Helpful Articles Page 1
Diesel Fuel Wicking into the DDE: Why Your BMW X5 35d Loses Communication
If you've got a BMW X5 35d (or 30d) that keeps dropping into limp mode, here's what you need to know....
JEREMY PROOMEAug 18, 2026
BMW M52/M54 Struggling to Start When Hot or Cold? Here's What to Look For
An inconsistent starting vehicle may not be due to the battery or sensors, but the DME itself. Here's how to find out....
JEREMY PROOMEAug 18, 2026
BMW/MINI CAS: Repair or Replace? How We Decide and What It Costs
Can a failing BMW/MINI CAS be repaired, or does it need replacing? Here's the exact decision process we use, what each path costs, and how we prove the fix....
JEREMY PROOMEJul 31, 2026
Fitted a Used BMW/MINI FEM or BDC and Now Things Don't Work? Here's Why
Fitted a used BMW/MINI FEM or BDC and now mirrors, locks or seat heaters don't work? It's a vehicle-order coding issue. Here's what's happening and how it's fixed....
JEREMY PROOMEJul 31, 2026
Why You Must Send Your ECU With Your CAS, EWS, or FEM
Wondering why we ask for your ECU when you only sent a CAS, EWS or FEM? It's how we confirm the modules communicate and verify a true plug-and-play fix....
JEREMY PROOMEJul 31, 2026
BMW & MINI CAS Failure: Symptoms & Fault Codes
No-start, dash clicking, or headlights that won't switch off? These are the real CAS3 failure symptoms and fault codes we see every week and how they're fixed....
JEREMY PROOMEJul 31, 2026
Can an ECU Cause Poor Fuel Economy?
Is a faulty ECU the cause of your car using too much fuel? Here's how to find out....
JEREMY PROOMEJun 30, 2026
ECU Diagnostic Scanner: What You Need to Know
ECU scanners can be incredibly handy tools, but there are a few things to take note of....
JEREMY PROOMEJun 19, 2026
Common 2037394 PACCAR Fault Codes - What They Mean (and How to Troubleshoot Them)
Trying to work out why your Paccar MX-13 engine is causing problems? Check out the list of common 2037394 error codes to get to the bottom of it....
JEREMY PROOMEJun 9, 2026Mail in automotive electronic repair services
The ECU Pro offers an affordable mail-in repair service for automotive electronics. To have your unit repaired, simply remove the part and mail it to us. Our professional team will either test, repair, or clone your unit.
Our team has over 30 years experience in automotive electronic repairs. We specialize in German vehicles such as BMW, Mercedes and Mini. Our main focus is engine control unit repairs ( ECU, PCM or DME). Our state of the art facility has over 30 test vehicles to ensure that all parts are tested in actual vehicles before being returned to our clients.
Most of the services we provide is plug and play and doesn't require any additional coding.
