Ignition Coil and Iridium Spark Plugs for BMW 4 Series (2014-2016) 3.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2014-2016 BMW 4 Series

What it Does: Replaces degraded factory ignition components to eliminate cylinder misfires, stabilize idle oscillation, and restore peak combustion efficiency under boost.

The Stock N55 Ignition Breakdown

Under sustained turbocharger boost and intense engine bay thermal cycling, factory N55 ignition coils suffer from dielectric breakdown and internal winding resistance drift. This degradation leads to weak secondary voltage discharge, spark blowout under heavy load, rough cold starts, and DME misfire codes.

The Engineering Solution

This direct-replacement kit features coil-on-plug assemblies engineered with high-conductivity copper primary and secondary windings encased in heat-resistant epoxy housings. Coupled with fine-wire iridium spark plugs, this setup reduces required ignition voltage, prevents current leakage through reinforced silicone boots, and delivers a stable flame kernel for complete fuel atomization under high cylinder pressures.

Technical Specifications

Compatibility

• 2014-2016 BMW 435i Coupe (F32) 3.0L L6 Turbo
• 2014-2016 BMW 435i Convertible (F33) 3.0L L6 Turbo
• 2015-2016 BMW 435i Gran Coupe (F36) 3.0L L6 Turbo
• 2014-2016 BMW 435i xDrive Coupe (F32) 3.0L L6 Turbo
• 2014-2016 BMW 435i xDrive Convertible (F33) 3.0L L6 Turbo
• 2015-2016 BMW 435i xDrive Gran Coupe (F36) 3.0L L6 Turbo

The BMW Precision Standard

Engineered to exact OEM electrical tolerances, these components deliver flawless DME communication, prevent stored shadow codes, and ensure reliable performance without triggering check-engine lights.