Audi 3.0 TFSI Firing Order Diagram and Cylinder Numbering
Audi 3.0 TFSI firing order 1-4-3-6-2-5 with cylinder-bank numbering, interactive diagram, coil identification, diagnostics, FAQs, and source links.
The common Audi EA837 3.0 TFSI V6 firing order is 1-4-3-6-2-5. Bank 1 contains cylinders 1-2-3 and Bank 2 contains 4-5-6; confirm the engine code because ‘3.0 TFSI’ spans more than one technical generation.
The common Audi EA837 3.0 TFSI V6 firing order is 1-4-3-6-2-5. Bank 1 contains cylinders 1-2-3 and Bank 2 contains 4-5-6; confirm the engine code because ‘3.0 TFSI’ spans more than one technical generation. A firing order is the sequence in which the cylinders begin their power strokes. It is not the same thing as cylinder numbering, distributor-cap clock position, or ignition-coil connector order. Confusing those references can create a no-start, violent backfire, dead cylinders, or a diagnostic trail that looks like a fuel or mechanical problem.
Use the verified order only after identifying the engine family and camshaft. Classic engines can accept camshaft swaps that change the required sequence, while modern coil-on-plug engines have no distributor cap to route. The table, bank diagram, and procedure below keep those concepts separate and show how to confirm No. 1 on compression before moving any wires.
Interactive Audi 3.0L TFSI V6 firing-order diagram
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Select each cylinder to walk through the firing order. Cylinder-bank numbering and distributor direction must match the identified engine family.
Audi 3.0 Tfsi Firing Order Diagram
| APPLICATION / ITEM | SPECIFICATION | NOTES |
|---|---|---|
| EA839 DLZA firing order | 1-4-3-6-2-5 | Audi technical-training table |
| Bank 1 | Cylinders 1-2-3 | Bank containing cylinder 1 |
| Bank 2 | Cylinders 4-5-6 | Confirm installed-engine orientation |
| Ignition | Coil-on-plug | PCM controlled; no distributor routing |
The supercharged EA837 and later turbocharged EA839 are not interchangeable service layouts even where their basic combustion sequence is shared.
What Audi documents for the EA839 DLZA
Audi's technical-training table identifies the 3.0L TFSI EA839 engine code DLZA as a 90-degree V6 and lists firing order 1-4-3-6-2-5. That is a direct application point, not permission to use an EA839 component-location diagram on every vehicle advertised as 3.0 TFSI.
The firing order describes combustion events. It does not describe the physical arrangement of cylinders, the order of coil connectors in the harness, or a scan tool's display order. Keep those references separate during diagnosis.
Why the engine code belongs beside the diagram
Audi used the 3.0 TFSI marketing name for supercharged EA837 and turbocharged EA839 V6 families. The shared sequence cannot select a plug, coil, injector, torque procedure, or access method. Record the engine code and VIN before removing an intake component or disconnecting a harness.
Read bank numbers as Audi defines them in engine-specific repair information. Vehicle left/right descriptions become confusing when an illustration is viewed from the front instead of from the driver's seat, so orient the diagram before labeling parts.
Which 3.0L TFSI V6 firing order applies?
Identify the EA837/EA839 engine code before using component-location instructions. This distinction matters because the engine can look nearly identical from above. Treat the camshaft or engine assembly as the authority when parts have been mixed. A firing order cast into an intake, copied from a generic decal, or remembered from another V8 is not enough to identify a modified engine.
The application table separates the order, cylinder banks, and ignition-system notes. Read all columns before routing. The first number in 1-4-3-6-2-5 is cylinder 1, but the physical No. 1 terminal can appear in different clock positions when a distributor has been installed on a different gear tooth.
Bank numbering and verification on the 3.0L TFSI V6
Cylinder number, coil connector, and firing-event position are different diagnostic references.
The supercharged EA837 and later turbocharged EA839 are not interchangeable service layouts even where their basic combustion sequence is shared.
Audi 3.0L TFSI V6 specifications can change by model year, engine, platform, wheel, and installed component. Confirm the VIN or engine identity, part numbers, fastener condition, and the current manufacturer instructions before service.
Procedures used with this specification
These steps are the same for every vehicle in this family, so they are documented once rather than repeated on each page. The values above remain specific to this Audi 3.0L TFSI V6.
Audi 3.0 TFSI Firing Order Diagram and Cylinder Numbering FAQs
What is the documented Audi EA839 3.0 TFSI firing order?+
Audi's technical-training table lists 1-4-3-6-2-5 for the covered DLZA 3.0L TFSI application.
Are EA837 and EA839 service layouts interchangeable?+
No. The supercharged EA837 and turbocharged EA839 are different engine families even when the firing sequence is shared.
Is firing order the same as cylinder numbering?+
No. Firing order is the sequence of power events; cylinder numbering locates the physical cylinders, and connector order identifies the harness.
Can a misfire code identify the bad coil by firing-order position?+
Use the cylinder number reported by the scan tool and the engine-specific location diagram. Do not count forward through the firing order to locate a coil.
Technical sources
TorqueSheet favors engine- and component-specific manufacturer instructions over unsourced universal values.
1Audi technical training — EA839 3.0L TFSI dataAudi-authored technical material identifying engine code DLZA and firing order 1-4-3-6-2-5 for the covered EA839 3.0L TFSI application.↗2Audi erWin repair informationAudi's official service-information source for engine-code-specific cylinder identification.↗