| 64 03 83 (749) |
Heater control valve fuse installation, 318i |
All models have a 2 amp fuse installed between the heater control valve
and it's connector, blue and brown wires. Standard since May 1983 |
May 1983 |
| 64 03 84 (826) |
Air conditioning noise with 4 vane compressor 1984 318i |
Replace with 5 vane compressor (green label) on customer complaint of
noise |
September 1984 |
| 64 08 84 (852) |
Heating system complaints |
Incorrect operation of controls, or poorly seating vent doors. |
December 1984 |
| 64 13 84 (880) |
Recall Campaign 84V-107 1984 318i |
Install heater control valve inline fuse |
November 1984 |
| 64 15 84 (900) |
Air conditioning compressor - Electrical, 318i |
Clutch does not engage due to cut or loose connection. |
December 1984 |
| 64 16 84 (940) |
Air conditioning / Heater blower motor switch |
Some 85 model year 325e got 3 speed switch instead of 4 speed, change
control panel and switch |
December 1984 |
| 64 05 85 (1038) |
Refrigerant Capacities |
E30 2.1 lbs., M3 1.9 lbs. |
July 1987 |
| 64 06 85 (1110) |
Annoying sweet odor from heater |
Leaking heater core, updated core released |
December 1985 |
| 64 08 86 (1284) |
Air conditioning compressor clutch does not engage |
Check diode and wire from diode to clutch |
December 1986 |
| 64 01 87 (1471) |
Compressor clutch replacement, rotary style compressors |
Newly released clutch kits. Pre 9/87 P/N 64 52 1 380 071. Since 9/87 P/N
64 52 1 386 297 |
January 1988 |
| 64 01 88 (1566) |
Auxiliary Fan Low Speed Resistor |
Procedure to replace Auxiliary fan resistor |
January 1988 |
| 64 03 88 (1604) |
Auxiliary cooling fan M3 |
By design, earlier cars have auxiliary fan wired to run with ignition on,
can be updated to later style with kit P/N 17 11 9 061 201 |
March 1988 |
| 64 04 88 (1622) |
AC High Pressure Line |
Deletion of fuel cooler, new AC lines do not have fuel cooler, eliminate
cooler if replacing line. |
April 1988 |
| 64 12 88 (1648) |
Insufficient heating or cooling or odors. |
Check for obstruction of vents under seats. |
May 1988 |
| 64 14 88 (1666) |
Air conditioning compressor controls |
1/88 and later have compressor control switch eliminated on lower and
center air distribution slides |
May 1988 |
| 64 16 88 (1682) |
Inoperative AC compressor M3 |
Bad connection at 108°C coolant temp switch. |
July 1988 |
| 64 17 88 (1776) |
Fogging up of windows |
Use AC to dehumidify air |
December 1988 |
| 64 02 89 (1821) |
Fusible plug - Receiver / Drier |
If it blows out, assume the high pressure cut out switch is inoperative. |
February 1989 |
| 64 07 89 (1943) |
Inoperative Air Conditioning |
A/C button fails to illuminate, AC fails to operate. Cars up to 1/88 with
Alpine weather band radio, sticker can fall off radio into slide controls, preventing
slide from activating circuit |
October 1989 |
| 64 06 90 (3095) |
Air conditioner compressor does not engage, 1988 and earlier |
Do not replace faulty compressor enable microswitch, cut wires and join
with an inline fuse. Brings system in line with later production |
August 1991 |
| 64 09 90 (3162) |
Center air distribution lever binds |
Fabricate and install 2 spacers on top of the heater housing, forward of
the radio |
December 1990 |
| 64 08 91 (3373) |
Musty odors form air conditioning units |
Apply spray disinfectant - not covered by warranty |
October 1991 |
| 64 12 91 (3453) |
Air conditioning belt length, 318 M42 |
Belt specification changed from 890 to 885mm |
February 1992 |
| 64 15 92 (3654) |
Air conditioning compressor part numbers M20B25 engine |
If car requires P/N 64 52 8 391 511, use P/N 64 52 1 385 416 |
November 1992 |
| 64 17 92 (3674) |
Small flakes from A/C vents |
Oxidization coming loose from fins of evaporator. Replace evaporator with
P/N 64 51 8 391 780 |
August 1983 |
| 64 01 93 (3721) |
Air conditioning belt tension, M20B25 engine |
Improper tension may cause belt to rub on coolant hose. |
January 1993 |
| 64 08 93 (3836) |
Air conditioning howl / whistle, 93 iC equipped with R134a |
Replace suction hose with P/N 64 53 9 066 449 |
July 1993 |
