We have helped thousands of customers fully enjoy their cars again! Our dedicated team and knowledge of the Siemens MS42 systems make us the best option for the repair or Exchange of your engine computer.
Our 5 year "Best on the market" workmanship warranty is included at no cost.
SYMPTOMS OF A BAD MS42 ECU:
If you are reading this maybe your car is not running right anymore, perhaps not even starting .Your mechanic made the diagnostic that the ECU is not good and needs repairs .We Know all the "secrets" related to the MS42 ECU. We are the common sense alternative to help you get your car back on the road FAST!!
We have dedicated hundreds of hours to understand and correctly repair Siemens ECU's, When you choose our service we will correctly diagnose and advise if the ECU is really defective saving you time and money on unnecesary repairs and mechanics labor We have dedicated Bench tester and Physical vehicles were we will test, diagnose and properly program your ECU, ensuring that you will get a real Plug and play solution.
FEATURES OF OUR REPAIR SERVICE AND EXCHANGE UNITS:
DO NOT BUY A USED ECU SET , WATCH VIDEO HERE
When you choose the repair service also called repair and return "R&R", you need to send your ECU Set to our location.
Once we receive your ECU, we will inspect, test and diagnose.
We perform bench and in vehicle testing for the ultimate diagnostic reliability.
We will report our findings to you. With your approval, we will repair your unit .We will also send you a report with the service performed and parts replaced.
When sending your unit for Repair, send us the ECU/DME Set:
HOW DO I SEND THE ECU FOR REPAIR?
Step 1: Click the orange icon "REPAIR FORM"
Step 2: Fill out the form.
Step 3: Print the email confirmation.
Step 4: Pack your ECU Set securely.
Step 5: Send the repair form along with your ECU Set .
TURN AROUND TIME FOR THE REPAIR:
The average time for the repair process is 3- 5 days once we receive the ECU Set at our office.
OUTRIGHT "VIRGIN" SALE SERVICE
If you buy the unit Outright, we will send you a Rebuilt BMW Siemens MS42 ECU in a "virgin" state.
This means that it will be ready to "get married" to your car's security system, also called EWS. This procedure is also called doing an "alignment" or "synchronization".
This process takes only 2 minutes and it's done with a BMW compatible scanner. We include instructions of this process in the box.
Afterwards the unit will be "married" to your car and start it every single time.
NOTE, WHEN YOU PLACE YOUR ORDER:
How to install the ECU
GT1 Scanner - DME to EWS Alignment Instructions (PDF)
Launch-X431 - DME to EWS Synch Instructions (PDF)
General Technical ECU Troubleshooting Guide
In the industry there are many BMW ECU programming. We wrote a guide to help answer and give you solutions to some of the most commonly asked questions.
We have reverse engineered these ECU's and developed proprietary Equipment that allows us to Re-program used ECU's to your car's VIN Number.
Because if you install a used ECU in any BMW, the VIN number and "Rolling Code" will not match, and it will prevent the car from starting.With a used ECU the car might crank, but it will never get the "permission" to power the fuel pump and send the spark signals.
BMW's have the EWS Module (anti theft device) that has a password feature called the "Rolling Code" which changes between the DME and EWS every time that the car is turned off. This makes it virtually impossible to swap used ECU's between BMW cars.
"NO". Our Exchange ECU's will be programmed to your BMW's VIN number and correct application. However, due to the fact that the EWS systems have a random "Rolling Code" we can't guess what this random code is. Therefore, we reset this feature to make the ECU "blank".
In order for the rebuilt ECU to work in the car, a ECU to EWS Alignment/Synchronization has to be carried out.This is done using a BMW scanner like a GT1, ISTA, Autologic, Launch X431,Baum Tool DS2021and others. It takes less than 5 minutes to "MARRY" the ECU to your car, and once that is done the ECU is ready to start in the car.
NO. ECU re-programming is not required because most repairs are done on the hardware parts and not on the software programming. Once we repair your unit, it will be 100% "Plug and Play" already tested in our actual Tester vehicle.