Ignition Coil and Iridium Spark Plugs for Mercedes-Benz Metris (2016-2019) 2.0L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2016-2019 Mercedes-Benz Metris

What it Does: The ignition coil and iridium spark plug kit restores primary and secondary ignition efficiency on the 2016-2019 Metris to eliminate misfires, stabilize rough idle, and maintain factory combustion performance under boost.

The Stock Mercedes-Benz Metris Thermal Degradation Failure

In the turbocharged M274 direct-injected powertrain, high underhood operating temperatures and constant thermal cycling severely compromise factory ignition components over time. The stock epoxy insulation within the pencil coil packs micro-fractures, allowing high-voltage secondary leakage and dielectric breakdown. Simultaneously, factory spark plug electrodes suffer erosion from continuous high-load boost, widening the spark gap and placing excessive electrical demand on the ignition coils. This cascading degradation causes intermittent under-load misfires (DTC P0300–P0304), sluggish throttle pickup, and reduced fuel efficiency.

The Engineering Solution

This comprehensive ignition service kit replaces tired hardware with high-dielectric epoxy-potted ignition coils and fine-wire iridium spark plugs designed to match or exceed OE specifications. The replacement coils feature reinforced copper primary and secondary windings encased in heat-resistant thermoplastic housings that prevent voltage tracking and arcing. Paired with laser-welded iridium-tipped plugs, the assembly lowers the required ignition breakdown voltage, delivers a more consistent flame kernel under high cylinder pressures, and directly interchanges with OEM part numbers 2749060700 and 2749061400 without requiring harness modifications.

Technical Specifications

Compatibility

• 2016-2019 Mercedes-Benz Metris Base Mini Cargo Van 2.0L L4 Turbo
• 2016-2019 Mercedes-Benz Metris Base Mini Passenger Van 2.0L L4 Turbo

Frequently Asked Questions

Does this fit the W447 Metris?
Yes, this is a direct fit for the 2016-2019 Mercedes-Benz Metris equipped with the M274 2.0L turbocharged engine.

Do the spark plugs require manual gapping before installation?
No, these iridium plugs are pre-gapped to factory specifications; altering the gap manually can damage the delicate iridium electrode.

The Mercedes-Benz Precision Standard

European direct-injection engines mandate tight ignition tolerances to prevent unburnt hydrocarbons from fouling catalytic converters. This complete ignition refresh kit guarantees exact resistance values, OE-spec dwell characteristics, and reliable no-CEL operation.