DI Diesel Engines M57/M67 - Common Rail Sec. 5 P.2
Course contents/Background material
System structure
The lubrication system consists of following components:
• Oil pan with dipstick (see engine components)
• Oil pump
• Oil filter with integrated oil-to-water heat exchanger
• Oil spray nozzles
13
15
14
12
8
11
6
10
9
7
5
4
1
3
2
1 - Oil pump 9 - Pressure supply to chain tensioner
2 - Oil intake pipe 10 - Riser to cylinder head
3 - Unfiltered oil duct before filter 11 - Pressure supply to vacuum pump
4 - Oil filter with oil cooler 12 - Pressure supply for upper chain lubrication
5 - Precision oil gallery after filter (main oil gallery) 13 - Camshaft bearing
6 - Crankshaft main bearing 14 - Hydraulic valve lash adjuster gallery (HVA)
7 - Pressure supply to exhaust turbocharger 15 - Runout stop, HVA gallery
8 - Piston spray nozzle (hook-type nozzle)
KT-3847
Fig. 36: Lubrication system overview M57 E38/E39
© BMW AG, Service Training
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