System description - Tyre Pressure Monitoring System with indirect measurement (Tyre Pressure Loss Indicator)
Each time a wheel is changed, the system must be reprogrammed, irrespective of whether the same wheel is fitted in this position on the vehicle or a different wheel.
These versions are based on the conditions valid in the European Union and no guarantee can be provided for their completeness.
General information:
The tyre pressure monitoring system is part of the software in the ABS control unit -J104-. The system is used to detect slow tyre pressure loss from a wheel. Event memory entries for the Tyre Pressure Loss Indicator are stored in the ABS control unit -J104-. The Tyre Pressure Loss Indicator compares the speed and the rolling circumference of the individual wheels via the ABS sensors.
After the following work or modifications, the tyre pressure monitor display button -E492- must be pressed and held until a confirmation is sounded.
♦ Change in tyre pressures
♦ Changing one or more wheels
♦ Interchanging wheels, e.g. from front to rear
♦ Removing and fitting one or more wheels
A change in a wheel's rolling circumference will be indicated by the tyre pressure monitor warning lamp -K220- lighting up in the dash panel insert. A tyre's rolling circumference may change as a result of:
♦ Insufficient tyre pressure
♦ Structural tyre damage
♦ Uneven load distribution in the vehicle
♦ Increased load on one axle, e.g. due to towing a trailer
♦ Use of snow chains.
♦ Temporary spare wheel installed
♦ Wheel renewal
System fault in the ABS system
If a fault in the ABS is displayed by the ESP and TCS warning lamp -K155- then the Tyre Pressure Monitoring System warning lamp -K220- will also light up. However, no fault will be stored in the Tyre Pressure Loss Indicator system.
The warning lamp cannot be erased. In this case, carry out the following steps:
– Connect → Vehicle diagnostic tester and select “Guided Fault Finding” → Vehicle diagnostic tester.
Follow instructions on screen to perform basic setting.
Note
Depending on vehicle, the basic setting is performed in different ways.
Carrying out basic setting of Infotainment system
– Switch on ignition.
– Switch on Infotainment system.
– Press Infotainment button CAR.
– Press Setup function button.
– Press Tyres function button.
– Press Set function button.
– Press Confirm function button.
Carrying out basic setting using the SET button
● Ignition must be switched on.
● Handbrake of vehicle must be applied.
– Push SET button in centre console until an audible signal sounds.
An audible signal confirms that basic setting has been performed.
System description - Tyre Pressure Monitoring System with direct measurement (with tyre pressure sensor)
♦ If the wheels that originally came with the vehicle are replaced, ensure that the new wheels are equipped with tyre pressure sensors which are compatible with the factory-fitted Tyre Pressure Monitoring System → Chapter.
♦ New wheels with tyre pressure sensors will be identified and integrated in the system. For the new wheels to be detected, the vehicle must be driven for a while at a speed greater than 25 km/h (15 mph).
♦ When replacing or relocating tyre pressure sensors, always use a new set of valves and gaskets → Electronic parts catalogue (ETKA).
♦ Fitted wheels that have no tyre pressure sensors or incompatible ones are not able to recognise the tyre pressure control. The Tyre Pressure Monitoring System is then incapable of measuring the tyre inflation pressure. A malfunction is displayed or the system switches off.
These versions are based on the conditions valid in the European Union and no guarantee can be provided for their completeness.
Button behaviour - Tyre Pressure Monitoring System with direct measurement (with tyre pressure sensor)
Vehicles without Infotainment system
The driver can switch between partial and full load, poll the status and switch the Tyre Pressure Monitoring System on or off via button SET in the centre console.
Note
This button is not available for the North American region (NAR).
Messages and warnings are indicated via the lamp in the dash panel insert and texts in the dash panel insert display.
This table shows the button's behaviour in the case of various states or actions under consideration of different functions. Time for which the button is pressed Up to 2 seconds3-7 seconds8-10 seconds11-15 secondsState or actionActual statusSwitchConfirmSwitch off Messages:Messages:Messages:Messages:Desired functions: Switch from full to partial loadFull tyre load monitored
(gong)Partial tyre load on!On release:
Confirmation of switching via gong Switch from partial to full loadPartial tyre load monitored
(gong)Full tyre load on!On release:
Confirmation of switching via gong Switch onTPM off!Partial tyre load on!On release:
Confirmation of switching via gong Switch offFull tyre load monitored
or
Partial tyre load monitored
(gong)Partial tyre load on!
or
Full tyre load on! TPM off!
(gong)Status queryFor example:
TPM off!
or
Partial tyre load monitored
(gong)After releasing:
Press longer to activate!
or
Press longer to switch or deactivate!
System description - Tyre Pressure Monitoring System, Tyre Pressure Monitoring System (TPMS) with autolocation
♦ As previously the system is based on sensors in the tyres, the sensors send the inflation pressure data to the Tyre Pressure Monitoring System control unit -J502-.
♦ The function “autolocation” allows the system to react over a relatively short distance, sending inflation pressure and warnings correctly to the display in the dash panel insert.
♦ The “intelligent aerial” is a combined Tyre Pressure Monitoring System control unit and a central receiver aerial.
♦ Manual calibration is not necessary after renewing wheel electronics or changing a set of tyres. The Tyre Pressure Monitoring System automatically identifies new tyre pressure sensors and programs these as soon as driving commences.
Overview of fitting locations - Tyre Pressure Monitoring System (TPMS) with autolocation
Note
The vehicle shown in the illustration is an example for any vehicle equipped with Tyre Pressure Monitoring System (TPMS) with autolocation. It is only used to demonstrate the fitting locations.
1 - Rear left tyre pressure sensor -G224-
❏ Removing and installing → Chapter
2 - Front left tyre pressure sensor -G222-
❏ Removing and installing → Chapter
3 - Front right tyre pressure sensor -G223-
❏ Removing and installing → Chapter
4 - Rear right tyre pressure sensor -G225-
❏ Removing and installing → Chapter
5 - Tyre Pressure Monitoring System control unit -J502-
❏ Removing and installing → Chapter
❏ Location: on right rear mounting bracket
6 - Bracket for Tyre Pressure Monitoring System control unit -J502-
❏ Removing and installing → Chapter
Assembly overview - tyre pressure sensor, tyre pressure sensor with valve
1 - Tyre pressure sensor
❏ Supplied complete as spare part.
❏ Removing and installing → Chapter
❏ Replace complete tyre pressure sensor when battery is dead
❏ After using breakdown set, wipe clean hole for valve and opening for pressure sensor
2 - Valve insert
❏ Allocation → Electronic parts catalogue (ETKA)
❏ Always renew when changing tyre
Note
Always use a Genuine valve insert only. It has a special coating!
3 - Sealing disc
❏ Will be slightly deformed when the union → Item nut is tightened
4 - Seal
5 - Wheel
❏ Fitting tyres with run-flat properties → Chapter
❏ Fitting tyres of wheels with tyre pressure monitoring → Chapter
6 - Union nut
❏ 4 Nm
7 - Valve cap
❏ Use only genuine valve caps from repair set → Electronic parts catalogue (ETKA).
❏ Do not use convenience valve caps or metal valve caps.
Assembly overview - tyre pressure sensor, tyre pressure sensor without valve, version 1
1 - Valve cap
2 - Nut
❏ Separate part of → Item.
❏ 4 Nm
❏ Renew after each removal
3 - Washer
❏ Separate part of → Item.
4 - Wheel
❏ Fitting tyre → Chapter.
5 - Seal
❏ Separate part of → Item.
6 - Valve insert
❏ Always renew when changing tyre
Note
Do not use brass valve cores. Only use nickel (silver) valve cores (to prevent corrosion).
7 - Metal valve
❏ Supplied as spare part complete with bolt → Item
❏ Removing and installing → Chapter
8 - Bolt
❏ Torx bolt (service dept. variant)
❏ Separate part of → Item.
❏ 4 Nm
❏ Square-head bolt with flat head (production variant)
9 - Tyre pressure sensor
❏ Front left tyre pressure sensor -G222-
❏ Front right tyre pressure sensor -G223-
❏ Rear left tyre pressure sensor -G224-
❏ Rear right tyre pressure sensor -G225-
❏ Removing and installing, service dept. variant → Chapter
❏ Removing and installing, production variant → Chapter
Note
Tyre pressure sensors have service life of approx. 10 years.
Assembly overview - tyre pressure sensor, tyre pressure sensor without valve, version 2
1 - Tyre pressure sensor
❏ Front left tyre pressure sensor -G222-
❏ Front right tyre pressure sensor -G223-
❏ Rear left tyre pressure sensor -G224-
❏ Rear right tyre pressure sensor -G225-
❏ Removing and installing → Chapter
2 - Bolt
❏ Square-head bolt with flat head
❏ Is supplied as a replacement part complete with the tyre pressure sensor → Electronic parts catalogue (ETKA)
3 - Metal valve
❏ Is supplied as a replacement part complete with the tyre pressure sensor → Electronic parts catalogue (ETKA)
4 - Valve insert
❏ Always renew when changing tyre
5 - Wheel rim
6 - Union nut
❏ 4 Nm
♦ When tightening, do not use metal valve as a counterhold.
♦ The result of a disc being placed in the union nut is that the metal valve is first screwed onto the tyre pressure sensor when the nut is tightened. The tyre pressure sensor is screwed onto the rim after the disc breaks.
❏ Renew after each removal
7 - Valve cap
Removing and installing tyre pressure sensor, tyre pressure sensor with valve
Removing
– Unscrew union nut -1-.
– Remove tyre pressure sensor -2- from rim well.
Installing
– Clean valve hole.
– Insert tyre pressure sensor -2- with new seal and sealing washer.
– Press tyre pressure sensor -2- into the wheel rim at the points marked by -arrows-.
– Screw union nut -1- from outside onto tyre pressure sensor.
– Press tyre pressure sensor -1- onto bed of rim at the points marked by -arrows- and tighten union nut to specified torque.
Note
♦ Tighten union nut only to the specified torque.
♦ The sealing washer -2- will be deformed slightly when tightened.
♦ The sealing washer may be installed only once. Install a new sealing washer with rubber seal every time the part is fitted.
♦ Further tightening of the union nut is not permitted because the seal may be damaged, leading to leaks.
Specified torques
♦ → Chapter „Assembly overview - tyre pressure sensor, tyre pressure sensor with valve“
Removing and installing tyre pressure sensor, tyre pressure sensor without valve, version 1 (customer service version)
Removing
– Remove tyre from wheel → Chapter
Before proceeding any further, check to determine which variant is installed.
I - Technical Support variant
In the Technical Support variant the tyre pressure sensor is attached to the valve with a bolt with an internal Torx head -1-.
If the customer service version is installed, the following repair procedure applies → Anchor.
II - Production version
In case of the production version, the tyre pressure sensor is secured on the valve by means of a flat square head bolt -2-.
If the production version is installed, the following repair procedure applies → Anchor.
– Remove bolt -arrow- for tyre pressure sensor -1-.
– Counter-hold on metal valve (for example using 2 mm drill bit).
Installing
– Clean valve hole.
– Press tyre pressure sensor -1- against wheel rim and tighten -arrow-.
– Counter-hold on metal valve (for example using 2 mm drill bit).
Note
♦ After installation, perform a visual check and ensure that all components are seated securely. The tyre pressure sensor -1- must be bolted on without clearance with its supporting base resting in the drop centre of the rim.
♦ The bolt must not be retightened to specified torque after the installation has been completed.
Specified torques
♦ → Chapter „Assembly overview - tyre pressure sensor, tyre pressure sensor without valve, version 1“
Removing and installing tyre pressure sensor, tyre pressure sensor without valve, version 1 (production version)
Perform the following steps:
Removing
– Remove tyre from wheel rim.
Before proceeding any further, check to determine which variant is installed.
I - Technical Support variant
In the Technical Support variant the tyre pressure sensor is attached to the valve with a bolt with an internal Torx head -1-.
If the customer service version is installed, the following repair procedure applies → Anchor.
II - Production version
In case of the production version, the tyre pressure sensor is secured on the valve by means of a flat square head bolt -2-.
If the production version is installed, the following repair procedure applies → Anchor.
– Turn nut -1- anti-clockwise until tyre pressure sensor -2- can be removed.
Note
♦ When the nut -1- is turned, the valve turns as well.
♦ The tyre pressure sensor must always be renewed together with the metal valve → Electronic parts catalogue (ETKA).
– Remove metal valve → Chapter.
Installing
Note
♦ The tyre pressure sensor must always be renewed together with the metal valve → Electronic parts catalogue (ETKA).
♦ The new metal valve is offered with a new bolt as a repair kit.
– Clean valve hole.
– Install metal valve → Chapter.
– Press tyre pressure sensor -1- against wheel rim and tighten using new bolt -arrow-.
– Counter-hold on metal valve (for example using 2 mm drill bit).
Note
♦ After installation, perform a visual check and ensure that all components are seated securely. The tyre pressure sensor -1- must be bolted on without clearance with its supporting base resting in the drop centre of the rim.
♦ The bolt must not be retightened to specified torque after the installation has been completed.
Specified torques
♦ → Chapter „Assembly overview - tyre pressure sensor, tyre pressure sensor without valve, version 1“
Removing and installing tyre pressure sensor -G222-/-G223-/-G224-/-G225-, version 2
Special tools and workshop equipment required
♦ Torque wrench -VAS 6583-
Removing
Note
It is not required to renew the tyre pressure sensor with metal valve in the course of a regular tyre change.
– Remove tyre from rim → Chapter.
– Turn nut -1- anti-clockwise until tyre pressure sensor -2- can be removed.
Note
When the nut -1- is turned, the valve turns as well.
Installing
● Always renew the metal valve completely.
● The hexagon flange nut may only be used once.
● To avoid corrosion, only nickel (silver) valve cores may be used.
● Only use air-tight plastic caps as valve caps.
● In the event of a damage, the affected valve must be renewed completely.
● Always renew tyre pressure sensors and valves when damaged.
● Never use steam cleaners or compressed air for cleaning the tyre pressure sensor.
● Always clean the tyre pressure sensor after application of tyre sealant. The bore to the pressure sensor in the housing must not be blocked. Cleaning the bore with compressed air is not permissible.
● When installed, the original final specified torque is reduced. Re-tightening the flange nut is not permissible.
– Clean valve hole.
– Insert tyre pressure sensor -1- with valve through valve hole from inside.
– Screw hexagon flange nut from outside approx. 3 turns onto tyre pressure sensor.
– Lightly press tyre pressure sensor -1- into rim well until both feet of sensor contact rim well.
– Tighten hexagon flange nut on tyre pressure sensor -1- to specified torque.
Note
♦ When tightening, do not use metal valve as a counterhold.
♦ When the hexagon flange nut is being tightened, a rib in the nut breaks leading to a short-term reduction of the specified torque.
♦ After the rib is broken, tighten hexagon flange nut further to the specified torque.
A - Extension (commercially available)
B - Torque wrench -VAS 6583-
– Perform visual inspection and check for firm seating. The tyre pressure sensor must be secured without clearance with support feet resting in the rim well.
NOTICE
Risk of damage to the sensor as a result of improper assembly.
– Once tightened to the specified torque, the sensor must not be re-tightened.
– Screw valve cap onto valve.
– Fit tyre on rim → Chapter.
Specified torques
♦ → Chapter „Assembly overview - tyre pressure sensor, tyre pressure sensor with valve“
Removing and installing Tyre Pressure Monitoring System control unit -J502-, Arteon 2018, Arteon 2021, Arteon Shooting Brake 2021, Passat 2015, Passat Estate 2015, Passat 2019, Passat Estate 2019
Fitting location:
The Tyre Pressure Monitoring System control unit -J502- is fitted on the right of the rear cross panel.
Removing
– Switch off ignition.
– Remove rear right underbody cladding → General body repairs, exterior; Rep. gr.66; Underbody cladding; Overview of fitting locations - underbody cladding.
– Press together tabs -arrows-, and swing bracket -1- in -direction of arrow A-.
– Remove bracket -1- in -direction of arrow B-, and hold it.
– Disconnect connector -2- from Tyre Pressure Monitoring System control unit -J502- -1-.
– Remove bracket -3- with Tyre Pressure Monitoring System control unit -J502- -1-.
– Press lug -arrow- slightly upwards and withdraw Tyre Pressure Monitoring System control unit -J502- -1- from bracket.
Installing
Install in reverse order.
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