Dual clutch gearbox 02E
Electrical Connections - Passat
It seems that most affected cars are the VW Passat , VW Touran and the
VW Golf produced between 2003 and 2007. I have only seen a few Skoda and
a few Seat. If you consider my information useful please
click some of my adds to keep this site up and runing.
Currently, the world of transmission is dominated in Europe by
manual gearboxes and in the USA and
Japan by automatic gearboxes. Both types of gearboxes have specific
advantages and disadvantages.
The advantages of a manual gearbox are, for example,
• high degree of efficiency
• robust and sporty characteristic.
The advantages of an automatic gearbox are, for example,
• a high level of comfort, above all in gear changes, as there is no
interruption in tractive power.
This formed the framework for Volkswagen to combine both
transmission concepts into one completely
new gearbox generation: the direct shift gearbox.
Thanks to the double multi-plate clutch design and
different automatic gear selection programmes, it is
well capable of meeting the high demands in comfort from drivers who
favour automatic gearboxes.
Furthermore, with direct selection and lightning fast, jolt-free
gear changes, it also offers a high level of
driving enjoyment to drivers who favour manual gearboxes.
In both cases, fuel consumption is at a par with economical vehicles
fitted with manual gearboxes.
But there is a problem with this DSG Gearboxes, it's
the Mechatronic unit. This unit sits inside the gearbox and
it gets pretty hot and sometimes the electric valves will get
defective. Also a common problem with the DQ250 Mechatronic unit
is a faulty TCM module. This is mostly seen when the gearbox oil
temperature goes above 40 degrees Celsius and we will start seeing
error codes as "18222 P1814 Pressure Control Valve 1 (N215), Open / Short to Ground"
or some other Short to Ground errors on the other valves.
Most of the valves can be refurbished but until now
I have never seen anyone being able to refurbish the Pressure
Control N215 or Pressure Control N216.
Some of the most common symptoms of a Mechatronic
Failure are :
Flashing PRNDS in the Dash and the gearbox will
switch to neutral.
Hard engaging of the 1st gear (slams into the
first gear) from a stand still point or in Reverse. This can sometimes
also be caused by a decallibration of the clutches so you might
be able to "save the day" by performing a recalibration
with a VCDS cable. Procedure can be found on
Ross Tech website. * If this does not help or only for
SHORT term, your next move is to change the N215 / N216
Hard downshifting from 3 to 2 and 2 to 1st gear
followed by some loud "clunk" noises. * Again, this
can be caused by sticky N215 / N216 , changing them should help.
Shaking / juddering feeling while in 2nd gear
and the car pulls up. *
Jerking between gears *
* This problems can be caused by worn
valves. Changing the affected valve might solve your problem
(N215 / N216).
Loss of power between 1300-2000 RPM. Car feels
If you have any other experiences please let me
know, I will add them.
For whoever needs I can supply electronic parts for
the DQ250 DSG Mechatronic / Mechatronik units.
I have the following :
Pressure Control N215 Valve 1 (N215)
Pressure Control N216 Valve 2 (N216)
Pressure Control N217 Valve 3 (N217)
Pressure Control N218 Valve 4 (N218)
Pressure Control N233 Valve 5 (N233)
Pressure Control N371 Valve 6 (N371)
Circuit boards, solenoids and also some whole Mechatronic
units are available also upon request. Mechatronic Pressure Control Valves are available on request.
This valves are present in ALL VW/Audi group DSG Mechatronic
gearboxes and usually you will be able to read one of this error
codes when one valve goes :
18222 P1814 Pressure Control Valve 1 (N215), Open / Short to Ground
18223 P1815 Pressure Control Solenoid 1 (N215), Short to B+ **
18226 P1818 Pressure Control Solenoid 2 (N216), electrical
18227 P1819 Pressure Control Solenoid 2 (N216), Open / Short to
18228 P1820 Pressure Control Solenoid 2 (N216), Short to B+ **
** This errors can be caused by insufficient
oil in the gearbox. Please check the level and the quality of oil
18231 P1823 Pressure Control Solenoid 3 (N217), electrical
18232 P1824 Pressure Control Solenoid 3 (N217), Open / Short to
18233 P1825 Pressure Control Solenoid 3 (N217), Short to B+
18236 P1828 Pressure Control Solenoid 4 (N218), electrical
18237 P1829 Pressure Control Solenoid 4 (N218), Open / Short to
18238 P1830 Pressure Control Valve 4 (N218), Short to Plus
18241 P1833 Pressure Control Solenoid 5 (N233), electrical
18242 P1834 Pressure Control Solenoid 5 (N233) Open / Short to
18243 P1835 Pressure Control Solenoid 5 (N233) Short to B+
18246 P1838 Pressure Control Solenoid 6 (N371), electrical
18247 P1839 Pressure Control Solenoid 6 (N371) Open / Short to
18248 P1840 Pressure Control Solenoid 6 (N371) Short to B+
The following error is most likely caused by
a mechanical problem (most likely worn) clutchbut can also be an error on the Mechatronic
If you need some of this or you have any problems
with your DSG Gearbox of the Mechatronic unit please drop me an e-mail
at jaxelos @ gmail.com and I
would be more than happy to help if I can. I can fix /repair
Mechatronic units including the circuit boards if necessary.
BEFORE YOU SEND ME ANY
QUESTIONS regarding problems with your DSG gearbox make sure you
have checked the following:
ALL YOUR ABS Sensors are working in perfect
condition. You can log the signal of all 4 sensors with the VCDS
Tester. or VCP. The most important one here is the REAR wheel sensors.
Make sure your diesel filter is changed and
not filled up with oil.
You changed the DSG oil and filter and you
performed the DSG Adaptation correctly.
You have no other errors on the engine control
Your EGR Valve is in good working condition
and engine runs as it should.
CHECK your VACUUM Pump and be sure there
are NO OIL LEAKS that will reduce the Vacuum necessary for the
perfect working condition of the engine.
In order to get a better
overview of your problem please try to DESCRIBE the problem as good
as possible but do no write me a whole novella.
Remember to say "HI" and present
yourself so I know who I am writing
with and please
tell me from where you are!
I will NOT answer e-mails like this :
"I have a problem with my DSG, please help me"
"Do you have a file for DSG6 6?"
or similar e-mail. I will try to help the people who really need
the help but please do not waste my time.
If you have a LOG file with the errors of the car please SEND the
log file along with the e-mail.
Send me some details about the car also : Make, model, year, engine
code, gearbox code,VIN number and please try to get the
codes... as many details about the problem as possible.
I RECEIVE INSANE HUGE AMOUNTS OF E-MAIL RELATED
TO DSG PROBLEMS LATELY AND I SIMPLY
DO NOT HAVE TIME TO ANSWER EVERYBODY ANYMORE , SORRY !!
WITH MANY PEOPLE I USE DAYS TO TRY AND DIAGNOSE
A PROBLEM AND AT THE END I DO NOT EVEN RECEIVE A "THANKS".
IF YOU THINK MY TIME IS WORTH SOMETHING
AND YOU REALLY NEED MY HELP PLEASE
MAKE A SMALL DONATION TROUGH PAYPAL.
DSG it is pretty strong in terms of mechanics ,
If you want to keep your DSG gearbox in good condition I would
recommend the following :
- Changing oil
before the 60.000km indicated in the book (I recommend 40-45.000km
as the gearbox is very sensitive about oil quality and you can never
drain it all)
- Do not overheat the car and do not push it to its limits when HOT.
- Keep the engine in good working condition (smallest problems can
influence how the gearbox changes and reacts).
- Once in a while check the rear wheel bearings on the rear wheels
(they have the ABS rings built in) and if you feel they are noisy
- Do not drive with the car in water that can go above your DSG
connector on the gearbox.
- Keep the engine room clean and once in a while (every 2-3 years)
clean all the earth connections in the engine bay.
- Check your fuel filter for oil residues and change it regularly.
(On some engines the vacuum pump tends to leak oil)
- Check the condition of the DMF and if it's noisy or it has play,
change it before it damages the clutches, drive shafts.
- Check Cooling fluid level regularly and if it drops below level
and you can not see where the water goes, check gearbox oil for
contamination. DSG oil coolers tend to break and oil contamination
Here is a detailed video on
how to change the Valves / Solenoids on your mechatronic unit.
Thank you in advance.
Here below is one of my old videos while I dismantled and put back
together the DQ250 Mechatronic unit.
Some more videos will come soon. This was a defective unit and I
have made the video just for documentation.
It was a long time ago when I was a noob :)
I can also flash new software to existing Mechatronic
units or repair them taking your old units in exchange.
I can also fix the CIRCUIT BOARD and not only the components in the
The Mechatronic units are intercheangeable
between car brand and model (no matter what your dealer said), they
just need to be re programmed / flashed to fit your car. If you want
to move one Mechatronic from one car to another I might be able to
help you with the software.
IF you need NEW mechatronic units please visit
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