Ignition Coil and Iridium Spark Plugs for Mercedes Benz GLA-Class (2015-2020) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2015-2020 Mercedes Benz GLA-Class

Direct-Replacement Ignition Service Kit: Restores precise primary-to-secondary ignition saturation, eliminates high-boost misfires, and stabilizes combustion on the M270 2.0L Turbo engine.

The Stock GLA-Class Ignition Degradation & Thermal Fatigue

The compact transverse engine bay of the X156 platform exposes factory coil-on-plug modules to continuous thermal cycling and severe under-hood heat soak. Over time, original epoxy potting degrades, leading to internal dielectric breakdown, micro-arcing, and secondary voltage leakage under load. Combined with eroded factory electrodes, this causes erratic spark timing, rough idle, reduced fuel economy, and intermittent cylinder misfire fault codes (P0300-P0304).

The Engineering Solution

This comprehensive tune-up kit features heavy-duty coil packs manufactured with high-conductivity internal copper windings for rapid magnetic charging and high-energy discharge. The reinforced, temperature-resistant thermoplastic bodies prevent high-voltage flashover. Paired with ultra-fine-wire iridium spark plugs, this kit provides a concentrated spark kernel, lower ignition voltage demand, and sustained anti-fouling protection across all driving conditions.

Technical Specifications

Compatibility

• 2015-2020 Mercedes-Benz GLA250 Base (2.0L L4 Gas Turbo)
• 2015-2020 Mercedes-Benz GLA250 4Matic (2.0L L4 Gas Turbo)

The Mercedes Benz Precision Standard

Engineered to communicate seamlessly with factory Bosch powertrain control modules, ensuring exact dwell time calibration, zero check engine lights (CEL), and complete readiness monitor compliance without ECU reprogramming.