Ignition Coil and Iridium Spark Plugs for Mercedes Benz E-Class (2017-2019) 2.0L

$202.95

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Direct-Fit Ignition Coil and Iridium Spark Plug Tune-Up Kit for 2017-2019 Mercedes Benz E-Class

What it Does: Restores factory ignition energy and precise combustion timing by replacing degraded coil-on-plug boots and worn spark plug electrodes across all four cylinders.

The Stock E-Class Ignition Breakdown

The turbocharged direct-injected M274 engine operates under elevated cylinder pressures and thermal loads. Over time, OEM ignition coils suffer from dielectric breakdown in the epoxy resin and micro-cracking along the lower silicone boot. This insulation breakdown permits secondary voltage leakages to the cylinder head, resulting in misfire codes (P0300-P0304), rough idle oscillations, and power loss under boost. Simultaneously, factory spark plug gaps widen from standard electrical erosion, increasing the resistance threshold required to jump the gap and overloading the primary coil windings.

The Engineering Solution

This complete ignition kit matches factory dwell profiles and secondary energy outputs. The coil assemblies are engineered with high-conductivity oxygen-free copper internal windings and reinforced PBT thermoplastic housings to withstand extended thermal cycling up to 140°C without breakdown. Paired with fine-wire iridium-tipped center electrodes and platinum-grounded spark plugs, the kit reduces the required firing voltage, prevents spark blowout under direct-injection boost pressures, and ensures complete flame-front propagation.

Technical Specifications

Fitment	2017-2019 Mercedes Benz E-Class (E300) 2.0L
Engine / Chassis	M274 DE20 AL / W213
Stock Output	241 hp / 273 lb-ft (Approx)
Part Number	UF734, UF820, A2749060700, A2749061400, 2749060700, 2749061400, 28400714

Compatibility

2017 Mercedes-Benz E300 2.0L L4 Turbo (W213)
2018 Mercedes-Benz E300 2.0L L4 Turbo (W213)
2019 Mercedes-Benz E300 2.0L L4 Turbo (W213)
2017-2019 Mercedes-Benz E300 4Matic 2.0L L4 Turbo (W213)

The Mercedes-Benz Precision Standard

Engineered to meet stringent European OBD-II parameters, these direct-replacement ignition components preserve smooth operation without triggering check engine lights or intermittent fault codes in your Bosch ECU.

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