BMW 1M Engine

BMW 1M Engine – Full Information

BMW is one of the top players in the automobile industry. The Germany-based company is popular for luxury, highest standards, comfort, and powerful cars. It is capturing the automobile market with its car engines that produce maximum power. The BMW 1M Engine is one such powerful engine from the automobile industry giant. This engine is a tuned version of the N54 twin-turbocharged 3.0 liters straight-six engine producing 335 hp. Also, it has a 6-speed manual gearbox and electronic limited-slip differential. With its front/rear-drive layout, traditional sports car handling, the BMW 1M became popular instantly after its release. 

As BMW uses advanced technology, BMW Accessories are popular too. But most importantly, the 1M Engine from BMW has helped it to achieve new heights. Let’s know about the 1M Engine in detail along with its specifications, common issues, and maintenance. By knowing all about it you will be able to make informed decisions related to this marvelous engine from BMW.

Table of Contents:

  • BMW 1M Engine – Full Specifications
  • Common 1M Engine Issues
  • BMW 1M Engine Maintenance
  • Conclusion

BMW 1M Engine – Full Specifications 

Powering the BMW 1M is an N4 twin-turbocharged 3.0 Liter and intercooled DOHC 24-valve inline-6 engine. For the 1M, the turbocharger, exhaust system, as well as ECU is revised to produce 335 hp and 332 pound-feet of total torque, although 369 pound-feet is available in overboost mode. Following specifications make sure that great power is achieved without any big hassles:

  • Engine Type – 1M is twin-turbocharged along with an intercooled DOHC 24-valve inline-6. It has an aluminum block and head with direct fuel injection technology
  • Cylinder – Inline 6
  • Displacement – 2979cc 
  • Power – 335 hp @ 5800 rpm 
  • Torque – 370 lb-ft @ 1500 rpm
  • Fuel Type – Petrol
  • Valvetrain – DOHC
  • Valves/cylinder – 4 (Total 24v)
  • Transmission – Six speed manual
  • Drive Type – Rear-wheel drive

All these specifications give the BMW 1M engine a great performance along with fuel savings and not to forget, a comfortable drive experience. Let us now discuss some common issues with the 1M engine.

Common 1M Engine Issues

We have already discussed the different specifications and features of the BMW 1M Engine. There are some common problems too with the engine that you must know. Knowing about these common problems helps in preventing them. Let us get to know about each one of them.

Damage to Engine Parts

For high power and speeds, the combustion rate inside the engine also has to be high. As the combustion rate becomes higher, the temperature and pressure of the engine increase. As a result, internal parts of the Engine are damaged. 

Valve Oil Leak

Valve oils are essential for lubrication as well as combustion purposes in an engine. Due to too much heat and pressure, there is damage to the valve cover. This results in leakage of 1M valve oils. 

Fuel Leak

A fuel leak is also very common in the 1M engines particularly when the car gets older. This happens due to the breakage of valves or pistons also in some cases. In addition, some parts of the engine can break too, due to which fuel leakage happens. 

Oxygen sensor problem 

Oxygen sensors are responsible to keep a check on the unburned oxygen in the engine. These oxygen sensors sometimes start to malfunction and do not give a correct level. Replacing oxygen sensors is a costly repair but it needs to be done when there is no option left.

Emission problem

BMW 1M engine also faces problems related to leaks and the failure of emissions. When there is an emission problem, there is no solution left except replacement. 

All these issues will not arise from the proper maintenance of your car engine. So next we are going to discuss BMW 1M engine maintenance. Knowing about it will help you in taking care of your engine as well as your car in long run.

BMW 1M Engine Maintenance

The BMW 1M engine is an integral part of your car. To keep the engine up and running efficiently, regular maintenance is essential. Sometimes complete replacement is essential, specifically when there is improper maintenance. There are some important things that will help you in maintaining your BMW 1M engine and avoid any issues in the long run.

Engine Oil Change

The engine oil of your car needs to change after specific miles based on BMW guidelines. You have to follow the BMW maintenance schedule in order to change engine oil.

Fix Leakage of Engine Oil

Finding and fixing the leakage of engine oil in 1M needs to happen immediately. Not doing it timely can lead to further problems.

Check engine light issue

Always get your car check when check engine light glows. The root cause of the problem needs fixation on a timely basis.

Change Timing belt

The timing belt needs replacement when there is wear and tear in it. By timely change, the engine lasts longer.

1M Engine Coolant 

1M engine consists of a unique coolant chamber that keeps the temperature inside it low. As the combustion process takes place at a high temperature it results in abrasion of the engine parts. To fix this problem, car engine coolant requires proper maintenance at regular intervals.


To conclude the BMW 1M is a great car engine to have inside your BMW car. Here we have discussed the full specifications, the most common issues, and regular maintenance required for it. By following the BMW maintenance schedule you can prevent most of the issues with your engine and car. We are confident that you have got all the important information that you were looking for. Using this information you can take full care of your car engine. Also, you can make better decisions in case it requires replacement. For similar readings please refer to BMW Alpina B7 Engine, BMW Active Hybrid 5 Engine

You may also have an interest in Used BMW Engines. That is all about the BMW 1M Engine. Hope you find full value in it.

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