Engine - Repair - E90/E91 (-08); E92/E93 (N51/N52)

• Engine, General
  • Safety information for working on vehicles with automatic engine start-stop function (MSA)
  • 11 00... Service - engine oil (N51)
  • 11 00... Engine oil service (N52K)
  • 11 00 Removing and installing/replacing acoustic cover (N51)
  • 11 00 Removing and installing/replacing acoustic cover (N52/N52K)
  • 11 00 Removing and installing/replacing ignition coil cover (N52K)
  • 11 00 050 Removing and installing engine (N51)
  • 11 00 050 Removing and installing engine (N52K)
  • 11 00 670 Securing engine in installation position (N51)
  • 11 00 670 Securing engine in installation position (N52K, N53)
  • Engine identification
  • Mounting engine on assembly stand (N51)
  • Mounting engine on assembly stand (N52K)
• Cylinder Head And Cylinder Head Cover
  • 11 12 000 Removing and installing/sealing cylinder head cover (N51)
  • 11 12 000 Removing and installing/sealing cylinder head cover (N52K)
  • 11 12 100 Removing and installing/sealing cylinder head (N51)
  • 11 12 100 Removing and installing cylinder head (N52K)
  • 11 12 101 Replacing cylinder head gasket (N51)
  • 11 12 101 Replacing cylinder head gasket (N52K)
  • 11 12 719 Resurfacing cylinder head sealing face (N51)
  • 11 12 719 Resurfacing cylinder head sealing face (N52K)
  • 11 12 729 Checking cylinder head for leaks (N51)
  • 11 12 729 Checking cylinder head for water leaks (N52K)
• Oil Sump
  • 11 13 000 Removing and installing, sealing or replacing oil sump (N51)
  • 11 13 000 Removing and installing, sealing or replacing oil sump (N52K)
• Housing Cover
  • 11 14 005 Replacing front crankshaft seal (N51)
  • 11 14 005 Replacing front crankshaft seal (N52K)
  • 11 14 010 Replacing vacuum pump sealing cover (N51)
  • 11 14 010 Replacing sealing cover for vacuum pump (N52K)
  • 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 14 151 Replacing crankshaft seal on transmission side (N51) (up to 12/31/08)
  • 11 14 151 Replacing radial crankshaft seal on transmission side (N51) (from 1/1/09)
• Crankshaft With Bearings
  • 11 21 500 Replacing crankshaft (N51)
  • 11 21 500 Replacing crankshaft (N52K)
  • 11 21 505 Sealing crankcase lower section (N51)
  • 11 21 505 Sealing crankcase lower section (N52K)
    • Notes
    • Version 1
    • Version 2
    • Automatic transmission
    • Manual gearbox
  • 11 21 531 Replacing all crankshaft main bearings (N51)
  • 11 21 531 Replacing all main crankshaft bearing shells (N52K)
  • 11 21 571 Replacing roller ball bearing in crankshaft (N52K)
    • Necessary preliminary tasks
• Flywheel
  • 11 22 500 Removing and installing or replacing flywheel (N51)
  • 11 22 500 Removing and installing/replacing flywheel (N52K)
• Vibration Damper
  • 11 23 010 Removing and installing or replacing vibration damper (N51)
  • 11 23 010 Removing and installing/replacing vibration damper (N52K)
• Connecting Rod With Bearings
  • 11 24 571 Replacing all connecting rod bearings (N51)
  • 11 24 571 Replacing all connecting rod bearing shells (N52K)
• Piston With Rings And Pin
  • 11 25 530 Removing and installing/replacing all pistons (N51)
  • 11 25 530 Removing and installing/replacing all pistons (N52K)
  • 11 25 671 Replacing piston rings on all pistons (N51)
  • 11 25 671 Replacing piston rings on all pistons (N52K)
• V-Ribbed Belt With TENSIONER / Deflect Element
  • 11 28 010 Replacing alternator drive belt (N51)
  • 11 28 010 Replacing alternator drive belt (N52K)
  • 11 28 020 Replacing tensioning device for alternator drive belt (N51)
  • 11 28 020 Replacing tensioning device for alternator drive belt (N52K)
• Camshaft
  • 11 31 005 Checking camshaft timing
  • 11 31 005 Checking timing of camshaft(s) (N52K)
  • 11 31 025 Removing and installing/replacing intake camshaft (N51)
  • 11 31 025 Removing and installing/replacing intake camshaft (N52K)
  • 11 31 028 Removing and installing/replacing exhaust camshaft (N51)
  • 11 31 028 Removing and installing/replacing exhaust camshaft (N52K)
  • 11 31 051 Replacing timing chain (N51)
  • 11 31 051 Replacing timing chain (N52K)
  • 11 31 090 Installing and removing/replacing chain tensioner piston (N51)
  • 11 31 090 Installing and removing/replacing chain tensioner piston (N52K)
  • 11 31 505 Adjusting camshaft timing (N51)
  • 11 31 505 Adjusting timing of camshaft(s) (N52K)
• Rocker Arm With Bearings Mount
  • 11 33 050 Removing and installing/replacing all rocker arms (N51)
  • 11 33 050 Removing and installing/replacing all rocker arms (N52K)
• Valves With Springs
  • 11 34 552 Removing and installing or replacing all valves (N51)
  • 11 34 552 Removing and installing/replacing all valves (N52K)
  • 11 34 560 Replacing all valve stem seals (N51)
  • 11 34 560 Replacing all valve stem seals (N52K)
  • 11 34 715 Replacing all valve springs (N51)
  • 11 34 715 Replacing all valve springs (N52K)
• Variable Camshaft Timing
  • 11 36 046 Removing and installing/replacing intake and exhaust adjustment units (N51)
  • 11 36 046 Removing and installing/replacing intake and exhaust adjustment units (N52K)
  • 11 36 655 Removing and installing/replacing both solenoid valves (N52K)
• Variable Valve Gear
  • 11 37 005 Removing and installing/replacing eccentric shaft (N51)
  • 11 37 005 Removing and installing/replacing eccentric shaft (N52K)
  • 11 37 010 Removing and installing/replacing intermediate levers (N51)
    • Notes
    • Version 1
    • Version 2
  • 11 37 010 Removing and installing/replacing intermediate levers (N52K)
    • Notes
    • Version 1
    • Version 2
  • 11 37 020 Removing and installing/replacing positioning motor for eccentric shaft (N51)
  • 11 37 030 Removing and installing/replacing eccentric shaft sensor (N51)
• Oil Supply
  • 11 40 000 Checking engine oil pressure (N51)
  • 11 40 000 Checking engine oil pressure (N52K)
• Oil Pump With Filter And Drive
  • 11 41 000 Removing and installing oil pump (N51)
  • 11 41 000 Removing and installing/replacing oil pump (N52K)
  • 11 41 010 Removing and installing/replacing chain module for oil pump/vacuum pump (N51)
  • 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
• Oil Filter And Lines
  • 11 42 020 Removing and installing/replacing fullflow oil filter (N51)
  • 11 42 020 Removing and installing/replacing fullflow oil filter (N52)
    • Notes
    • Recycling
    • Necessary preliminary tasks
• Water Pump With Drive
  • 11 51 000 Removing and installing/replacing water pump (N51)
  • 11 51 000 Removing and installing/replacing water pump (N52K)
• Thermostat And Connections
  • 11 53 000 Removing and installing/replacing coolant thermostat (N51)
  • 11 53 000 Removing and installing/replacing coolant thermostat (N52K)
• Intake Manifold
  • 11 61 050 Removing and installing intake air manifold (N51)
  • 11 61 050 Removing and installing air intake manifold (N52K)
• Exhaust Manifold
• Vacuum Pump
  • 11 66 000 Removing and installing or replacing vacuum pump (N51)
    • Necessary preliminary work
  • 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)
  • 11 78 545 Replacing both lambda oxygen monitoring sensors (N52K)