Ignition Coil & Spark Plugs for BMW 550i 550i xDrive (2011-2013) 4.4L V8

Direct-Replacement Ignition Coil & Spark Plugs for 2011-2013 BMW 5 Series

Restoring optimal combustion and eliminating misfires: This comprehensive ignition service kit replaces degraded factory coils and fouled plugs to restore factory power delivery and smooth idling.

The Stock F10 Ignition Shortcomings

The N63 4.4L twin-turbo V8 engine is notoriously harsh on its ignition components due to extreme thermal loads generated by the 'hot-V' turbocharger layout. Intense under-hood heat bakes the factory ignition coil housings, causing micro-cracks in the epoxy potting. This degradation allows high voltage to arc directly to the cylinder head rather than bridging the spark plug gap, resulting in heavy-load hesitation, rough idling, and misfire codes. Additionally, standard spark plugs suffer electrode erosion under these high cylinder pressures, widening the gap and heavily straining the aging factory coils.

The Engineering Solution

This kit revitalizes the N63 ignition sequence, combining eight high-output coils with matched platinum spark plugs. The upgraded coils feature thermal-resistant silicone boots and high-dielectric epoxy resin to combat severe heat soak. Inside, tightly wound copper windings maximize voltage transfer to prevent spark blowout under high boost. The included platinum spark plugs utilize a durable fine-wire center electrode that resists high-temperature erosion. This promotes a highly concentrated spark kernel for efficient fuel combustion, restoring crisp throttle response, ensuring a perfectly stable idle, and delivering consistent ignition performance.

Technical Specifications

Compatibility

• 2011 BMW 550i 4.4L V8
• 2012 BMW 550i 4.4L V8
• 2013 BMW 550i 4.4L V8
• 2011 BMW 550i xDrive 4.4L V8
• 2012 BMW 550i xDrive 4.4L V8
• 2013 BMW 550i xDrive 4.4L V8

The BMW Precision Standard

Engineered for precise module communication, these components ensure a perfect interface with the DME, delivering a stable spark profile and keeping your instrument cluster entirely free of Check Engine Lights.

Common Questions

Will this ignition kit fit my 2011-2013 BMW 550i or 550i xDrive?
Yes. This kit is a direct replacement for all 2011, 2012, and 2013 BMW 550i and 550i xDrive sedans equipped with the F10-chassis N63 4.4L twin-turbo V8 engine.

What is included in the box?
The kit includes a complete V8 service set of eight high-output ignition coils and eight matched fine-wire platinum spark plugs.

Which BMW 5 Series models and engines is this kit built for?
This kit is engineered specifically for the 2011-2013 BMW 550i and 550i xDrive with the 400 hp N63 4.4L V8.

Which factory part numbers does this kit replace?
The ignition coils replace OEM and aftermarket numbers 12137523345, UF667, 2IGC0102, 921-2111, and C1638VC, paired with matched N63 platinum spark plugs.

Do these coils and plugs require any coding or tuning after installation?
The coils and platinum spark plugs are direct-fit replacements designed to interface directly with the factory BMW DME without modifications.