stock a 16-ft Active USB Extension.   You can extend a USB interface up to 32' with two of these.   We do not sell or support any other brands or models of USB extensions. If you have problems with a different brand of USB extension,  the first thing we're going to tell you is to eliminate the extension.

1.8  Will there be a Mac or Linux version?

There will be no "native" Mac or Linux versions.  The time and effort required to "port" VCDS to these platforms would never be worthwhile. 

Linux:

One person has gotten VCDS running under Linux using WINE -- click here for details.

A much more recent one:  HOW-TO Install VCDS in Ubuntu Linux using Wine  

Mac (IBM/Motorola):

Results on IBM/Motorola Power-PC based Macs using Virtual PC vary.  Some people have gotten it to work, but sample rates tend to be poor and the sessions tend to drop frequently.   This is likely inherent in the overhead and latency inherent in the virtualized environment.    Some people have not gotten it to work at all.

Mac (Intel):

Reports from numerous users indicate that VCDS works perfectly on the latest Intel-based Macs when these run Windows XP natively using Boot Camp.    We've had a few reports that VCDS does not work with Windows Vista under Boot Camp.    Reports from people using Parallels are less favorable, most people who've tried this have not been able to get it to work at all, especially with Parallels builds lower than 3120.

The bottom line:

We do not consider any of these to be "Supported" platforms for VCDS.   If you can get VCDS to work on one of these platforms, great.   But if it doesn't work, please don't expect us to be able to help you.

1.9  Will there be a version for iPhone, Andoid, Blackberry, or Windows Phone 7?

We are not planning to make a native "Application" for any of these platforms.   Instead, we have begun working on an approach to support modern mobile devices in a completely platform independent way.   This project is still in its infancy and there is no estimate of a completion date, so please don't waste our time asking when it will be ready.   When it is ready, we won't keep it a secret! 

In the meanwhile, the most portable way to run VCDS is to use a Netbook PC. These are small enough to fit in your glove box and cost less than a typical smart phone.   Current ones usually come with Windows 7 Starter Edition, and VCDS works fine with this.   Older ones normally came with XP-Home and VCDS works fine on that as well.

1.10  What's the difference between VCDS and an OBD-II Scan-Tool?

OBD-II is a government mandated diagnostic protocol that is primarily aimed at diagnosing emissions-related problems.   An OBD-II scan tool will work in many different brands of cars.  VCDS uses VW's proprietary diagnostic protocol and will only work in VW/Audi vehicles.  Although you can use an OBD-II Scan Tool in an OBD-II compliant (1996 or newer) VW or Audi, an OBD-II Scan Tool can only talk to the engine, not the numerous other "intelligent" systems in the car.   Want to reprogram your central locks or your Radio?  Diagnose a problem with your ABS, Airbags, or Automatic Transmission?  Re-align your Immobilizer after swapping ECU's?  Reset your Service Reminder Indicators?   Communicate with a pre-1996 model (not OBD-II compliant) car?  An OBD-II Scan-Tool can't do any of these things. Please see our OBD-II Page for information on using the Generic OBD-II function in VCDS. Want some reasons to choose VCDS over a generic OBD-II scan tool? See this Real World Comparison.  

1.11  Can I use VCDS to roll back my electronic odometer?

No. A brand new instrument cluster (with less than 100 km / 62 miles on it) can be rolled forward, one time only. Of course, this assumes that the instrument cluster is "diagnostics capable". Not all instrument clusters with electronic odometers are.

1.12  Can I use VCDS to "Flash" the chip in my ECU?

No, we have investigated flashing, but found that there are several different methods of encryption for various VW/Audi vehicles, as well as delicate licensing issues to overcome. Therefore, we do not intend to pursue flashing any further at this time. You cannot alter boost, timing, fueling, rev limiter, or speed limiter with VCDS. You should contact a chiptuner if you wish to have those parameters altered.

1.13  Is there anything else I need to make full use of VCDS?

Yes.  A good Repair Manual containing the the "Native" Scan-Tool procedures for your car.   VCDS is a tool, not an on-line service manual. We could not possibly document everything you can do with it in every year and model of VW/Audi that VCDS can be used with.

For US and Canadian VW and Audi models, the best source are the Repair Manuals by Robert Bentley Publishers.    Please note that Bentley also has some publications called "Service Manuals".   These tend to be less complete than the Official Factory Repair manuals and are not recommended for use with VCDS.  

In the USA, VW/Audi provides online fee-based factory repair information through the following sites:
Volkswagen: erwin.vw.com
Audi: erwin.audiusa.com

Since the above sources of repair information only applies to US/Canadian vehicles, if your car is European-spec or from the rest of the World, they may be of little use to you.

For Rest-of-World VW, Audi, and SEAT manuals, check erwin-portal.com

For Rest-of-World Skoda manuals, check erwin.skoda-auto.cz

1.14  Will VCDS work on Windows Vista and Windows 7?

Yes, the current release of VCDS works fine on all versions of Window Vista and Windows 7, 32-bit as well as 64-bit.  In fact, if you install Releae 10.6 or newer on a 64-bit version of Windows, you automatically get ta true 64-bit version of VCDS.  However, Windows 95, 98, ME, and NT4 are no longer supported by the full version of VCDS.

VCDS-Lite also works on all versions of Windows Vista and Windows 7.   VCDS-Lite also still works on Windows 95, 98, ME, and NT4.

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