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Description

BMW M42B18 M44B18 M42 M44 COP-Coil Adapters

With these M42 and M44 COP coil adapters you convert the ignition of a BMW M42 or M44 four-cylinder to individual coils per spark plug (coil on plug). The original spark plug leads of these engines are expensive, hard to find and prone to faults. The adapter plate makes it possible to use the COP coils of the BMW M52, type BREMI 1748017.

This makes these M42 and M44 COP coil adapters a practical upgrade for E30, E36 and E36 Compact drivers with an M42B18 or M44B18, especially if the car is used for drift, rally or track days.

Key benefits of these M42 and M44 COP coil adapters

• Goodbye to the old spark plug leads: no more expensive, hard-to-get leads
• Suitable for M52 COP coils, BREMI 1748017
• Aluminium, 6 mm thick
• CNC-cut for an accurate fit
• Mounting holes already in place
• For the M42B18 and M44B18 in the E30, E36 and E36 Compact

Suitable for

BMW 3 Series with M42 or M44 engine

• BMW 3 Series E30 with M42B18
• BMW 3 Series E36 with M42B18 or M44B18
• BMW 3 Series E36 Compact with M42B18 or M44B18

Technical specifications

• Item number: 0112
• Application: adapter plate for coil-on-plug ignition
• Engines: BMW M42, M44 (M42B18, M44B18)
• Suitable coils: BMW M52 COP coils, BREMI 1748017 (not stated as included)
• Material: aluminium
• Thickness: 6 mm
• Production: CNC-cut
• Weight: 0.42 kg

What is the difference from the original ignition? On the M42 and M44, spark plug leads run to each cylinder. With coil on plug, every spark plug has its own coil, without long leads in between. BMW itself used that system on its six-cylinders, such as the M52.

Installation and delivery

The adapter plate goes on the engine, at the position of the spark plugs. You then fix the M52 coils (BREMI 1748017) on it, one per cylinder. The mounting holes are already in the plate. On the last coil you have to leave out one fixing point, because there is too little space there. This has no effect on how the coil works.

For the electrical connection of the coils you need a suitable wiring loom or connectors. Have this done by someone who knows car electrics, and check after the conversion that the firing order is correct. The coils themselves are not stated as part of the delivery.

Combine the conversion with new spark plugs and you start with a clean slate. You will find more parts for your engine in our engine parts category.

No more hassle with old spark plug leads: one coil per cylinder, on a plate of 6 mm aluminium.

Why choose M42 and M44 COP coil adapters?

On an M42 or M44, the original spark plug leads are a known weak point. They are expensive, increasingly hard to get and can cause faults. With M42 and M44 COP coil adapters you switch to the coils of the M52, which are easier to find. According to the manufacturer, the adapter has been tested in motorsport, including drift and rally.

Frequently asked questions

Which coils fit these M42 and M44 COP coil adapters?

The COP coils of the BMW M52, type BREMI 1748017.

Are the coils included?

No, the coils are not stated as part of the delivery of the M42 and M44 COP coil adapters.

Why can the last coil not be fixed with all holes?

There is too little space at the last position, so one mounting hole is left out. The coil works normally.

What material is the adapter made of?

The M42 and M44 COP coil adapters are made of 6 mm thick aluminium, CNC-cut.

Do COP coil adapters also work on an M50 or M52?

No, this plate is made for the four-cylinder M42 and M44.

Which cars does it fit?

The BMW E30, E36 and E36 Compact with an M42B18 or M44B18 engine.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.