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Diagnostic Equipment

Railway Street Garage have been, and continue to use, the same professional BMW diagnostic  equipment as main dealers to diagnose faults and program the cars computers. The BMW ISTA BMW Diagnostics Kit system automatically updates from the BMW central server to ensure all the latest updates are available.


Diagnostics has become our key area and with more electrical and computer controlled items being fitted to cars we are seeing an increasing number of faults occurring.

Fault-finding and rectification requires expensive dedicated test equipment and well trained technicians of which we have both. This places us in a strong position to provide "Diagnostic Services" to the general public and trade alike.


We have the experience and capabilities to fault find BMW electrical systems to component level. We are able to supply, fit and program new and sometimes used BMW electronic control modules and ECU'S. We are able to encode new and used control modules using developer tools designed for BMW development companies, something that main agents are not able to do.


Common Faults:

Water damaged ECU'S

Corrupted FRM

Shorted/damaged light modules

Electronic steering lock failure

Airbag lights

ABS mechanical/electronic faults

Security and immobiliser

Misfire on petrol and diesel engines

Our range of electrical services


  • Alternator

  • Starter Motor

  • Headlamps

  • Wiring Looms

  • Electric Windows

  • Batteries fault

  • Coil Packs

  • Fuse boxes

  • ECU replacement

  • Alarm faults

  • Immobiliser

  • Re-mapping

BMW E65 750 N62 V8 Valve stem oil seal repair.

The BMW N62 V8 engine found in  the E60 5 series,  E63 6 Series  and the E65 7 series engines has a common problem of smoking after idling for a few minutes.  The seals become hard and brittle and start letting oil past the stem at idle when the vacuum is high - normal driving is generally ok. But when they are getting bad, even pulling away after waiting at the lights leaves an embarrassing cloud of smoke.

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