Ask for an ignition coil for a late-model four-cylinder Volkswagen at most parts counters, and the first question won’t be about your car — it’ll be about the number molded into your old coil’s housing. That’s because Volkswagen ran two distinct coil part numbers across its small-displacement engines during the same production years, and ordering against the wrong one means a part that looks identical but doesn’t seat properly. The OSRAM OS1019 was built to collapse that confusion into a single SKU carrying both references: 04E905110B and 06L905110C.
Two OE Numbers, One Replacement Part
The dual numbering isn’t sloppy cataloging on VW’s part — it reflects two engine families sharing showroom space. The 04E prefix tracks back to the EA211-series engines (the 1.2 and 1.4 turbo units that powered millions of Golfs, Passats, and Audi A3 variants), while the 06L reference belongs to the later EA888 Gen 3 architecture. Same pencil-coil layout, same general look, but revised internals and connector geometry between generations.
Suffix letters matter here more than buyers expect. An earlier revision like 04E905110A supersedes to the -B version, and dealers will steer you to the current number every time. Aftermarket suppliers who consolidate superseded numbers onto one part save you that homework — but only if their cross-reference work is actually correct. That’s where this particular coil earns its shelf space: the listing groups both active references and maps them against four confirmed VW/Audi applications rather than the vague “fits most models” copy you see elsewhere.
The Fitment Map — and How to Verify It Before Ordering
Here’s the quick reference:
| Spec | Detail |
|---|---|
| Brand | OSRAM |
| Part type | Pencil (coil-on-plug) ignition coil |
| OE references | 04E905110B / 06L905110C |
| Compatible brands | Audi, Volkswagen |
| Mapped applications | 4 |
Four applications sounds narrow until you realize how many vehicles those cover globally. Still, narrow is exactly why pre-order verification pays off. My routine, in order:
- Pull a coil and read the housing. The OE number is molded into the plastic — no guessing from your VIN alone required.
- Match the full number, suffix included. A mismatched letter often signals a supersession, not a dead end, but you want to know which situation you’re in.
- Cross-check the connector. Pin count, latch orientation, and boot length should mirror your original exactly.
- Confirm against the seller’s application list, not just the OE number. Reputable listings publish both.
- If you’re doing a full set, order all four together so they come from the same production batch.
The OS1019 listing over at longweiparts.com publishes its application mapping openly, which puts it ahead of plenty of marketplace sellers who’d rather you find out about fitment after the return window closes.
When the Answer Is “Not This Coil”
Worth saying plainly: older VW engines used entirely different ignition hardware. The coil-pack era 2.0-liters, the FSI direct-injection units, and the five-cylinder stuff all take separate part numbers with nothing in common visually beyond the word “ignition.” If your engine bay shows individual coils with integrated spark plug connectors bolted by a single fastener each, you’re likely in pencil-coil territory — but confirm before clicking buy.
What This Part Deals With Once Installed
Transverse-mounted VW engine bays are brutal on ignition components. Heat soak from the exhaust side degrades winding insulation over years, and the classic symptom pattern shows up as a P0301-through-P0304 misfire code, cold-start shudder, or a flashing check engine light under load. OSRAM’s construction addresses the usual failure points — epoxy-potted windings resist moisture ingress and vibration, and the housing material holds up better in hot bays than the brittle plastics on some budget coils I’ve handled.
One honest note: OSRAM built its reputation in vehicle lighting, and their ignition program is newer. That said, the parts are made to OE specification rather than “close enough,” and in my experience the fit-and-finish on the boot and terminal is where cheap coils give themselves away first. This one passes that inspection.
Replacement logic is simple: coils fail individually, but when one goes at higher mileage, its three siblings usually aren’t far behind. Shops that swap the full set eliminate the repeat customer with the same complaint two months later — and matched-batch coils make intermittent misfires easier to diagnose if one does develop.
Verdict: Who Should Buy, Who Should Keep Looking
Buy the OS1019 if your removed coil carries either the 04E905110B or 06L905110C reference and you want OE-spec output without dealer-counter pricing. Skip it if you’re running an older coil-pack engine or anything outside the mapped four applications — no amount of cross-referencing makes the wrong part right.
For anyone holding a failed coil with one of those two numbers stamped on it, the [OS1019 | OSRAM Ignition Coil | Fits Audi, Volkswagen | OE# 04E905110B
06L905110C](https://longweiparts.com/product/os1019-osram-ignition-coil-fits-audi-volkswagen-oe-04e905110b06l905110c/) is a straightforward, correctly-mapped replacement worth a look before you pay OE pricing.
Recommended Part: OS1019 – OE-quality aftermarket part, ready to ship.
