OBDII mercedes diagnostic tool fault code reader
Self Diagnostics of Mercedes engine using a laptop.
Any car sooner or later will show wear and tear. For people that try to repair their car themselves, may benefit from this article.
The article will focus on how to diagnose the engine management system for
Mercedes vehicle throughout the model years 93-98 with HFM and PMS found with the M111 and M104 engines:
To do this, we need the following:
Diagnostic adapter.Currently, it is best to use the USB Adapter KKL
Many car diagnostic adapter are on sale and easy to find using the link below
To use the adapter on the W124, W463 (rectangular block of diagnosis 16 pin), buy
If you have an adapter from Carsoft 7.4 , then you also can use it in the same way.
Diagnostic program HfmScan.
Download HfmScan diagnostic software
HfmScan.zip - the latest version of the program, including support for USB adapters on a chip FTDI ( K²L901 USB KKL and some USB KKL 409.1 VAG) for higher data rate exchange.
To unpack RAR archive use WinRAR
Use the directory structure from the archive and unpack to location of your choice.
After unpacking the archive folder appears as hfmscan with the executable hfmscan.exe inside
If you are using a USB adapter you need to install the driver.
A file readme.txt is included and describes how to use the program (the diagnosis).
Connect the adapter to the diagnostic connector as illustrated in the images.
If your cable fits the OBD adapter, simply connect it.
W140 \ W202 \ W210
Ssang Yong Korando, Musso:
Turn ON the ignition, start the program, select the port on the adapter (if there is an FTDI port-select always it), click the Connect
diagnosetool for mercedes w124
If the program cannot communicate with the CONTROL UNIT, make sure that all connections to the diagnostic block are correct. Also, check the voltage on the block between ground and supply pin, should be at 11-14V, and between ground and k-line also at 11-14V static.
After the application has connected to the ECU the following can be performed:
If you have problems with your engine, you may make the engine diagnosis (button [diagnostic plan] or look readme_eng.txt file) and send result (folder LOGS, as ZIP achive) to
Requesting the ecu.dat to enable all features!Steps:
1. Make all connections as previously described
2. Archive (compress) LOGS folder and send it to HFMScanner (requesting the cost for your ecu.dat)
3. Your log file will be modified and the cost for it calculated. A reply email with payment instructions through PayPal will be send to you.
4. upon receipt of payment the file ecu.dat will be emailed to you
5. simply put the file in the hfmscan folder. Now all features of the application are enabled and customized to your ECU.
Watch the Video on YouTube.com from users (with ecu.dat installed)