MB Star C4 Xentry Mercedes Software HHTwin User Manual

HHTwin software is one parts of Star Diagnosis MB Star C4 Xentry Mercedes software.Many clients wanna know what is HHtwin software and which Mercedes vehicle & module HHTWIN supports? Bellow,OBD2tool.com share you the user manual of Xentry Mercedes HHTwin software.

All MB from late 80’s to 99 = HHT-WIN
All MB from 2001 to 2009 = DAS
All MB from 2010+ = Xentry

The year 2000 is a weird transition period — some MB made in 1999 but the model year is 2000 will be diagnosed from the 38-pin under the hood and thus use HHTwin. Other MB made in early 2000 and sold as a 2000 model will have the OBD port and the SDS will require the OBD cable to diagnosis….and will use DAS.

And then there are orphan cars, like some SLK models — some 2000-2001 SLK require the 38-pin.

I’ve even seen a 2000 E320 that had both 38-pin and OBD port — I could use either port to conduct a full diagnosis. That was funny.

Star Diagnoses HHTWIN supports modules on Mercedes vehicles:

HHTWIN should be able to read all Modules.
Having said that, for Model Years 1990 – 12/1993, the Roadster Soft Top Module has 30 possible fault codes associated with it.
Whereas for Model Years 1/1994 – 1996, the Roadster Soft Top Module has only 11 possible fault codes associated with it.

IMPORTANT: HHTWIN is updated to 2018.12 xentry mercedes software disk. Software released in 2017 and 2018 doesn’t come with HTTWIN. But now, it comes again!
MB-Star-C4-Xentry-Mercedes-Software-HHTwin

How to Install Xentry Mercedes Software HHTWIN on Windows 7 32 bit:

Disable UAC settings to “Never notify” -> Restart system if needed. It`s better to DISABLE idiotic Windows Defender too. Then, you could return UAC settings back.

First simply run HHT.exe, it will install HHT to C:\HHT, then start Xentry.OpenShell.XDOS.HHT.C4.exe/Xentry.OpenShell.XDOS.HHT.C3.exe … that`s all.
Some systems must be restarted at the end.

The problem with “–” version was fixed.
Delete C:\HHT directory and begin from the first step.
If you will update your Xentry.OpenShell.XDOS version … just apply the patch once again.

Xentry Mercedes HHTWIN Trouble Shooting:

HHTWIN setup on Dell D630 install
Error: I got my SDS last week , initially I chose the external USB disc option but have now installed it on my recently acquired Dell 630. Everything installed well, however when I get to the point of using it and it automatically goes to use HHT(as my car is a 1993 model)it says”diagnostic connector is being initialised” however then it says”com port assigned! close other use!”

I took this to mean I had it on wrong COM port and sure enough I had it on COM 1 but have changed it to COM 2 both on the machine XP and on the virtual XP machine ( I am using the RS232 connector to the 38 pin diagnostic connector) but it said the same thing again.

Solution: go to the windows system menu in control panel and under the harware section look at the com port assignmennts and make sure the com port you designated isn’t already assigned to something else.

also, does the dell630 have a dedicated RS232 com port or are you using a usb/pcmcia/cardbus to RS232 converter.

HHTwin resets the switches:
Error: How do I reset the switches with HHTwin? Or do I need a different software? My MUX is C3 Star.

MB-Star-C4-Xentry-Mercedes-Software-HHTwin-1 MB-Star-C4-Xentry-Mercedes-Software-HHTwin-2

Solution: you can’t reset the switches. you can clear error codes, but the switch state is what it is. DAS is telling you what the switch state is. Or at least what it thinks the switch state is.

you’ll need to examine the switches and see if either they are misadjusted, not connected, or not functioning.

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