Bosch 0986221138 Ignition Coil

Bosch Ignition Coil for Audi and Bentley

Bosch ignition coil 0986221138 is an OE-quality replacement built to deliver the correct ignition voltage and a consistent spark. It supports smoother engine operation, improved fuel efficiency, and lower exhaust emissions in direct-fit applications such as Audi A8 Quattro, RS7, S6, S7, and S8, plus Bentley Continental models.

Key Features

• Voltage rating: 14V for stable ignition performance
• Compact coil design for modern engine bays
• SAE terminal type for OE-style electrical connection
• Supports long-duration spark output for reliable combustion
• Brand line: Bosch Ignition Coil (New) for replacement service on select Audi and Bentley vehicles
• Cross-reference: This part cross-references 079905110N and 079905110P for the same application.

Detailed Description

Bosch part number 0986221138 is an ignition coil replacement for select 2013-2018 Audi A8 Quattro, RS7, S6, S7, and S8 applications, along with 2013-2017 Bentley Continental models. It is engineered as a compact coil with a 14V specification and SAE terminals, helping restore proper ignition voltage and spark delivery when the original coil is worn or failing. For drivers searching for an ignition coil for Audi A8 Quattro 2013-2018 or a Bosch ignition coil for Bentley Continental 2013-2017, this part matches the listed OE-style applications.

Common Problems It Can Help Address

• Engine misfire under load or at idle
• Hard starting or extended crank time
• Rough running and uneven acceleration
• Reduced fuel economy from weak spark output
• Increased exhaust emissions caused by incomplete combustion

Installation Notes and Tips

Verify the part number and vehicle application before installation. This ignition coil is listed for one-per-cylinder service on the specified Audi and Bentley engines, so confirm the exact engine configuration and model year notes before ordering. Inspect spark plugs, coil boots, and connector terminals during replacement to help prevent repeat ignition faults. For best results, clear diagnostic trouble codes after installation and confirm proper engine operation.

Quality Assurance

Bosch is known for OE-level ignition components, and this coil is specified to deliver the correct ignition voltage and consistent spark performance for the listed applications. Part number 0986221138 is built for direct replacement service in the confirmed fitments shown above.