Mercedes has incorporated diagnostics interfaces in vehicles since the eighties. Earlier systems used an OBDI style of diagnostics using flash codes to count…
MBCluster – Mercedes Diagnostics Interfacing 38-pin Analog, Digital and OBDII Ports
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38pin, Analog, Diagnostics., Digital, Interfacing, MBCluster, Mercedes, OBDII, Ports
- Categories: Mercedes-Benz
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Hi, I have a 1994 W202 C200. After removing the intrument cluster with the
ignition switched on, the SRS light is on. It goes out after about 2
minutes.
This is a comman problem if the instrument cluster is removed when the
ignition is on; (I know that now 🙁 )
I tried to read pin 30 using your method but pin 30 doesn´t blink at all.
Strangely enough, only pins 1,2,3,4,6,16,17 and 30 are used on my car.
Do you have a tip for me?
i got a 38 pin converter plug and a obd2 box with a usb plug for 19 dollars
total :)
Thank you for your helpful post. So which OBD2 diagnostic tool do you
recommend for the budget DIY Mercedes mechcanic? I am finding hundreds of
CARSOFT 7.4 from $50 to $200. Thanks.
hey, do you know what a 1998 A-class (w168) a160 car has for connector?
obd2?
this is very interesting. i jutt came across a thread on the mercedes benz
forum and some guy said you can set the codes to turn on the electronic
fans at a lower temperature rate. lately my 1994 s500 has running a lil
past 100 degrees. and it’s barley turning spring time hear in california.i
can only imagine in summer time. so i started looking up info on what could
it be making my car run hot. is their really a code to make the 2
electronic fans turn on at a lower temp? what can i do?
Im not sure of the answer, the public forums would definitely be of more
help there. I would guess that it has an OBDII connector, as it is a newer
model, introduced in 1997, after the OBDII. If it has the 38-pin, not sure.
It would likely be under the hood somewhere, if you probe around, you will
probably find it, hidden in the fuse box like the W210, or in tyhe ECU box,
like the W140. Good luck!
Hi, Thanks for the video. I have a similar looking multiplexer to you, I
bought mine from TMART, however using the 38 pin connector directly it can
only read a few of the ‘K lines’ (I can’t read ME on the carsoft, however
it will read Aircon and Instrument cluster). Do you have the same problem?
Do you think it will be fixed if I buy breakout box and interogate the
individual pins directly? I have 2001 W210 E320 CDI
Not sure about codes, and doing using settings, but the coolant temp sensor
can be monkeyed with to reduce the temp at which the aux fans kick in. Take
a look at the JRF website for more info. In your case, maybe your viscous
fan clutch is bad. My ’92 500SEL had that go bad and had the same problem.
JRF also has info on repairing that too, I believe. Good luck!
great job. i checked your website to purchase the PRE OBD 2 for my car. i
own a 1994-1995 mercedes S420. please email me back wasimtiger1@yahoo.com
The most popular carsoft is the Chinese knockoff, because of the price. Its
limited in functionality as it is a total ripoff of the original product.
Therefore any functionality it gives you is pure luck! You can try to
interface with a specific K-line by using the 3-pin manual cable that plugs
into the other side, and plugging the yellow into the correct pin on the
38MB. Then use the software to query the ECU for that pin. If it works,
then great, hard to say.
The adapter cables I have seen are incorrect, hooking up the wrong K-line,
so no, I dont think any work. The only way to read obdII K-line data is
using the obdii port (pin7). To access the other modules in the vehicle,
you need something like the carsoft unit which multiplexes any MB OEM
k-line for special reading.
Awesome! Thank’s for all the info. Now I can start messing with my ’02 E320
Cdi 😉
If you keep digging for Mercedes diag tool, you will eventually find it. If
you get the breakout box, then you will need the banana plugs. Some
blinkers use banana plugs, some plug directly into the 38-port with tiny
pins. So just keep digging and you will find the two tools you can use
together. Good luck!
Hello MB Cluster, I’m considering to buy the breakout box but I have one
question. The device that read the codes with the LED light connected to
the box used on this video where I can get it? I saw on Ebay the breakout
box but I could’t find the other black device.
hello I have a Mercedes W168 how can I make the diagnosis with autel 509 ms
without multiplexer on this site I saw the pattern seems that pin 1 you
could help me thanks
benzev.co.nz/current/mercedes-w168-onboard-diagnostics-obd-connector/676/
For the W210 38 pin port to obdII reader; can this be done with an adapter
cable?
Hi, the K-Lines that Mercedes implements for their controllers are
different than the standard ISO 9141-2 protocol used by the OBDII standard,
which your Autel509 uses. They only share the physical layer as far as I
know, everything else is proprietary information. The Carsoft device may be
able to read that pin, if it is programmed to, but im not sure if it can,
Ive never tried it. Usually anything past 2000 is just the Mercedes SDS
equipment, but again, Im not sure about that. Good luck!