P0306 on Volkswagen
Cylinder 6 Misfire Detected
P0306 on Volkswagen vehicles indicates cylinder 6 misfire detected. Au7o has documented this code across 3 Volkswagen models — most commonly on Golf, Jetta, Taos. This code means the engine computer detected a misfire on cylinder 6 — that cylinder isn't burning its fuel-air mixture properly. The computer senses misfires by watching for tiny variations in crankshaft speed each time a cylinder should fire, and when cylinder 6 repeatedly fails to contribute, this code sets. You may feel a shake or stumble, especially at idle or under load, along with reduced power and possibly a flashing check-engine light, which signals a misfire severe enough to damage the catalytic converter. A misfire comes down to a problem with spark, fuel, or compression in that cylinder. Typical repair costs on Volkswagen range from $60 to $1,200, depending on the specific model and root cause.
Common Causes of P0306
- •Worn or fouled spark plug on cylinder 6
- •Failed ignition coil for cylinder 6
- •Clogged, leaking, or failed fuel injector
- •Vacuum or intake air leak affecting that cylinder
- •Low compression (worn rings, burnt valve, head gasket)
- •Damaged plug wire or coil connector
- •Carbon buildup or worn valvetrain components
P0306 on Volkswagen by Model
Volkswagen Golf(1 issue)
- VR6 coil pack casing cracking causing misfires (worse in wet weather)1992-1998
The single coil pack used on the MK3 VR6 develops cracks in its plastic/epoxy casing. High voltage then arcs to ground through the cracks instead of firing the plugs, producing misfires. The problem is classically weather-dependent: it is much worse in damp, foggy or rainy conditions when moisture bridges the cracks and provides an easier path for the spark to jump. Enthusiast references note the coil-pack cracking problem started with the MKIII VR6s. It is a top cause of intermittent running complaints on these cars.
Volkswagen Jetta(1 issue)
- Ignition Coil Pack Failure Causing Misfires (2.0 ABA and VR6)1993-1999
The single ignition coil/coil pack on the 8-valve 2.0L ABA and the coil on the 2.8L VR6 is a well-known failure point. The plastic coil housing cracks and degrades under underhood heat and vibration, allowing spark to jump to ground or another plug wire, causing misfires on one or more cylinders. It is one of the most frequently reported driveability faults on MK3 Jettas and is documented generically by RepairPal for the Jetta ignition system. Aftermarket coils are notoriously unreliable on these cars; owners consistently report the misfire only clears with a genuine OEM VW coil. Left uncorrected, sustained misfire can overheat and destroy the catalytic converter.
Volkswagen Taos(1 issue)
- EA211 1.5T Engine Ticking and Fuel Injector Noise2022-2025
The EA211 EVO 1.5T engine in the Taos produces a noticeable ticking/tapping noise that concerns many owners. While some of the noise is normal direct-injection fuel injector operation, excessive ticking can indicate a high-pressure fuel pump issue or hydraulic lifter wear. VW states that direct-injection engines are inherently noisier, but some units produce excessive noise beyond the norm. TSB 20-22-01 addresses abnormal engine noise diagnosis.
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View P0306 across all makes →Frequently Asked Questions
What does P0306 mean on Volkswagen?▼
P0306 stands for "Cylinder 6 Misfire Detected." This code means the engine computer detected a misfire on cylinder 6 — that cylinder isn't burning its fuel-air mixture properly. The computer senses misfires by watching for tiny variations in crankshaft speed each time a cylinder should fire, and when cylinder 6 repeatedly fails to contribute, this code sets. You may feel a shake or stumble, especially at idle or under load, along with reduced power and possibly a flashing check-engine light, which signals a misfire severe enough to damage the catalytic converter. A misfire comes down to a problem with spark, fuel, or compression in that cylinder. On Volkswagen specifically, this code is documented across 3 models.
What causes P0306 on Volkswagen vehicles?▼
Common causes on Volkswagen: Worn or fouled spark plug on cylinder 6, Failed ignition coil for cylinder 6, Clogged, leaking, or failed fuel injector, Vacuum or intake air leak affecting that cylinder, Low compression (worn rings, burnt valve, head gasket). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0306 on a Volkswagen?▼
Repair costs on Volkswagen range from $60 to $1,200, depending on the specific model and root cause.
Which Volkswagen models have P0306 documented?▼
Au7o has documented P0306 on 3 Volkswagen models: Golf, Jetta, Taos.