LCD Display Module - Erroneous Display

90bmw12 Group 62 Instruments
Bulletin Number 62 01 90 (3007)
Woodcliff Lake, NJ August 1990

Service Engineering
This Service Information bulletin supersedes S.I. 62 01 90 (3007) dated April 1990. It explains how the production date code is made-up.

Please remove and discard S.I. 62 01 90 (3007) dated April 1990 from your S.I. binder.



SUBJECT: Erroneous Display In LCD Display Module

MODEL: E32 and E34 (with Redesigned Instrument Cluster)

Situation: After switching the ignition ON, flashing and illegible displays may alternately appear in the LCD Display Module.

Cause: Interference from the IHKR/IHKA coolant pump.

Correction: Replace the coolant pump with one equipped with a protective diode.

These pumps have a production date of 279 or later.
Warranty
Status: Covered under the terms of the BMW New Car Limited Warranty of 3 Years/36,000 Miles.

Defect code: 64 11 35 79 00

Labor operation: 64 11 260

Labor allowance: 7 FRU - All except 750iL
9 FRU - 750iL

Any questions regarding warranty coverage should be discussed with your District Service Manager.