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Engine - Hesitation/Poor Throttle Response: Overview

90bmw11 GROUP 11 Engine
Bulletin Number 11 11 84 (920)

Montvale, NJ December 1984 Technical Dept.
This bulletin supersedes S.I. Bulletin 11 02 83 (712). Please discard S.I. 11 02 83 (712). Additional information relative to the newer MOTRONIC control units is presented. Also, reference to "Red Dot" MOTRONIC control units has been dropped due to some confusion.

SUBJECT: Initial Driveability

MODELS: 1982 633CSi/733i 1983 533i/633CSi/733i 1984 533i/633CSi/733i

Complaint: A condition of "hesitation/poor throttle response" during the first several minutes of operation after starting a "cold" or "warm" engine at an ambient temperature above 75~F.

Cause: Internal re-programming of the new generation Motronic Control Unit was not sufficient to compensate for elimination of the external 560 OHM resistor.

Correction: Installation of an external resistor in the NTC line.
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