Group 62 Instrument Service Bulletins

# Group 62 Instruments Service Bulletins

#### Bulletin number

#### Title

#### Description

#### Date of issue

62 02 84 (824) | High speedometer readings | More than 4% high gently turn needle down further at rest | April 1984
62 03 84 (886) | Clock Liquid Crystal Display | New OBC has back light, don't change out OBC due to loss of visibility of display | November 1984
62 04 84 (901) | Circuit board - service indicator / temp gauge | Damage to circuit board from mixing lower screws securing cluster to dash. Longer screws can damage circuit board if placed in wrong holes | December 1984
62 03 85 (1033) | Coding plugs | Improper tachometer or economy gauge reading, incorrect coding plug. Contains coding plug chart | June 1985
62 05 85 (1075) | Service indicator lights | If lights go out too quickly, i.e. one light every 200 miles, change fuel economy gauge. | July 1985
62 02 86 (1151) | Service interval indicator printed circuit board | Motometer board installed in VDO cluster requires a tab be broken off in the cluster for clearance. | February 1986
62 03 86 (1229) | Erratic instrument cluster operation | Check, in order, fuses coding plug, coding plug circuit board. | January 1988
62 01 87 (1371) | Erratic / incorrect operation of Fuel / Temp gauges | Check for tightness of nuts on rear of gauges. | April 1987
62 02 87 (1391) | Check Engine light, 1987 325iC | Fuse 10 is blown. Wire for light can rub on additional support behind cluster in iC models | July 1987
62 05 88 (1689) | Active check control M3 | Check display flashes in cluster without fault light in overhead display. Check resistance at C101, disconnected, engine side. Pin 2 and ground 0 Ohms, pin 10 and ground 1000 Ohms | July 1988
62 01 89 (1803) | Handling of instrument cluster printed circuit boards | Use static protection, package correctly for shipping | January 1989
62 04 89 (1913) | Service interval indicator II ( 7 LED's) from 6/89 | Design improvements, change to lithium batteries, batteries only needed if main battery disconnected. | November 1989
62 02 90 (3023) | Service interval indicator 1 (9 LED's) | New style board with Lithium rather than NiCad, on off switch for replacement boards for pre 1/86 cars | April 1990
62 04 91 (3245) | Inspection light in service indicator comes on with one or more green LED's still on | All 318 with M42, Incorrect coding plug which should have number 23 on back. | March 1992

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson