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Ignition for BMW 3 Series E46 (1999-2005)

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Your BMW's ignition system is critical for smooth engine operation. This category contains parts used in the BMW ignition system, including spark plugs, ignition coils, spark plug wires and boots, ignition rotors and caps, distributors and distributor caps. On most 1991 and later model BMWs, your car has what's known as a coil-on-plug system, where each cylinder has its own ignition coil that sits directly atop the spark plug (so you won't have spark plug wires on those BMWs.) A fresh set of spark plugs is an essential part of any BMW engine tune up.

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Mishimoto Ignition Coil, 4-Pack - BMW N20, N52, N54, N55, S54, S55 ...

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T#:51075078

Part#: MMIG-BMW-0204

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$ 123.99 USD

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The Mishimoto BMW Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

Wire Type Spark Plug Gapper .040 to .080

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T#:641655

Part#: LIS67900

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$ 4.99 USD

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Always check gap on your new spark plugs

Hitachi Ignition Coil - BMW M54 S54 N62 N73

For vehicles with production date up to 06/2009

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T#:48815451

Part#: 12131712219

Ships in 6 Business Days

$ 57.99 USD

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Get your spark back with new ignition coils.

Hitachi Ignition Coil With Spark Plug Connector - BMW N54 N55 N62 N63...

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T#:48850063

Part#: 12138657273

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$ 53.99 USD

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Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code, but not always a check engine light. A misfire code may be related to an ignition coil, but could be from other things as well. ometimes, a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

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Genuine BMW Locking Mechanism - 12131437986

For vehicles with production date from 09/2002

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T#:38216

Part#: 12131437986

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$ 10.99 USD

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$ 10.99 USD

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Genuine BMW Locking Mechanism
This item fits the following BMW Chassis:
E60 M5,E63 M6,E46 M3,E70 X5M,E71 X6M,E82 1M Coupe,E85 Z4M,E53 48IS,E39,E46,E53 X5 X5,E63,E65,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

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Genuine BMW Wiring Harness

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For vehicles with production date up to 09/2002

T#:39600

Part#: 12511440006

Ships in 1 day

3% off MSRP $ 308.99

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

$ 300.99 USD

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3% off MSRP

$ 308.99

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

$ 300.99 USD

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Genuine BMW Wiring Harness, Engine Ignition Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52,M54

Genuine BMW Ignition Coil

For vehicles with production date up to 09/2002

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T#:12446

Part#: 12131703228

Ships in 1 day

2% off MSRP $ 108.99

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

$ 106.99 USD

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2% off MSRP

$ 108.99

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

$ 106.99 USD

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Bosch BMW IGNITION COIL

We also stock this part as BMW part #12131748018

Fits BMW Engines including:
M52,M54,M62,M73,M73N

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Genuine BMW Engine wiring harness - E46 325xi 325i 325Ci

For vehicles with production date from 09/2002 up 06/2003

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T#:39813

Part#: 12517518044

Ships in 8 Business Days

3% off MSRP $ 308.99

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

$ 300.99 USD

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3% off MSRP

$ 308.99

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

$ 300.99 USD

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Genuine BMW Wiring Harness, Engine Ignition Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54

M50/M52/M54 Beru Racing Spark Plug

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T#:338884

Part#: FGR-6DDU

Back Ordered

Sale - Save 17% $ 23.99

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

Starting at $ 20.00 USD

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Sale - Save 17%

$ 23.99

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

Starting at $ 20.00 USD

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RACING SPARK PLUG FOR M50/M52/M54 ENGINES
These spark plugs are recommended by BMW Motorsport for use in their DTC racing engines. We find a slight horsepower increase and greatly increased durability over the OEM road car spark plugs in competition use. We attribute the improvements to the fact that these spark plugs are designed for the high temperatures and cylinder pressures encountered in a racing engine. These spark plugs are a direct replacement and come pre-gapped just like the factory road car plugs.
Please note: these plugs are not for the S54 engine in the E46 M3, MZ3, or Z4 M

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Starter Motor

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T#:55030826

Part#: 12412354693

Ships on Oct 23, 2026

$ 129.99 USD

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Spark Plug Boot - Priced Each

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T#:5958750

Part#: 12139067831

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$ 15.99 USD

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$ 15.99 USD

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MEYLE-ORIGINAL: True to OE spark plug boot Should be replaced each time you replace the spark plugs Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 12139067831

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BMW - Start/Ignition/Glow plug relay

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T#:40342871

Part#: 12135A06753

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$ 58.99 USD

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This BMW/MINI ignition coil is designed with enhanced core windings to boost spark energy and promote a quicker, more efficient combustion. The result is improved low-end torque and increased horsepower at higher RPMs. While the exact gains depend on your engine’s condition, noticeable performance improvements and better fuel efficiency can be expected.

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Spark Plug Boot - Priced Each

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T#:596875

Part#: 12131730412

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$ 15.99 USD

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Sometimes a bad coil may just be a broken or damaged connector boot. This is especially true on cars with a leaking valve cover gasket where the oil has contamintated the rubber boot and the electrical parts inside. This boot can be replaced on its own without having to buy a whole new coil. This part is also useful if you purchased a coil that did not come with a new boot.

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Ignition Coil - Priced Each

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T#:4154570

Part#: 12138616153

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$ 36.99 USD

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$ 36.99 USD

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Maintain the factory-level precision and power output of your BMW or MINI with this replacement ignition coil from Meyle.

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