Bosch Ignition Coil for BMW & Mini 0221504800 — Direct-Fit OEM Replacement, 2006-2018 Models, 1-Pack

The Bosch 0221504800 OEM ignition coil is a direct-fit replacement designed to restore reliable spark delivery for select BMW and Mini vehicles from 2006–2018.

This ignition coil is an original-equipment quality part from Bosch engineered to match factory performance and fitment for a wide range of BMW 1, 2, 3, 4, 5, 6 and 7 Series models, M variants, X and Z platforms, and Mini Cooper models. If your engine is experiencing misfires, rough idle, or a check-engine light tied to ignition faults, this coil provides a like-for-like replacement to get your vehicle back to stable running without aftermarket guesswork.

How does this Bosch coil restore engine performance?

By supplying stable, high-voltage output to the spark plug, the coil helps ensure consistent combustion across operating conditions. That stability reduces misfires and erratic idling when the coil replaces a worn or failing unit.

• OE-equivalent voltage and impedance for correct spark timing and strength.
• Corrosion-resistant electrical connectors preserve conductivity over time.
• Precision-wound primary and secondary windings for consistent output.

Will it fit my BMW or Mini model?

This part is built to match factory form, fit and function for many Bosch-specified BMW and Mini applications between 2006 and 2018. Always verify compatibility with your VIN or OEM part cross-reference before purchase.

• Direct replacement for specified OE numbers including 12137550012 and related cross-references.
• Commonly used on 1, 2, 3, 4, 5, 6, 7 Series, M2/M3/M4, X1/X3/X5/X6, Z4, and Mini Cooper/Countryman/Paceman.
• One-piece coil assembly simplifies swap without modifying harnesses.

What makes Bosch coils durable for daily driving?

Bosch designs these coils with materials and manufacturing controls intended to withstand heat, vibration and electrical stress typical of modern engines. That durability helps maintain ignition consistency across thousands of miles.

• Robust insulation and thermal-resistant materials limit breakdown under high temperatures.
• Vibration-resistant construction helps preserve internal connections over time.
• Precision-molded housing resists moisture intrusion and environmental wear.

How easy is installation for a DIYer or mechanic?

Installation is straightforward when replacing the like-for-like OEM coil: disconnect battery power, remove the engine cover (if present), unplug the wiring, and unbolt the old coil. Tighten to factory torque and clear any fault codes after fitting.

• Plug-and-play electrical connector mirrors OE layout for seamless fit.
• No special tools typically required beyond basic hand tools and a torque wrench.
• Sold as a 1-pack for replacing one cylinder’s coil at a time.

Who this is for: Drivers and technicians who need an OEM-grade ignition coil replacement for select BMW and Mini vehicles that demand proper fitment and consistent spark delivery. Ideal for anyone addressing cylinder misfires, poor cold starts, or intermittent ignition faults and who prefers replacing a failed coil with a factory-equivalent Bosch component rather than an unspecified aftermarket unit.