ECCPP Ignition Coil Pack & Iridium Spark Plugs Kit for Mercedes‑Benz C250 SLK250 2012–2015 — Set of 4, OE‑Fit for 1.8L Engines

ECCPP UF658 & 93911 is a plug-and-play ignition coil pack and iridium spark plug kit engineered to restore reliable spark delivery and smooth running for compatible Mercedes‑Benz 1.8L engines.

This complete set combines ignition coils and iridium-tipped spark plugs designed to match OEM fit and function for specified Mercedes‑Benz C250 and SLK250 models (2012–2015). The kit replaces worn coils and plugs that commonly cause misfires, rough idling, reduced power and increased fuel use, and delivers components made with durable materials to maintain consistent ignition performance over extended service intervals. Confirm OE numbers or use a fitment checker to ensure compatibility before purchase.

How does this kit improve engine performance?

Replacing tired coils and worn spark plugs with components that meet original-equipment specifications restores the strength and timing of the ignition spark. That helps the engine run more smoothly, reduces misfires and can bring fuel consumption back toward factory levels.

• Steady spark output from iridium center electrodes for consistent combustion.
• Coils built with a silicon-steel core and heat‑resistant boot for reliable delivery.
• OE-matched fit reduces installation errors and electrical losses.

What parts are included and which vehicles fit?

The kit contains ignition coils and iridium spark plugs sized for specific Mercedes‑Benz 1.8L models. Verify your vehicle’s OE part numbers before ordering to ensure proper fitment and function.

• Included: ignition coil packs (UF658 / C931 / IC761 / A0001502580 replacement) and iridium spark plugs (93911 / LKR7AIX replacement).
• Compatibility note: Fits Mercedes‑Benz SLK250 and C250 1.8L model years 2012–2015; please confirm OE numbers.
• Installation: direct plug-and-play — no special tools or instructions required for experienced installers.

What are the key specifications and materials?

Components are manufactured to meet common automotive service specifications: 12V coil operation, blade terminals and bolt-on mounting for secure installation; iridium tip plugs for extended life and stable gaps.

• Ignition coil specs: 12V, 3 terminals, blade terminal type, bolt-on mount.
• Spark plug specs: iridium center electrode, 0.032 in gap, 5/8 in hex, 12 mm thread diameter.
• Durability features: heat-resistant rubber boot, varnished coil winding, and iridium electrode rated for long service life.

How do I install and maintain the coil and plug kit?

Installation is straightforward for anyone familiar with basic engine maintenance: remove old coils and plugs, check and set plug gaps if required, then fit the new parts in the reverse order. Routine visual inspection and following manufacturer service intervals will help maximize component life.

• Perform a visual check of connectors and boot seals before installation.
• Hand-tighten plugs and then torque to the vehicle manufacturer’s specification; avoid over-tightening.
• Inspect coils and boots periodically for cracks or corrosion and replace as needed.

Who this is for: This ECCPP kit is aimed at owners and mechanics of Mercedes‑Benz C250 and SLK250 1.8L vehicles from 2012–2015 who need a reliable, cost-effective replacement for worn ignition coils and spark plugs. It suits DIY enthusiasts wanting OEM-style fitment, independent repair shops seeking dependable aftermarket components, and fleet operators who prioritize straightforward installation and long service intervals. Always verify fitment against your vehicle’s OE part numbers before purchase.