Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1990 BMW 535iFACTORY OEM SERVICE PROCEDURE
New Programming And Coding System: ISTA/P (09 05 01)
Publication date: 2009-03-03
Reference number: 09 05 01
NEW PROGRAMMING AND CODING SYSTEM: ISTA/P
Reference number: 09 05 01
NEW PROGRAMMING AND CODING SYSTEM: ISTA/P
TECHNICAL SERVICE BULLETIN
Reference Number(s): SI B 09 05 01, Date of Issue:
March 3, 2009
Superceded Bulletin(s): SI B09 05 01, Date of Issue:
May 2009
| BMW: | All |
| GROUP: | Programming/Coding Explanations |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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