Ignition Service for BMW E60 M5 S85 5.0L

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It's important to keep your ignition system operating properly to avoid further complications in the future. Here at Turner Motorsport, we offer full ignition service kits if you'e going to overhaul your entire ignition system, and individual components if you've narrowed down your problem already.

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Ignition Service Kit - E60 M5, E63/E64 M6 S85 5.0L
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Packaged by Turner - Corporate Logo
T#:39261787
Part#: 056059LA02KT3
In Stock
Sale - Save 19% $ 587.99

This product was last offered at the strikethrough price on
05-03-2026

$ 475.43 USD
Free Shipping on orders $49 and up
Sale - Save 19%
$ 587.99

This product was last offered at the strikethrough price on
05-03-2026

$ 475.43 USD
Free Shipping on orders $49 and up

Perfect for DIY enthusiasts, this all-in-one kit has everything you need to refresh your ignition system! With just one click, you'll get high-quality, matching replacement parts, making it simpler than ever to service and restore your ignition system.

If you're noticing misfires, poor fuel economy, reduced engine performance, or ignition-related diagnostic trouble codes (DTCs), a failing ignition coil is likely the cause. Late-model BMWs, such as the E60 M5, E63 M6, and E64 M6, use a coil-on-plug ignition system, where each cylinder has its own coil and spark plug for efficient ignition. When a coil fails, the affected cylinder won't receive a spark and will misfire. Even if the misfire doesn’t trigger a DTC, you’ll still feel the difference in engine performance—rough idling, hesitation during acceleration, or a strong fuel smell. To avoid these issues, we recommend replacing your ignition coils every 40,000-60,000 miles.

The S85's MSS65 DME uses a unique ignition system known as Ionic Current Control. BMW engineers developed this system to more accurately detect pre-ignition and misfires in the high-revving, ten-cylinder S85. Instead of relying on conventional knock sensors, the system uses each spark plug as a current probe, applying a low voltage to the electrode immediately after the power stroke and sending the resulting current to the Ionic Current Control Unit (ISS) for evaluation. This allows for precise monitoring of combustion events. To support this, the S85’s ignition coils are specially designed with a modified “pencil” shape and lack the typical Zener diode in the secondary winding, allowing for accurate current measurements without triggering fault codes in the engine control unit (DME). Bavarian Autosport ignition coils are manufactured to the exact specifications of the OE Ionic Current Control-compatible ignition coils, and will not trigger ignition-related fault codes in the DME.

Bavarian Autosport ignition coils are engineered for reliability, delivering a consistent, long-lasting spark. These high-quality OE replacement coils are specifically designed for your S85-powered E60 M5, E63 M6, or E64 M6. Constructed with durable, heat-resistant plastic and featuring premium rubber spark plug boots, each boot is pre-lubricated with dielectric grease to ensure smooth installation and prevent corrosion.

Features & Benefits:

Bavarian Autosport Ignition Coils - Set of Ten Durable, temperature-resistant plastic construction is designed to withstand extreme heat and harsh conditions, ensuring long-lasting performance. High-quality rubber spark plug boots are pre-lubricated with dielectric grease to prevent moisture intrusion and potential corrosion. Built to meet or exceed OE manufacturing standards, guaranteeing a perfect fit, reliable performance, and seamless installation. NGK 4471 LKR8AP Spark Plugs - Set of Ten Multi-ground electrodes improve ignition capability and are less sensitive to increased voltage use with gap growth. Corrugated ribs prevent flashover. Copper core aids in heat removal. Pre-gapped to 0.035" (0.9mm) OEM-specified spark plug for all S85 applications.

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Genuine BMW Spark Plug - E9x M3, E60 M5, E63 M6
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Genuine BMW - Corporate Logo
T#:13062
Part#: 12120032273
In Stock
27% off MSRP $ 36.21

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 26.50 USD
Free Shipping on orders $49 and up
27% off MSRP
$ 36.21

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 26.50 USD
Free Shipping on orders $49 and up
Poor idle, low fuel efficiency, and engine misfire codes are all symptoms of worn spark plugs. Replace yours with quality aftermarket parts to get your engine running as well as possible.
Spark Plug Socket 16MM 12 Point Swivel
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CTA Tools - Corporate Logo
T#:640924
Part#: CTA4329
In Stock
$ 24.28 USD
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Swivel Spark Plug Socket 16MM

Spark Plug Socket 16mm Double Hex Flex
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CTA Tools - Corporate Logo
T#:640937
Part#: CTA7656
In Stock
$ 35.72 USD
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Use for cars requiring 16mm plug socket

Genuine BMW Spark Plug Pipe - 11127835170 - E60 M5,E63 M6,E90,E92,E93...
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Genuine BMW - Corporate Logo
T#:31622
Part#: 11127835170
In Stock
1% off MSRP $ 32.26

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 31.79 USD
Free Shipping on orders $49 and up
1% off MSRP
$ 32.26

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 31.79 USD
Free Shipping on orders $49 and up


Genuine BMW Spark Plug Pipe
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63,E90,E92,E93

Fits BMW Engines including:
S65,S85

Bosch Spark Plug - FGR7DQP - Various BMW Models
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:340316
Part#: FGR7DQP
In Stock
Starting at $ 26.95 USD
Free Shipping on orders $49 and up
Starting at $ 26.95 USD
Free Shipping on orders $49 and up
Standard replacement Bosch spark plug for many BMW's. Also a "High Power" Bosch spark plug for various BMW Models -- Interchangeable with BMW part # 12120141871.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1992-1995 E34 BMW 530i 540i
1997-2003 E39 BMW 525i 528i 530i 540i
2004-2005 E60 BMW 525i 530i 545i
2004+ E63 BMW 645ci
1988-1994 E32 BMW 740i 740il
1988-1994 E32 BMW 740i 740il 750il
2002-2008 E65 BMW 745i 745li 760i 760li
1990-1999 E31 BMW 840i 840ci 850i 850ci
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i X5 4.4i X5 4.6is
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i
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14mm 12-Point Socket, 3/8" Drive
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Baum Tools - Corporate Logo
T#:2854671
Part#: B121220
Ships in 6 Business Days
$ 48.48 USD
Free Shipping on orders $49 and up
OEM NGK Spark Plug - LKR8AP - E9x M3, E60 M5, E63 M6
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We Price Match - Give Us A Call or Chat!
NGK - Corporate Logo
T#:20553
Part#: LKR8AP
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
BMW recommends a spark plug change interval of 37,000 miles for the S65 and S85 engines. Replace the spark plugs on your E9X M3 and E60 M5 and E63 M6 with these OEM NGK spark plugs that are a direct replacement for the factory part # 12120032273.
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Combination Feeler Gauge/Spark Plug Gapping Tool
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Gear Wrench - Corporate Logo
T#:587003
Part#: KDT164
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
Gauge and accurately alter the gap of your spark plugs.

Schwaben 14mm 12-Point Socket, 3/8" Drive
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Schwaben - Corporate Logo
T#:369968
Part#: SP-05-12P
In Stock
Sale - Save 25% $ 17.99

This product was last offered at the strikethrough price on
05-02-2026

$ 13.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 17.99

This product was last offered at the strikethrough price on
05-02-2026

$ 13.49 USD
Free Shipping on orders $49 and up
14mm deep socket, perfect for long stud fasteners and recessed locations.