SERVICE

REPAIR SERVICE

For this service send us the ECU/ DME with the Service Form filled out.
(Note: Pack your ECU/ DME properly to avoid damage during shipping.)

Once we receive your ECU/ DME, we will test and diagnose it. You will receive an e-mail with our diagnostic and recommendation about our findings.

After the initial testing is done, we will contact you to inform the results and ask you for approval to complete the Job.

Average Job turn around: 5 days

Note: Service Form must be filled out BEFORE you ship the ECU/ DME.

If your vehicle is a 1995 model, it most likely features the EWS system (Factory Immobilizer).
A quick way to identify whether your vehicle is equipped with the EWS system is by checking the color of the ECU label:

Brown Label: Typically indicates a NON-EWS ECU
Silver Label: Usually means the ECU is EWS-equipped
If your vehicle does have the EWS system, you must send us the ECU, the EWS module, and at least one key for proper diagnostics.

INSTRUCTIONS

Common Symptoms of a Faulty BMW 525 (E34) ECU

Internal water damage or corrosion on ECU pins
Engine stalls after starting
Engine cranks but does not start
Rough running condition
Check Engine light stays ON
Cylinder misfires
Fuel pump not turning on

TECHNICAL INFO

BMW 525 (1993)

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