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However, the EU Directive does not stipulate which tyre pressure monitoring system should be used. Permitted are direct as well as indirect systems as long as they fulfil the requirements and conditions of ECE-R ECE-R64 only stipulates the functionality but not whether an original or aftermarket sensor is required. A display inside the vehicle informs the driver if one or more tyres lose pressure. If your vehicle is already equipped with a TPMS then you need to establish whether it is a direct or indirect system.
If your TPMS is a direct system then you should look for the following when purchasing wheels:. A direct system measures the tyre pressure via a sensor integrated in the wheel. This information is wirelessly transferred to a control device in the vehicle. Various displays of individual vehicle manufacturers enable the driver to read the current pressure values permanently or to receive just a warning when the tyre pressure is too low. Such systems are very precise since they directly monitor the pressure for each wheel.
Differences would occur if a pressure drop in the tires appears. In addition, pressure-dependent oscillations of the wheels are measured through advanced signal processing. A change will be considered a further indication of a loss of pressure.
A direct TPM-System allows for a very precise data collection and has additional functions like tyre position recognition, pressure loss detection when the vehicle is stationary and monitoring the tyre pressure of the spare wheel. A direct TPMS requires a significant extra effort and expenditure when changing tyres and during maintenance work.
All tyres summer, winter, spare of a vehicle must be equipped with a properly working sensor. An indirect TPMS is not as precise in its functionality since it neither measures the tyre pressure nor the tyre temperature. Also, it does not detect loss of pressure on the tyres when the vehicle is stationary. The use of TPMS when driving and maintaining a vehicle poses new challenges for the driver and workshops alike:. The vehicle owner will not be able to simply change a tyre by himself but will need the help of a specially qualified dealer in order to fit, calibrate and check the sensor of wheels with a direct TPMS.
Due to the EU-wide introduction of this technology, specialist dealers will train their staff and invest in the required equipment. Tyre mounting is a safety-relevant issue and requires expertise check of a condition of the tire, use the correct tightening torque, Therefore, we recommend this principle to only be carried out by a specialist dealer.
The AEZ parent company ALCAR offers a tailor-made industry solution: In addition to sensors, ALCAR also provides assembly tools, diagnostic and programming devices, service and spare parts kits as well as comprehensive consulting for all customers and partners.
Sensor or service kit assignments etc. Your form has been successfully sent to AEZ. You will receive a confirmation e-mail in a few minutes to the given e-mail address. Subscribe to our AEZ newsletter now and receive news, current events and competitions directly to your mailbox. You can easily unsubscribe from our newsletter any time.
After submitting your request you will receive an email where you will be asked to confirm your subscription and right away you will be updated with our AEZ news. TPMS fulfill 3 functions:. If your TPMS is a direct system then you should look for the following when purchasing wheels: Does the wheel design of your choice fulfil all requirements for fitting a TPMS sensor? Due to the complex technology of the TPMS, we recommend to use a specialist dealer. They have the relevant special tools and programming equipment for changing tyres, maintenance work and for any other problems e.
Therefore, the purchase of wheels is easy because nothing changes for AEZ customers. What are the differences between a direct and an indirect system? How does an indirect TPMS work? What are the advantages and disadvantages of these systems? What effects have TPM systems on maintenance and service? The use of TPMS when driving and maintaining a vehicle poses new challenges for the driver and workshops alike: The vehicle owner will not be able to simply change a tyre by himself but will need the help of a specially qualified dealer in order to fit, calibrate and check the sensor of wheels with a direct TPMS.
Direct TPM-Systems also bring the following new technical requirements: The need for maintenance of the valve and the gaskets with every wheel removal to prevent wear of the sensor For new tyres: new configuration of the sensors to the vehicle when new sensors new sensor ID are used or amending the wheel position of the sensors in order to ensure the clear communication between sensor and TPMS receiver The battery level of the sensors must be checked when changing tyres.
My vehicle is not equipped with a TPMS. A subsequent installation of a TPMS is not mandatory. Thank You! Close window. I hereby confirm the accuracy of the above information.
Wheel testing involves a series of tests that are carried out to meet vehicle OEM requirements or the specifications of test standards on bending fatigue, radial fatigue, biaxial impact, energy absorption, radial impact or torsion. We operate advanced wheel testing facilities that are equipped to conduct the full scope of tyre and wheel tests. Our experts are highly trained professionals who work extensively with top automotive OEMs and suppliers worldwide. Through this experience, we have developed a strong knowledge of manufacturer and vehicle OEM requirements. We also have the expertise to conduct testing on special wheels that are not covered by any standards, such as wheels for trucks, agriculture vehicles and other special vehicles. Magyar Hungarian.
World Forum for Harmonization of Vehicle Regulations
Sales to business customers only. A day full of new conclusions and experiences. Benefit from the TPMS intensive training for motor mechanics, tire mechanics as well as trainers for employees within the technical service with knowledge of tire mounting. Attention: The number of participants is limited to persons per training, in order to guarantee the best learning results. After the final examination is passed, each participant receives the certificate "Schrader tested TPMS mechanic".