Why Cross-Brand Compatibility Matters for Audi Owners
If you’ve ever replaced a parking sensor on a modern Audi, you know how quickly part numbers multiply. One sensor for the front bumper, another for the rear, a different version for the A8 versus the Q7. But many OEM sensors aren’t unique to a single model. Automakers reuse components across platforms to cut development and production costs, and the same logic applies to aftermarket replacements.
The OS-PASA003 is built on that principle. It’s a single sensor that covers five Audi applications, all sharing the same electrical specs, mounting dimensions, and color-coded connectors.
Platform Sharing Explained: Why One Sensor Fits Many Audis
Audi (like the rest of the VW Group) uses common platforms—think of them as a shared foundation. The MLB platform, for example, underpins the A4, A5, Q5, and A6 of certain years. When you design a parking assist system for that platform, the same sensor works across all those cars. Minor trim differences might change the paint code, but the sensor’s working end is identical.
The OS-PASA003 originally crossed to OE numbers 7H0919275C and 4B0919275E. That “4B” prefix points to the Audi A6 (C5 generation), while “7H” shows up on the Audi Q7 (4L) and Touareg—same parent platform, same sensor.
Fitment Table: OS-PASA003 Compatible Audi Models
| Audi Model | Generation / Years (approx.) | Notes |
|---|---|---|
| A6 | C5 (1998–2005) | Rear bumper, outer positions |
| A8 / S8 | D2 (1998–2003) | Front or rear – verify position |
| Q7 | 4L (2006–2015) | Rear bumper, outer positions |
| Allroad | C5 (2000–2005) | Rear bumper |
| A8 | D3 (2003–2010) | Rear bumper – check connector shape |
Note: Years are approximate. Always compare the physical connector and mounting collar with your original sensor before installation.
How to Confirm the OS-PASA003 Fits Your Audi
Cross-reference doesn’t mean “guaranteed for every trim.” Here’s what to do:
- Check your old sensor’s OE number. If it ends in 7H0919275C or 4B0919275E, you’re good.
- Count the pins. This sensor uses a 3-pin connector.
- Measure the hole diameter. Standard parking sensor hole is ~18 mm. If yours matches, the OS-PASA003 will snap in.
Recommended Part
If you’ve confirmed your Audi’s OE number matches the list above, the OS-PASA003 | OSRAM Parking Sensor | Fits Audi | OE# 7H0919275C, 4B0919275E gives you OSRAM quality (who also supplies OEMs) at a fraction of the dealer price. One part, five vehicles, no hunting through catalogues.
FAQ
Can I use the OS-PASA003 on a Volkswagen or Porsche?
The product specifications list only Audi compatibility. While the OE cross to 7H0919275C appears on some VW Touareg and Porsche Cayenne models, always verify the connector and resistance values before installing. For a pure Audi repair, this sensor is a direct match.
Why do parking sensors from different Audi models share the same OE number?
Audi engineers reuse parts across models built on the same platform or using the same wiring harness architecture. The sensor’s function—ultrasonic detection—doesn’t change between an A6 and a Q7; only the bumper shape and paint color differ. The electrical characteristics remain identical.
Does the OS-PASA003 come pre-painted?
No. The sensor comes in a standard matte black finish. You’ll need to paint it to match your bumper (or leave it black if your bumper is already dark). Most body shops can color-match easily.
How do I know if the sensor is defective versus a wiring issue?
Connect the suspect sensor to a known-working plug (or swap with a good side). If the fault moves with the sensor, replace it. If the same position still shows error, check the wiring or module. The OS-PASA003’s resistance should match the OE spec—typically around 0.5–1.5 kΩ depending on the controller.
