00.27
Checking/renewing spark plugs
(Inspection II)/renewing (Inspection III)
•
Unscrew and remove spark plugs with the spark
plug wrench, BMW No. 12 3 510.
e Caution:
Do not bend electrodes - risk of breakage!
Electrode gap: .......................... 0.8 mm (0.031 in)
Gap wear limit:........................... 1.0 mm (0.039 in)
X Tightening torque:
Spark plug.................................................... 20 Nm
Check synchronising
(Inspections I, II and III)
•
The engine must be at regular operating temper-
ature.
•
Connect the BMW Synchrotester hose to the
vacuum stub pipe (arrow) and the lines to the
MoDiTeC.
L Note:
If the left/right readings differ by more than 30 milli-
bars (0.42 psi), check the air intake system for leaks.
C000060
12 3 510
C000220
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