Ignition Service for BMW 3 Series E30 (1984-1991)

Clear BMW chassis

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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Bav Auto High-Performance Ignition Coil - M42 M50 M60 S50

T#:579674

Part#: 5003

In Stock

Sale - Save 15% $ 33.99

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

$ 28.89 USD

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Qty

Sale - Save 15%

$ 33.99

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

$ 28.89 USD

Add to Wish List

A simple yet effective upgrade, these Bav Auto High-Performance Ignition Coils feature modified core windings that offer increased firepower and promote a faster, more efficient burn. The result is greater low-end torque and increased horsepower in the mid to top-end. When used in a properly functioning engine, a noticeable difference can be felt. In addition to better torque and horsepower, fuel economy is also improved! These coils come with new spark plug boots. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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OEM Bosch Spark Plugs -- E30 E28 E24 E23

T#:348802

Part#: 12121279599

In Stock

$ 13.02

This product was last offered at the strikethrough price on
05-14-2026

$ 9.03 USD

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$ 9.03 USD

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Bosch WR9LS spark plug for M20 and M30 engines. Listed as BMW part #'s 12121279599 and 12121469531. Over time spark plugs become contaminated, worn, and "fouled out". This can cause a weak or missing spark leading to issues with fuel efficiency, misfires, check engine codes, and poor idle or even direct damage to your catalytic converter. This OEM spark plug made by Bosch will restore OE spark plug operation and function, returning lost power and fuel efficiency.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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OEM Ignition Service Kit - 325e/es 325i/is M20

T#:556733

Part#: E30M20KT

Ships on Oct 1, 2026

Sale - Save 11% $ 389.99

This product was last offered at the strikethrough price on
08-10-2026

$ 346.29 USD

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Qty

Sale - Save 11%

$ 389.99

This product was last offered at the strikethrough price on
08-10-2026

$ 346.29 USD

Add to Wish List

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

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