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.
Coding Code (Code Number): Notes
E32 and E34 vehicles produced from 9/90 to 10/91 were not ZCS compatible. For this limited range of production a coding code is required in order to properly code the following control modules:
- IHKR 2 & 3
- EDC III
- DWA
All other replacement control modules (except DME) within this production range are precoded at the factory.
The coding code is a single digit. Like variant coding, the code is entered via the DISplus/GT1/SSS. By entering a valid code into the module a set of operational data specific to the code entered is assigned to the operating program of that control module.
Use the Manual With the Right Hardware
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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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