The Signal Guard | OEM-Spec TPMS Sensor Set for Audi/VW/Porsche 433MHz

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説明

A tyre pressure monitoring sensor is the only component of your car that holds a 2,000-pound vehicle away from the asphalt at 343 times its own weight in kinetic energy. It lives inside the wheel, exposed to road salt, brake dust, pothole impacts, and thermal cycles from -30°C Alaskan winter mornings to 650°C braking-surface neighbours on a July descent. When it fails, the dashboard lights up with a warning that most drivers ignore for three thousand miles and a prayer. A good TPMS sensor does not merely report pressure. It survives everything the road throws at it and reports pressure anyway.

The Signal Guard TPMS sensor is an OEM-specification replacement for the VAG 5Q0 907 275B platform used across Volkswagen, Audi, Porsche, and SEAT vehicles from 2012 onward. It operates at 433 MHz with auto-learn protocol — no specialised programming tool required for activation. The sensor automatically transmits pressure and temperature data at rolling intervals of approximately 60 seconds, and enters a deep-sleep mode below 25 km/h to extend battery life. The factory-installed CR2032 lithium cell is sealed in a two-part epoxy housing rated for 5-7 years of typical European driving cycles.

Each sensor ships pre-calibrated to the 5Q0 907 275B frequency and protocol. A simple drive cycle above 25 km/h for 10 minutes triggers the auto-relearn sequence — the car's receiver learns the new sensor IDs without dealer-level diagnostic equipment. For shops performing mass replacements, an optional LF trigger tool (sold separately) can initiate the learn procedure in under 2 seconds per wheel. The valve stem assembly uses a 433 MHz-compatible rubber grommet with brass insert, torqued to the standard 4 N-m spec that Audi and VW service manuals specify, and the hex-nut cap uses the common 11 mm tool fitment found in every roadside emergency kit.

A TPMS sensor is a two-decade reliability bet cast in epoxy and button cells. The Signal Guard is engineered to win that bet.

Key Features

  • ✦ Auto-learn protocol — no programming tool required; sensors self-register after a 10-minute drive above 25 km/h
  • ✦ 433 MHz operating frequency — direct OEM replacement for VAG 5Q0 907 275B platform (Audi A3/A4/A5/Q3/Q5/Q7, VW Golf/Passat/Tiguan, Porsche Cayenne/Macan)
  • ✦ CR2032 lithium cell sealed in two-part epoxy housing — 5-7 year battery life under normal driving conditions
  • ✦ Smart sleep/wake cycling — deep sleep below 25 km/h to conserve battery, 60-second transmission interval when active
  • ✦ OEM-spec brass valve stem with rubber grommet and 11 mm hex cap — 4 N-m torque spec, direct swap with factory sensor

Technical Specifications

  • Frequency: 433 MHz (OEM VAG spec)
  • Protocol: Auto-learn (self-activating via drive cycle)
  • OEM Part Number: 5Q0 907 275B, 5Q0907275B
  • Battery: Sealed CR2032 lithium cell, 5-7 year lifespan
  • Transmission interval: 60 seconds (active), deep sleep (<25 km/h)
  • Pressure range: 0-870 kPa (0-126 PSI)
  • Temperature range: -40°C to +125°C
  • Valve stem: Brass with rubber grommet, 11 mm hex cap
  • Torque spec: 4 N-m (valve stem nut)
  • Enclosure: Two-part epoxy sealed, IP67-rated against moisture ingress

Application Scenarios

The Signal Guard sensor set is the primary replacement option for independent European auto repair shops that service Audi and VW vehicles under warranty or extended-service plans. The set of four sensors covers a complete wheel replacement in a single stock-keeping unit, eliminating the need to source individual OEM sensors at dealer markup. Fleet operators maintaining multiple VAG-platform vehicles — corporate Audi Q5 fleets, Volkswagen Golf rental pools, Porsche Macan dealer demonstrators — benefit from a single sensor part number that works across the entire fleet. Individual owners replacing a single failed sensor will find that the auto-learn protocol avoids the 50-dollar reprogramming charge that most tyre shops add for non-OEM sensors. The 5-7 year battery cycle means the replacement interval aligns with typical tyre life, so the sensor can be installed during a routine tyre replacement without scheduling a separate service visit.

Frequently Asked Questions

Q: Will this sensor work with a 2018 Audi Q5 with factory TPMS?

A: Yes. The 433 MHz 5Q0 907 275B platform covers Audi Q5 models from 2012 to 2024 model years. The auto-relearn procedure will activate after a 10-minute drive above 25 km/h — no additional programming is required.

Q: Do I need to replace all four sensors at once, or can I replace just one?

A: You may replace individual sensors. The auto-learn system identifies each sensor by its unique ID and integrates it into the existing network. However, if three of your sensors are over 5 years old and the fourth fails, the remaining three are likely near end-of-life and we recommend replacing all four as a set to avoid a cascade of service visits.

Q: How do I trigger the auto-learn procedure after installation?

A: After installing the sensors and inflating all tyres to the correct pressure, simply drive the vehicle above 25 km/h (15 mph) for a continuous period of 10 minutes. The vehicle's TPMS control module will automatically detect and register the new sensor IDs. The low-pressure warning light will extinguish once all four sensors are recognised and reporting normal values.

Q: Are these sensors compatible with a VW Golf Mk7 R?

A: Yes. The Golf Mk7 and Mk7.5 (2013-2020) use the 433 MHz 5Q0 927 275B platform. The Signal Guard sensor is a direct drop-in replacement. Note that the Mk8 (2021+) uses a different TPMS protocol — please verify compatibility before ordering for a Mk8.

Q: Can these sensors be cloned to match the original sensor IDs?

A: The Signal Guard sensors ship with unique pre-assigned IDs and are not re-writable. Most VAG vehicles support the auto-learn protocol, making ID cloning unnecessary. If your specific vehicle requires cloned IDs, we recommend using a professional TPMS programming tool that supports the 5Q0 platform.

Customer Reviews

Customer Reviews

Based on 2 reviews
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A
Ahmed H.
Works on Porsche Cayenne too

Was not sure if these would work on my 2020 Cayenne but they paired perfectly after a short drive. The brass valve stem and 027 mm hex cap match factory fitment. Great alternative to expensive Porsche-branded sensors.

K
Karl M.
Direct replacement for VW Golf Mk7

Used to replace a failed sensor on my Golf GTI. The 433 MHz auto-learn worked exactly as described — the car recognised the new sensor after a 027-minute drive. No programming tool needed. Will order for my Audi Q5 next.

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