Engine - Repair - N52 - E90

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Engine, General
- 00 Danger of poisoning if oil is ingested/absorbed through the skin
- Engine identification
- 11 00... Engine oil service (N52K)
- Mounting engine on assembly stand (N52K)
  - Notes
  - Necessary preliminary tasks
- 11 00... Overview of consumables (Electronic Parts Catalogue)
- 11 00 050 Removing and installing engine (N52K)
  - Notes
- 11 00 Removing and installing/replacing acoustic cover (N52/N52K)
  - Notes
  - Necessary preliminary tasks
- 11 00 Removing and installing/replacing ignition coil cover (N52K)
  - Necessary preliminary tasks
- 00 Risk of injury if oil comes into contact with eyes and skin
- 00 Safety information for working on vehicles with automatic engine start-stop function (MSA)
- 00 Safety instructions for handling oil
- 11 00 670 Securing engine in installation position (N52K, N53)
  - Notes
Cylinder Head And Cylinder Head Cover
- 11 12 729 Checking cylinder head for water leaks (N52K)
  - Notes
- 11 12 100 Removing and installing cylinder head (N52K)
- 11 12 000 Removing and installing/sealing cylinder head cover (N52K)
- 11 12 101 Replacing cylinder head gasket (N52K)
  - Notes
  - Necessary preliminary tasks
- 11 12 719 Resurfacing cylinder head sealing face (N52K)
  - Necessary preliminary tasks
Oil Sump
- 11 13 000 Removing and installing, sealing or replacing oil sump (N52K)
  - Notes
  - Necessary preliminary work
Housing Cover
- 11 14 151 Replacing crankshaft seal (N52K) up to 12/31/08
  - Necessary preliminary tasks
- 11 14 151 Replacing crankshaft seal (N52K) on transmission side from 1/1/09
- 11 14 005 Replacing front crankshaft seal (N52K)
  - Notes
- 11 14 010 Replacing sealing cover for vacuum pump (N52K)
  - Necessary preliminary tasks
Crankshaft With Bearing
- 11 22 500 Removing and installing/replacing flywheel (N52K)
- 11 21 531 Replacing all main crankshaft bearing shells (N52K)
- 11 21 500 Replacing crankshaft (N52K)
- 11 21 571 Replacing roller ball bearing in crankshaft (N52K)
  - Necessary preliminary tasks
- 11 21 505 Sealing the crankcase's lower part (N52K)
Flywheel
- 11 22 500 Removing and installing/replacing flywheel (N52K)
- 11 22 513 Replacing roller bearing for dual-mass flywheel
  - Notes
Vibration Damper
- 11 23 010 Removing and installing/replacing vibration damper (N52K)
  - Necessary preliminary tasks
Connecting Rod With Bearing
- 11 24 571 Replacing all connecting rod bearing shells (N52K)
  - Notes
  - Necessary preliminary tasks
Piston With Rings And Pin
- 11 25 530 Removing and installing/replacing all pistons (N52K)
- 11 25 671 Replacing piston rings on all pistons (N52K)
  - Necessary preliminary tasks
V-Ribbed Belt W.Tens./Deflect.ELEMT
- 11 41 115 Removing and installing/replacing hydraulic valve (N52K)
  - Notes
  - Necessary preliminary tasks
- 11 28 010 Replacing alternator drive belt (N52K)
- 11 28 020 Replacing tensioning device for alternator drive belt (N52K)
Camshaft
- 11 31 505 Adjusting timing of camshaft(s) (N52K)
  - Necessary preliminary tasks
  - Installation
- 11 31 005 Checking timing of camshaft(s) (N52K)
  - Necessary preliminary tasks
  - Installation
- 11 31 090 Installing and removing/replacing chain tensioner piston (N52K)
- 11 31 028 Removing and installing/replacing exhaust camshaft (N52K)
- 11 31 025 Removing and installing/replacing intake camshaft (N52K)
  - Notes
  - Necessary preliminary tasks
- 11 31 051 Replacing timing chain (N52K)
Rocker Arm With Bearing Mount
- 11 33 050 Removing and installing/replacing all rocker arms (N52K)
  - Necessary preliminary tasks
  - Installation
Valves With Springs
- 11 34 552 Removing and installing/replacing all valves (N52K)
  - Necessary preliminary tasks
  - Arrangement
- 11 34 715 Replacing all valve springs (N52K)
  - Necessary preliminary tasks
- 11 34 560 Replacing all valve stem seals (N52K)
  - Necessary preliminary tasks
  - Installation
Variable Camshaft Timing
- 11 36 655 Removing and installing/replacing both solenoid valves (N52K)
- 11 36 046 Removing and installing/replacing inlet and exhaust adjustment units (N52K)
  - Necessary preliminary tasks
  - Replace central bolts
Variable Valve Gear
- 11 37 005 Removing and installing/replacing eccentric shaft (N52K)
  - Necessary preliminary tasks
- 11 37 010 Removing and installing/replacing intermediate levers (N52K)
- 11 37 020 Removing and installing/replacing servomotor for eccentric shaft (N52K)
- 11 37 030 Removing and installing/replacing eccentric shaft sensor (N52)
Oil Supply
- 11 40 000 Checking engine oil pressure (without Hydraulic Valve)
- 11 40 000 Checking engine oil pressure (with Hydraulic Valve)
  - Notes
  - Installation
Oil Pump With Filter And Drive
- 11 41 010 Removing and installing/replacing chain module for oil pump/vacuum pump (N52K)
- 11 41 115 Removing and installing/replacing hydraulic valve (N52K)
  - Notes
  - Necessary preliminary tasks
- 11 41 000 Removing and installing/replacing oil pump (N52K)
  - Necessary preliminary tasks
  - Replace aluminium screws
Oil Filter And Lines
- 11 42 020 Removing and installing/replacing fullflow oil filter (N52)
Water Pump With Drive
- 11 51 000 Removing and installing/replacing water pump (N52K)
Thermostat And Connections
- 11 53 000 Removing and installing/replacing coolant thermostat (N52K)
Intake Manifold
- 11 61 050 Removing and installing air intake manifold (N52K)
  - Necessary preliminary tasks
  - Installation
Exhaust Manifold
- 18 40 050 Removing and installing/replacing front exhaust manifold (N52, N52K)
  - Necessary preliminary tasks
- 18 40 060 Removing and installing/replacing rear exhaust manifold (N52, N52K)
  - Necessary preliminary work
Vacuum Pump
- 11 66 000 Removing and installing or replacing vacuum pump (N52)
  - Necessary preliminary work
Emission Control, Oxygen Sensor
- 11 78 513 Replacing both lambda oxygen control sensors (N52K)
  - Notes
  - Lambda control sensor, cylinder nos. 1 to 3
- 11 78 545 Replacing both lambda oxygen monitoring sensors (N52K)
  - Notes