How to fix faulty NOX sensor VW AG 04L907805M Continental 5Wk97235

How to fix faulty VW AG 04L907805M
Continental 5WK97235 NoxC3 sensor?

• Run diagnostic for your VW car
• If fault codes points to the NOX sensor.
Get in touch with
Via
info@xenons4u.co.uk
For advice and spare parts

Order spare parts for DIY fix, there is no need to spend
a fortune to fix it.

We have prepared a guide how to fix
faulty Nitrogen Oxide sensor

Step 1:
Let's begin fixing NOX sensor's
malfunction.
Remove faulty control unit from
your VW vehicle.

Step 2:
Prepare tools:
• Cutter
• tape
• soldering
• other required tools

Step 3:
• Pull down black protection rubber
• Get access to carry on with work .
• Make sure it is tightly gripped.
• Use tape, pegs etc.

Step 4:
Split cables using:
• Sharp cutting tool
• Knife
• Scissors
Please note,
DO NOT cut all wires at the
same location, cut them in different
length for proper fix.

Step 5:
This how you should end up,
when old probe is splitted
from the sensor.

Step 6:
• Use heat shrink tubes for proper fix.
• Put tubes on each of the wire.

Step 7:
• Get a new NOX sensor probe
from Xenons4U.
• Gently wrap up connectors with old
probe.

Please note,
It is very very important to make sure each wire is wrapped up correctly.
Otherwise sensor will NOT work properly and show up with fault codes.
Some common error codes
• P229F
• P229E
• P2201

Step 8:
Use soldering tools to metal
each cable's connection for a
long lasting fix.

Step 9:
After soldering wires you
should end up with the
same results as in our
picture

Step 10:
• Move heat shrink tubes on the
soldered places.
• Apply heater on wire.
• Let them surround soldered places
properly.
Once done wait few minutes until it is
cooled down

That's it!
Your NOX sensor is now fixed and
could be fitted back to your car.

Please note, it is very important to drive a car for around 100
KM/Miles to let car's ECU to get new values and reset the
SCR system, afterwards fault code will disappear.

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