Replacing the ECU (Control Unit) with a new one would cost you a huge amount of money so you are better off finding one from the used spare parts market. But it’s not easy to find such technical parts with unique specifications and it could cost you time and money. Your best bid is to find it through an online auto spare parts market where not only it is easier to find but there is more choice as well. 
When You Should Replace Your ECU (Control Unit)?
Without a doubt, ECU (Control Unit) is one of the most important parts of a vehicle’s engine mechanism. It controls multiple functions and regulates fuel and airflow to the engine. It is also responsible for the vehicle's smooth running and performance. Once it goes wrong many functions can cease to work properly and your vehicle will most probably go into limp mode. This is the time when you should decide that you would like to replace the ECU (Control Unit).
Give Partfinder UAE a Chance to Help you Find ECU (Control Unit)
Online car parts search can be scary at times. There is often too much choice and the authenticity of the seller is always in question. We at Partfinder UAE have you covered. We have trusted and verified sellers on our site who sell authentic auto spare parts and you get an abundance of choices so you can choose the part according to your specifications and budget. 
Buying with us is easy, you just enter the make, model, and year of the vehicle and see what parts are available. You choose the part and we shall deliver it to your doorstep.
History of ECU Control Units
In layman’s terms, an ECU (Control Unit) which stands for engine control unit is the brain of the engine that controls and regulates the proper functioning of the engine. Functions that it looks after include regulating and maintaining the fuel average and maintaining air in the injection part and it also helps to increase the horsepower of the engine.
BMW can be credited with creating the earliest form of ECU (Control Unit) when they used one in their aviation radial engine in 1939. In its initial phase, it had its limitations and was not considered a viable option. The modern ECU (Control Unit) that we see today is a sophisticated engine management system of a hybrid digital actuator. They were first used by General Motors and have come a long way since. Today they almost control every aspect of the engine performance.