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Engine Oil Fluid Level Sensor 6PR008079 — 2026 Technical Consensus & OEM Cross-Reference for Audi A4, A6, Volkswagen Passat, Jetta
- Audi A4 (1997-2008) and A6 (1998-2011) saloons and wagons
- Volkswagen Passat: B5 (1998-2005), B6 (2006-2010), 06E variant through 2004-2018
- Jetta and Bora: Mk4 (1999-2005), Mk5 (2005-2010)
- Golf Mk4 (1999-2006) and New Beetle (1998-2010)
A full dipstick plus a yellow low-oil icon means the level sensor, not the oil. The 6PR008079 engine oil level sensor for the Audi A4, A6, Passat and Jetta ($47.49) is the direct replacement.
Your cluster runs two separate oil warnings. One watches the oil in the pan. The other watches pressure in the oil galleries — the passages that feed the engine.
How this sensor reads the sump
There is no float. A small element in the sump wall gets pulsed hot, and the electronics watch how fast it cools.
Oil pulls heat away far faster than air. An element under oil cools quickly; an element above the surface cools slowly. That speed becomes a simple level state.
- The heated element is the wear part.
- Age and coked oil insulate it where the measurement happens.
- An insulated element cools slowly even while submerged, and your cluster reads that as low oil.
Yellow icon or red icon
Treat the two icons as different problems. Yellow is a capacity question. Red is a stop-the-engine emergency.
- Level sensor: a heated element in the pan wall. Yellow icon, safe to drive to the parts counter.
- Pressure switch: a spring switch in the gallery. Red icon once it has stayed open about 0.5 s above 1500 rpm with coolant near 60 °C.
A red icon means pull over and shut off. If the dipstick is full, the car stays parked until a mechanical gauge has read the pressure port.
The same split runs on every platform. The oil pressure switch guide for the Suzuki DF40-DF300 four-stroke outboards is a mirror image of this article.
How a failing sensor announces itself
Four symptoms cover almost every failure. Run them before you order anything.
- The warning survives a refill. The dipstick reads full and the icon still comes back. On a car that does not use oil, that loop is the sensor.
- The scan shows a B1041-range code. B104129 and B104135 mean the level sensor signal is too high or too long. With a live warning, that is close to a conviction.
- The fault only shows in one band. A partly coked element reads right with a brimming sump and wrong in the lower half. That is why the fault comes and goes.
- Oil sits where it should not. A weeping seal wicks oil up the harness into the connector. A soaked plug survives a new sensor.
One more clue: a warning right after an oil change points at a pinched O-ring from that service, not a worn element.
| Reference | Value | What it means at the counter |
|---|---|---|
| HELLA 6PR 008 079-02 | VAG 1J0907660B | The Jetta/Bora/Golf Mk4, Passat B5 and Audi A4/A6 generation sensor |
| HELLA 6PR 008 079-05 | VAG 06E907660 (also sold as VEMO V10-72-1087) | The later 06E engine family variant — same principle, different suffix and connector check |
| HELLA 6PR 008 079-071 | VAG 1J0907660C / 1J0907660F, Porsche 94860614000 | Late revision of the same sump housing; match by connector before ordering |
| Mounting | Lower oil pan | OEM diagrams ship the sensor together with the pan — it sits in the sump wall, not the head |
| Signal type | Digital level state from a heated bridge element | Not a float and not ultrasonic; a reading only counts after oil has drained back |
| Pressure trip logic | Switch open about 0.5 s above 1500 rpm with coolant near 60 °C | That is the red-light definition — a different system from the yellow level warning |
| Price band | $47.49 (6PR008079) against $226.65 dealer list for 06E907660 | Passat sensor replacement books at $248-$301 all-in, of which $106-$156 is labor |
Reading the suffix before you order
Match the part by engine family and connector shape, not by model year alone.
- 1J0907660B (HELLA -02): Mk4-era Jetta, Bora, Golf and Beetle, the B5 Passat, and the shared Audi A4/A6 generation. The C5 A6 Quattro (2000-2004) takes the same part, listed as a direct oil level sensor for the 2000-2004 Audi A6 Quattro.
- 1J0907660C / 1J0907660F (HELLA -071, Porsche 94860614000): the late revision of the same sump housing.
- 06E907660 (HELLA -05, VEMO V10-72-1087): later Passats and the 06E engine family. Sold as the 06E907660 oil level sensor for the Seat Ibiza, Leon, Toledo, Beetle, Passat and Golf.
Connector not matching the photos? Settle it before ordering: send the VIN and a photo through the request for a quote page.
Replacement: the O-ring is the job
The sensor sits in the wall of the lower oil pan. That is why OEM diagrams ship it with the pan.
The sequence is short:
- Drain the oil first. Reach the sensor from below with the undertray dropped, or from above once the intake plumbing is out.
- Unplug the sensor and release its retaining fastener.
- Lift the body out of the sump.
- Fit a new O-ring. The old ring has lived in hot oil and never reseals once disturbed.
- Refill, then torque the fastener to the factory service manual value by hand. An impact driver cracks the plastic body.
Reuse is the most common reason the job turns into an oil weep. Where the body and the seal are sold separately, the ring is its own part. The oil level sensor O-ring gasket for the 1992-2008 BMW E-chassis era (E31 through E65) is that part.
Before you judge the new part: fill to the mark, run the engine briefly, then shut off. Give the oil ten to fifteen minutes on level ground, longer after a hard drive.
The same job on other platforms
The heated-element sump sensor is how most late-model engines measure oil.
- BMW (2009-2018): level and temperature in one pan-mounted body on the 335i, 535i, 550i, 740Li, 750Li and X1 through X6. The oil fluid level sensor for the BMW X1-X6 and 535i/550i/740Li platforms ($60.28) covers it.
- Volvo (2003-2016): sensor 30774625 on the C30, V70, XC60, XC70 and first-generation XC90. The 30774625 oil level sensor for the Volvo C30, V70 and XC range is that part.
- Most of these parts and their neighbours sit in the KOEEP parts catalog.
The yellow-icon logic reaches past the sump too. Washer, coolant and brake reservoirs run the same level-switch idea.
The washer fluid level sensor guide for the Nissan 350Z (2003-2009), Quest (2004-2009), Sentra (2007-2012) and the Infiniti Q60/QX80 (2014-2020) covers that side system by system.
- Park on level ground, engine off. Wait ten to fifteen minutes at minimum.
- Read the dipstick, wipe it, re-read it. Trust the stick over the dash.
- Level full? Yellow points at the sensor or its wiring. Red ends the drive and calls for a gauge test.
- Unplug the sensor connector and look for oil that has wicked up the harness.
- A warning that survives a full stick is the element. First-minutes-only is drain-back.
Frequently asked questions
Is the 6PR008079 sensor the same part as 1J0907660B?
Yes. 6PR 008 079 is HELLA's number for the same sump-mounted thermal sensor. The suffixes map: -02 to 1J0907660B, -05 to 06E907660, -071 to 1J0907660C/1J0907660F.
What is the difference between the oil level sensor and the oil pressure switch?
The level sensor watches the pan and gives the yellow warning. The pressure switch watches circulation and gives the red one. It trips once it stays open about 0.5 s above 1500 rpm with warm coolant.
Can a failing oil level sensor trigger the red oil pressure warning?
No. The two sit on separate circuits. A red icon means shut off and verify pressure with a mechanical gauge.
Why does my low oil warning come back after I add oil?
An aged or coked element cools slowly even while submerged, and the cluster reports that as low. On a car that uses no oil, the warning is the sensor.
Where is the sensor located, and does the oil have to be drained?
It sits in the wall of the lower oil pan. Yes — the sump must be empty to open the hole, and the refill is what compresses the new O-ring.
Can the old O-ring be reused if it looks fine?
No. It has hardened in hot oil and will not reseal once disturbed. Fit a new ring and torque to the factory service manual value.
How long after adding oil is the level reading accurate again?
Only once the oil has drained back: ten to fifteen minutes on level ground, overnight after a hard drive.
Settle the suffix, then fit the sensor once
The 6PR008079 family, the 06E907660 variant and the matching seals are in stock. So are the Audi A6 Quattro version and the BMW and Volvo equivalents. Sending a VIN for a fitment check? Request a quote, email support@koeep.com, or WhatsApp +86 181 3883 8291.
- HELLA 6PR 008 079 to VAG 1J0907660B, 06E907660 and 1J0907660C/F per HELLA and aftermarket catalogs (6PR008079 / 1J0907660B listing)
- Heated-bridge level-sensing principle: E46Fanatics thread; technical overview (Scribd)
- Digital (non-analogue) output: Audi A2 Owners Club bench test
- Red-warning window (about 0.5 s open above 1500 rpm, coolant above 60 °C): Audizine
- Red-light severity and pressure-switch function: GoWesty
- B104135/B104129 level sensor signal codes: Volkswagen Forum UK
- 06E907660 pan mounting and $226.65 list: VW OEM Parts Online; VW Marin
- Passat replacement cost $248-$301 with $106-$156 labor: RepairPal
- Torque values and refill-and-drain-back procedure: VW/Audi factory service manuals