Engine Control Module Unit High Performance 

Wear Proof A2721535291 Perfect Fit Heavy Duty Durable for Car

Engine Control Module Feature:

1. OE Number: The referencing OE number of this ECM engine computer are A2729005800, A2729002100, A0034467740, A2721535691, A2721535291, A2721500079, A2729004700.
2. Fitment: The engine control module unit is a replacement for Mercedes‑Bens E350 C300 C280 C350 GLK300 GLK350 M272 GLK280, please check the model before ordering.
3. Durable Material: Made of durable aluminum alloy shell and welded internal circuit board, effectively prevents vibration wear and ensures its long service life.
4. Perfect Replacement: Ideal replacement parts for replacing burned out computer boards to get your car back on the road, can perfectly match to your car.
5. Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability.

Engine Control Module Installation Note:

1. Installation and programming is highly recommended by professional engineers
2. When installing the product, pay attention to check the reason for the previous computer board to avoid burning the computer board again with the same fault.
3. Check whether the voltage is normal (voltage about 12V) before installing the computer board, it is recommended not to install it above 15V, check whether the line is normal and whether the iron is good, otherwise there is a possibility of burning the computer board.
4. After installing the computer board (insert the plug for trial operation), the key is turned on to the NO position, and it can be switched back and forth three or four times before starting. 
5. If the car has anti theft function, you need to decode (match) first, this depends on your car and not the computer board.

Engine Control Module Installation Method:

1. First unload the battery wire a live wire, then install the computer board (circuit board), and then connect the wire.
2. After the car key turn to NO, do not land the car, wait 1-2 minutes, and then ignite.
3. If the fire cannot be caught last time, repeat the previous step and try again, or see if there is dust inside the computer board and the computer board plug, if there is any, you can clean it with a clean brush, or check whether the pins are neat, so that the computer board is basically OK.

Engine Control Module Packing List:

1 x Engine Computer Control Module

Note:

• Please check the OEM of ECU carefully before purchase. (Contact info@getobdtool.com or +86 136 1282 7578 to let me know your ECU number)
• It is highly recommended to find a professional engineer for installation and programming !!! (Otherwise it will cause circuit board damage situation)