| 11 29 82 (688) |
Connecting rod modification M10 M30 (superceded by 11 02 94) |
Describes differences in connecting rods for the M10 and M30 engines as of
May 82 production |
August 1983 |
| 11 04 83 (732) |
M10 Oil pump sprocket |
Change in shaft and sprocket design |
April 1983 |
| 11 05 83 (739) |
Rough idle, 318i |
Increase plug gap to 0.8mm (0.032") |
July 1983 |
| 11 06 83 (752) |
Rough idle, Gear noise, AC malfunction ICU malfunction 318i |
Install AC diode, jump 0° C switch, test system and if necessary, replace
idle control unit |
October 1983 |
| 11 08 83 (772) |
Non interchangeability of connecting rods M20 |
Describes differences in connecting rods between the Munich and Steyr
factories in the M20 engine |
September 1983 |
| 11 11 83 (788) |
Rough Idle / Performance 318i |
Reduction of compression and change of distributor, as of Nov 1 1983. |
December 1983 |
| 11 01 84 (814) |
Engine oil pan leaks (replaces 11 07 83 (769) ) |
Informs of new style of paper oil pan gasket. |
March 1984 |
| 11 04 84 (849) |
Freeze out plugs |
New style of plugs, made from zinc coated aluminum |
August 1984 |
| 11 05 84 (888) |
Engine oil consumption complaint verification and diagnosis |
Describes how to handle the diagnosis of excessive oil consumption, and
what route to take if it exists |
March 1985 |
| 11 06 84 (892) |
Engine oil drain plug |
Use 9mm long bolt thread in steel pan, 18mm in aluminum pan |
November 1984 |
| 11 07 84 (894) |
Coolant hose chafing on lifting bracket, 325e |
Install edge guard on lifting bracket. |
November 1984 |
| 11 08 84 (898) |
Engine oil filters |
Contains BMW's concerns about incorrect oil filters |
October 1984 |
| 11 09 84 (905) |
Toothed belt tensioning pulley P/N 11 31 1 272 424 |
Informs of possible problems with timing belt tensioner pulleys of
improper manufacture |
March 1985 |
| 11 13 84 (926) |
Leaky valve cover gaskets, M10, M20 |
Replace gasket with metal reinforced version - No longer valid |
January 1985 |
| 11 15 84 (939) |
Engine oil viscosity ( winter operation ) |
Simply states to use viscosity listed in the owners manual for your
specific temperature. |
December 1984 |
| 11 04 85 (989) |
Crankshaft pulley M20 |
Do not use pulleys with "Schroth" on front surface |
April 1985 |
| 11 05 85 (995) |
Ignition timing change 318i |
As of May 85 production , ignition timing was increased from 15° @ 2000
rpm, to 26° @ 4000 rpm. |
March 1985 |
| 11 06 85 (999) |
Ignition timing change, Field fix 318i |
States to adjust timing to specs of 11 05 85 for pre May 85 vehicles |
April 1985 |
| 11 07 85 (1000) |
Factory production changes as of 12/84 |
Lists running production changes in the 318i |
April 1985 |
| 11 08 85 (1002) |
Engine oil leaks, M10 and M30 |
Leaks at filter housing caused by high pressure during cold starts. Fix is
to replace housing cover. |
March 1985 |
| 11 10 85 (1011) |
Labor Ops for Carbon removal of intake valves |
Gives warranty times for carbon removal |
May 1985 |
| 11 12 85 (1040) |
Toothed belt tensioning pulley noisy M20 |
Noise more likely from belt or cam gear rather than tensioner. |
June 1985 |
| 11 15 85 (1056) |
All with DME or Jetronic, erratic idle, CO too low or not adjustable |
Check for air leaks at valve cover gasket, throttle housing, oil cap,
dipstick, vacuum hoses, etc. |
September 1985 |
| 11 16 85 (1070) |
Grooved valve stem seals M10/M20/M30 |
Discusses running production change of valve seals. |
August 1985 |
| 11 18 85 (1097) |
Camshaft drive belt replacement M20 M21 |
Timing belt replacement intervals |
August 1988 |
| 11 19 85 (1106) |
Cylinder head bolts and valve adjustment |
Discusses changes in the cylinder head bolts and revised valve adjustment
specs |
June 1986 |
| 11 01 86 (1149) |
Thermostat, housing and cover M20 and M30 |
Running production change of thermostat and housing from 1986 model year |
July 1986 |
| 11 04 86 (1190) |
Cylinder head gasket M20 |
A change in gasket style in the hope of fixing the oil leak that appears
between cylinders 3 and 4. |
March 1986 |
| 11 05 86 (1190) |
Coolant hose retention device M20 |
Check for latest style of bypass hose clamp. Install new style that wraps
completely around the hose. |
June 1986 |
| 11 06 86 (1231) |
Intermediate shaft and oil pump drive gears M20 |
Production change of hardening process for the drive gears |
August 1987 |
| 11 08 86 (1283) |
Camshaft sprocket M20 |
Improper flange thickness, produced between 7/86 and 9/86. Replace cam
sprocket if stamped with W+P286 on the rear face |
February 1989 |
| 11 09 86 (1304) |
Oil leak at intermediate shaft M20 |
Incorrectly seated sealing plug, replace shaft |
January 1987 |
| 11 11 86 (1320) |
Worn valve guide repair |
States that replacing valve guides is no longer a fix, guides are to be
reamed and an oversized valve used. |
April 1988 |
| 11 04 87 (1364) |
Camshaft sprocket M20 |
Discontinuation of sheet metal sprocket, lists extra parts required for
installation of replacement sprocket |
May 1987 |
| 11 05 87 (1419) |
Viscous fan clutches |
Storage, noise and tightening torque info for fan clutches |
October 1987 |
| 11 07 87 (1449) |
Oil cooler and pipes |
12/86 production only, noise from poorly isolated cooler. |
August 1987 |
| 11 09 87 (1468) |
BMW High performance engine oil |
Announces release of BMW engine oil |
September 1987 |
| 11 11 87 (1514) |
Oil pump, 325iX |
Lack of pressure at start up due to air lock, after installation of new
pump |
November 1987 |
| 11 05 88 (1742) |
Flywheel and attaching hardware change, M3 |
Production change in flywheel and bolts. |
November 1988 |
| 11 02 89 (1820) |
Engine oil leakage, 325iX/A 525i/A |
Warns of phantom leaks from messy oil filter removal, leaving oil sitting
in engine mount cavities |
February 1989 |
| 11 03 89 (1822) |
Engine oil drain plug S14 S38 |
Incorrect drain plug length, some got 9mm threads instead of 18mm threads. |
February 1989 |
| 11 05 89 (1868) |
Incorrect dipstick length, M20 12/88 production |
Some models got iX dipstick by accident ID number 1 718 863.9 on bottom of
stick is correct for all but iX |
May 1989 |
| 11 07 89 (1876) |
Crankshaft main bearing service M20 |
Describes changes in crankshaft bearing classifications |
May 1989 |
| 11 08 89 (1877) |
Exchange crankshaft kits, M20 and M70 |
Describes bearings supplied with crankshaft kits |
March 1990 |
| 11 02 90 (3035) |
Oil cooler and oil cooler pipes , except M3 |
Post 9/87 production, droning noise, install mount kit |
June 1990 |
| 11 03 90 (3044) |
New cylinder head bolts M20 |
Replacing hex head bolts with Torx head bolts |
April 1990 |
| 11 04 90 (3051) |
Engine oil cap, all except iX |
Weak retaining springs can break, production between 10/89 and 11/89,
replace cap |
June 1990 |
| 11 05 90 (3058) |
Tappet noise after cold engine start up |
Noise is normal in most cases, replace lifters only if noise continues
after 20 minutes |
May 1990 |
| 11 06 90 (3060) |
Sodium filled valves |
Proper handling and disposal of these valves |
May 1990 |
| 11 07 90 (3117) |
Throttle housing gasket sealing M3 |
Apply a bead of silicone sealer to sealing ridge of gaskets before
installing |
November 1990 |
| 11 09 90 (3137) |
Oil filter head leak M20B25 and S!4 |
Leaking O ring at filter head in cars fitted with oil cooler. New repair
kit, P/N 11 42 9 059 338 |
January 1991 |
| 11 11 90 (3149) |
Engine oil capacities |
Lists all vehicles and their oil capacities - contains many mistakes |
September 1993 |
| 11 01 92 (3484) |
Engine hydraulic lock |
A bad fuel injector can cause hydraulic lock. Describes procedure for
checking and repairing hydraulically locked engine |
January 1992 |
| 11 05 92 (3574) |
Valve cover gasket M42 |
Introduces new valve cover gasket that is re-usable and seals better |
June 1992 |
| 11 02 93 (3749) |
Oil pipe hollow (banjo) bolt, M10, M30 and M70 |
New micro-encapsulated bolt to help prevent them from backing out. |
March 1993 |
| 11 10 93 (3885) |
Coolant leak from timing case profile gasket, M42 |
Introduction of new profile gasket material |
November 1993 |
| 11 02 94 (3960) |
Connecting rod and piston weight classifications |
Weight classification is no longer required. All new BMW rods and pistons
are now designed to cover all weight classes. Never mix manufacturers parts. |
April 1994 |
