Engine Control Unit (ECU) failure is a common problem on all BMW vehicles. As with any electronic component, ECU failure occurs due to parts reaching the end of their life span, voltage spikes or because of water damage. Unfortunately, BMW ECU units are extremely expensive to replace. ECU units often cost between $1000-2000 if purchased from the original manufacturer. Fortunately for you, the ECU Pro offers a repair or replacement BMW ECU at a fraction of this cost. Our replacement ECU have a longer warranty than the original manufacturer and we normally offer faster service than the original manufacturer.
ECU failure can be identified by visual inspection or by reading fault codes from the vehicle. To read fault codes you need a fault code reader. If you do not have a fault code reader any garage will be able to read the fault codes for you. Below are some common failures that we can test for with our BMW ECU Collect and Test Service as well as an estimated repair price:
General ECU failure: $200 -400 per repair depending on ECU
Injector driver faulty
Cylinder Misfires
C9304 BSD databus communications fault
Internal valvetronic failure or valvetronic under voltage detected
No ignition spark on one cylinder
133902 DME internal fault
134B02 valvetronic servomotor supply voltage short circuit to earth
DME Master relay Activation
Intelligent battery sensor (IBS) related codes
134B02 valvetronic servomotor supply voltage short circuit to earth
12474 or 30BA injection valve failure
12475 or 30BB injector 4,5,6 failure
Blown ECU: $400-800 depending on the ECU
Water damaged DME
Corrupted DME coding
Blown DME due to jump-started vehicle
DME processor failure
If you experience any of these symptoms you can send us your DME for a repair. We will test the DME and either repair it or offer you a replacement DME depending on the damage.
Our current response time on orders is only 24 business hours. The same key can be used in the car and no additional programming is required. The vehicle will be 100% back to normal.
All our work comes with a 1-year warranty and free 30-day technical support!
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