Star C3 Part D & New MB W222, W217, W205 etc (Discuss)

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c3-1

Star C3 Part D & New MB W222, W217, W205 etc (Discuss)

A good thread with posts: Part-D MUX (a.k.a Star C3) and W222/W205…

Hey dears

perhaps some of you have some insights on this: While we all know that the new model series like W222, W217, W205 etc have on board ethernet routed to the OBD socket, and the Benz diagnostic tool SDConnect is Ethernet/DOIP capable, the diagnosis still seem to be fully possible via D-CAN (pins 6,14 on the OBD socket). For instance, third party tools like BOSCH KTS and the BOSCH CDR (that we use for pulling crash data) do not communicate over Ethernet, they connect to several modules (well some 70% of what is in the car due to 3rd party limitations) via CAN, and they do it allright.

So what is the real reason for Part-D mux not communicating with these model series, could this be just a planned “programmed obsolescence” so the old units get retired faster than they really should?

Perhaps it would be possible to edit vehicle definitions so the old communication platform would still serve for these cars?

I have several Part D muxes, some original, some clones, and some of them work really, really reliably. Learning that purchase of a cloned MB Star C4 that would be as reliable as this is next to impossible, i am thinking about possible workarounds. Since it does not look like actual communication architecture limitation. Anyone?

 RE: Part-D MUX (a.k.a Benz star c3) and W222/W205…
There is nothing planned it is simply technology development. In time when was used PartD there was no ethernet/DoIP in the cars so was not needed have this technology in diagnostic device. Then came new technology and was build new communication hardware. For new technology is needed new technology that′s all. It is the same like car from year 2000 and car from 2015.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
The only thing is, that Part D is not supported in newer Xentry and Vediamo or dts monaco software.
This part would work also with the cars for CAN Bus only.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
(10-05-2017 12:45 AM)laco210 Wrote:
There is nothing planned it is simply technology development. In time when was used PartD there was no ethernet/DoIP in the cars so was not needed have this technology in diagnostic device. Then came new technology and was build new communication hardware. For new technology is needed new technology that′s all. It is the same like car from year 2000 and car from 2015.

Well that would be true if the newer vehicles would run ONLY in the DoIP mode/lacking CanBUS. But actually they DO have ordinary can BUS and even the documentation (WIS) states, that the diagnostics still take place using the D-CAN!

But guess what. We never know until we test ourselves.

I did a little experiment. I have installed a VOLVO DICE (capable of being a J2534 pass thru) drivers and configured that in Xentry (using the provided ptd_select program). Result – fully running diagnostics on a CAN (YES IT IS A PASS THRU CAN because DICE can’t do DoIP) on a 2016 S-Class.

I will test more interfaces and report. If that turns to be sufficiently reliable, i will stick to it and forget about other interfaces.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
Most of our SDconnect tools are not DoIP capable but can still do W222 and similar MB models. That is for the diagnostics tasks. They cannot do Telematics updates or similar that run through the IP port.

The issue with C3/PartD and these new cars is not CAN but support for UDS protocol.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
(10-05-2017 08:42 PM)DBmhh Wrote:
Most of our SDconnect tools are not DoIP capable but can still do W222 and similar MB models. That is for the diagnostics tasks. They cannot do Telematics updates or similar that run through the IP port.
The issue with C3/PartD and these new cars is not CAN but support for UDS protocol.

That would make sense and perfectly explains why i am getting full diagnostics using Volvo interface in J2534 mode that has CAN but also supports UDS (in fact, isn’t it rather a feature of the driver than the box itself?)

Anyway, quite happy with what i;ve found and if anyone’s interested i will give info on what tools, versions, setup etc was used to make this work.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
(10-05-2017 08:42 PM)DBmhh Wrote:
The issue with C3/PartD and these new cars is not CAN but support for UDS protocol.

Bud, D3 supports UDS protocol. For example Sprinter 3 up to 2014 model year. Delphi CRD2 is UDS.
(10-04-2017 11:02 PM)mikepl Wrote:
Hey dears
So what is the real reason for Part-D mux not communicating with these model series, could this be just a planned “programmed obsolescence” so the old units get retired faster than they really should?

The only reason is that MB discontinued its support.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
(10-08-2017 08:59 AM)efka Wrote:
Bud, D3 supports UDS protocol. For example Sprinter 3 up to 2014 model year. Delphi CRD2 is UDS.

“Supports UDS” or “only UDS”? Why does C3 not talk to a 2014 Sprinter CDI control unit when it does talk with the rest of the car?

How did you check C3 supporting UDS and really talking to the control unit with the UDS protocol? The control unit most likely accepts both when the 2014 only accepts UDS.

RE: Part-D MUX (a.k.a Star C3) and W222/W205…
The only difference PartD has no DoIP.
All other ECU protocols are supported.

c3-1


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What Is MB Star?

It’s the common name for the set of tools used by Mercedes and Smart to perform all diagnostics and coding.

It consists of a laptop, various pieces of software, several cables and a multiplexer.

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What Can MB Star Do?

You can code keys, activate paddles, activate auto, activate cruise control, turn off all the error lights, read out
all of the error codes, set the clutch, check all systems, actuate everything on the car etc. The list is enormous.

How Much Is MB Star?

Due to the varying prices, I won’t put a figure here as it’ll be wrong next week. Read the rest of the page and
at the base of this page you’ll see a link to who I bought mine from. Click the Benz diagnostic tool and have a look at the prices.

What Do I Actually Need To Buy?

You need a laptop (ideally a Dell D630), a hard drive suitable for the latop with the MB Star
software and you’ll need the multiplexer which plugs in between the laptop and the car.

If you have a 450, 451 or Roadster and have no intention of buying a 453, you are probably best off buying 2011
or 2012 software and a C3 multiplexer. Being wired instead of wireless makes it all a lot less complicated.

If you have a 453 you will have to have a C4 multiplexer. (Double check to make sure it has the UDS protocol).
The minimum date for the software is 2015 but I would recommend getting the newest version you can.

What Software Is Used?

Xentry DAS – Diagnosis Assistance System. This is the main diagnostics software.
WIS – Workshop Information System. This shows you how things are fixed.
EPC – Electronic Parts Catalogue. Lists out all of the part numbers for each car.

They are all handy to have and generally come as 1 package from the seller.

What Is A Multiplexer?

A multiplexer (or mux) is a device that can take several input signals and forward them all down a single line.
Essentially, it takes data received through several pins and transfers it down 1 line
into the laptop for the software to view. There are a few main types of multiplexer

C3 Multiplexer

This was the original design from Mercedes. It’s a rubber capped aluminium brick with a connector at each end.
200mm x 130mm x 85mm and weighing in at 1.3 kilograms. It has 1 LED on the front panel.

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This multiplexer was created to communicate with the CAN bus cars that were being brought out.
It could also communicate with K-line diagnostic cars like the smart 450 fortwo and Roadster.

C4 Multiplexer
a.k.a. SDconnect

The update was called the C4. An aluminium extrusion with a hard plastic surround and 2 connectors at 1 end.
215mm x 155mm x 50mm and weighing in at 1 kilogram*.

It has 4 LEDs, an LCD and 4 buttons. This multiplexer is wireless between the laptop and the multiplexer.

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This replaced the C3 multiplexer due to an addition of a third diagnostic protocol.
It still covered K-line and CAN bus but now it also covered the new UDS protocol.

UDS is what is used in the smart 453 fortwo and forfour.

*Actual size and weight may vary slightly depending on the manufacturer.

Alternative C4 Multiplexer

Before Mercedes even came out with the official C4 multiplexer, a Chinese company decided to make
their own and attempt to sell it as an update. Steer well clear of this type. They are very unreliable.
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Essentially, it is a C3 multiplexer, made as small as possible using the cheapest parts available.
They were a massive bodge up and they would fail all the time. Don’t buy this type.

C5 Multiplexer
a.k.a. Xentry Connect

This is the newest multiplexer from Mercedes.

As of July 2016, clones of this unit are now available although this type is not required for the smart..
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I don’t know how this differs from the C4 device but it is required for the new Merc hybrid (W222).

Original Multiplexer Or Chinese Clone?

I hate to be the messenger of bad news but you aren’t buying an official multiplexer for less than about £7,000.
So it’s a no-brainer to get a Chinese clone multiplexer from a reputable company for less than 1/10th of the prce.

Software

The software you get will normally be preinstalled onto a laptop or hard drive for you to install into your own laptop.
Preinstalled is a lot easier than doing it yourself and will save you 2 or 3 hours of installing and messing around.
You will get cracked versions of all of the software that you require. Some companies will also add other
software on there too like the TAN code calculator.

Software Installation – The Easy Way

What is easier than getting someone else to do it?

When I bought my 1st and HDD with the Xentry/DAS software on, I noticed a file on the desktop called Team Viewer.
I quick Google search showed me that, with the right details, someone else could control your laptop.

I assumed that the reseller did this for a reason so I left my laptop on and connected online and sent the
Team Viewer details to the reseller, asking them if they could activate the software. Next day, it was done!

This was from MBStarShop (link at the bottom of the page) but it’s worth asking 1st. Just to be sure.
I suspect it’s a service that any good reseller would offer so again, it’s worth asking 1st.

Laptop

The original MB Star setup uses an unknown Toshiba touchscreen tablet or the newer Panasonic CF-D1 tablet.
The CF-D1 is very expensive so not worth considering. You could buy 30-40 compatible laptops for the same price.

Can I Use Any Laptop?

You can but you really shouldn’t. I don’t advise it for simplicity sake.

The MB Star software was tweaked to work with 1 specific touchscreen tablet. When loaded onto other laptops,
it wouldn’t function properly. Wouldn’t connect to the car, kept crashing and didn’t do what it was supposed to.
This was mainly down to the MB Star drivers controlling the hardware in the computer.

Over time, hundreds of laptops were tested for compatibility but only 2 laptops were found to work correctly.

Dell Latttude D630
IBM Thinkpad T30

The IBM T30 has a smaller screen, slower processor and was launched in 2002.
The Dell D630 has a larger screen, faster processor and was launched in 2007.

As you can imagine, the Dell D630 is the better of the 2 to go for. It’s also easier to find as they aren’t as old.

If you really want to use your own laptop, you can get the MB Star software on an external hard drive and run it
all through a virtual machine. This is a terrible way to do it, full of problems and I really suggest you don’t bother.

The Dell D630 can be bought in working condition for around £50. I paid less than £100 for
these 2 including postage. The orange top is just vinyl to cover up the scratches on the lid.

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It makes more sense to source your own laptop instead of buying it in a kit from a Chinese seller.
You’ll pay more for the laptop, you’ll pay more postage and you’ll pay more import duty.

However, if you buy the laptop from the supplier, it will all arrive ready to use.
If you fit a hard drive to a laptop you bought separately, the software needs some setting up.
This involves collecting numbers and contacting the supplier so they can give you codes to enter.

The Dell Latitude D630 came in 2 subtle variations but they both work as an MB Star laptop.
The difference can be seen in the touchpad button layout.
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Where Can I Buy These From?

There are countless shops online and 10 times more sellers on OBD2TOOL who will sell you these items.
However, it’s always nice to have a company recommended that someone has experience with.

Following is the popular selling mb star products at obd2tool:

Products List:

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