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4-cylinder inline engines
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- Contents
- Table of Contents
- Bookmarks
Table of Contents
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Table of Contents
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Preface
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Brief Description
- Engine Data
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Highlights
- Engine Views
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System Comparison
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At a Glance
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Crankcase
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Cylinder Head
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Oil Pan
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Crankshaft Assembly
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Valve Assembly
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Gear Drive
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Belt Drive
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Common Rail Injection
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Charging
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Air Supply
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Exhaust System
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Exhaust System
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Engine Cooling
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Engine Lubrication and Oil Circuit
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Oil Pump
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Coolant Pump
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Engine Control Unit
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Glow System
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Vacuum Control
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Emission Reduction
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New Features
- Engine
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Abbreviations
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Index
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Quick Links
- 1 Engine Data
- 2 Engine Views
- 3 Crankshaft Assembly
- 4 Engine Cooling
- 5 Engine
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New Generation of 4-Cylinder
Inline Engines, OM 651
Introduction into Service Manual
– This printout will not be recorded by the update service. Status: 09 / 2008 –
Table ofContents
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Table of Contents
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Summary of Contents for Mercedes-Benz OM 651
- Page 1 New Generation of 4-Cylinder Inline Engines, OM 651 Introduction into Service Manual – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 2 Mercedes-Benz Service Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 Daimler AG · Technical Information and Workshop Equipment (GSP/OI) · D-70546 Stuttgart – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 3 Information and copyright Ordering workshop information All printed workshop information from GSP / OI, such as Introduction into Service Manuals, System Descriptions, Function Descriptions, Technology Guides, Tech- nical Data Manuals and adhesive labels, can be ordered as follows: Within Germany Through our GSP / OI Shop on the Internet Link: http: / / gsp-ti-shop.de...
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Page 4: Table Of Contents
Gear drive Belt drive Combustion Common rail injection Charging Air supply Exhaust system Exhaust system Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 5 Vacuum control Environmental protection Emission reduction Service information New features Special tools Engine Abbreviations Index Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 6: Preface
Daimler AG Technical Information and Workshop Equipment (GSP / OI) Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 7: Brief Description
System Description for engine 651. Order number: 6516 1363 02 Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 8: Engine Data
Maximum rpm 4,900 5,200 Engine 646.821 EVO Engine 651.911 Engine speed M Torque Output Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 9: Highlights
System (WIS). without the use of welding consumable. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 10: Engine Views
Engine views Engine 651: Side view from left Engine 651: Side view from right Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 11: System Comparison
Oil pump – drive Simplex chain Gear drive Alternator – current rating Engine weight DIN (dry) approx. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 12: At A Glance
Shutoff-capable coolant pump and shutoff-capable oil spray nozzles Exhaust system with oxidation catalytic converter and diesel particulate filter Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 13: Crankcase
• Universal timing case cover for adaptation to various transmission models Crankcase Crankcase Oil spray nozzle shutoff valve Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 14: Cylinder Head
Main bearing bridge Exhaust valve Valve spring Cylinder head cover Piezo injector Valve clearance compensation Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 15: Oil Pan
This prevents unnecessary warning messages e.g. triggered by cornering. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 16: Crankshaft Assembly
There is therefore no differentiation between A, B or X sizes on this engine. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 17 Exhaust camshaft with sensor wheel Drive gear Exhaust camshaft Sensor wheel with orifice plate Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 18: Valve Assembly
Hydraulic valve clearance compensator Intake camshaft Chain tensioner Exhaust camshaft Timing chain drive gear Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 19: Gear Drive
Oil and vacuum pump drive gear Crankshaft gear Drive sprocket Lanchester drive gears High-pressure pump drive gear Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 20: Belt Drive
8 Guide pulley 3 Guide pulley 6 Belt tensioner with tensioner pulley 9 Major assembly carrier Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 21: Common Rail Injection
• Higher engine output • Minimized combustion noise • Reduced emissions • Smoother engine running Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 22 250 V is applied to the piezo injectors. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 23 Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 24 Fuel filter housing Pressure line Quantity control valve Rail Piezo injector Pressure regulator valve Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 25: Charging
• Low-pressure turbocharger is designed to build up high boost pressure with high gas flow at medium and high engine speeds Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 26 Charging Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 27 13 EGR cooler 3 Boost pressure control flap (LRK) 9 Intake manifold 14 EGR bypass flap Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 28 13 EGR cooler 3 Boost pressure control flap (LRK) 9 Intake manifold 14 EGR bypass flap Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 29 13 EGR cooler 3 Boost pressure control flap (LRK) 9 Intake manifold 14 EGR bypass flap Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 30: Air Supply
Air filter housing Clean air line Throttle valve Charge air cooler Charge air manifold Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 31 Charge air manifold Actuator motor Tangential intake port Adjustment flap Charge air manifold Spiral intake port Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 32 Throttle valve Throttle valve Throttle valve actuator Charge air manifold Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 33: Exhaust System
Exhaust gas recirculation EGR pre-cooler Charge air manifold EGR cooler Exhaust manifold Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 34 EGR path EGR actuator EGR cooler Vacuum unit EGR pipe EGR bypass EGR pre-cooler Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 35: Exhaust System
Nitrogen Oxygen Nitrogen oxide HC Hydrocarbon PM Particulate matter CO Carbon monoxide O Water Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 36 If DPF regeneration is not possible during normal operation, the engine diagnosis warning lamp lights up on the instrument cluster. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 37: Engine Cooling
More detailed information on this can be found in the Workshop Information System (WIS). Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 38 Engine cooling Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 39: Engine Lubrication And Oil Circuit
Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 40 Engine lubrication and oil circuit Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 41: Oil Pump
Cross-section of oil pump Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 42: Coolant Pump
Coolant outlet Regulating valve Power diaphragm Evacuation chamber Rod seal Vacuum fitting Compression spring Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 43: Engine Control Unit
CDI control unit on air filter housing CDI control unit Air filter housing Cooling fins Air filter Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 44: Glow System
CDI control installed. unit. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 45: Vacuum Control
Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 46 Vacuum control Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 47: Emission Reduction
Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 48 The exhaust flow produced by the engine is reduced. Oil pump volume-controlled at clean oil side This reduces the drive resistance. Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 49: New Features
Seal with installation checking pin (arrow) on charge air manifold Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 50 Further information on repairing and maintaining engine 651 can be found in the Workshop Informa- tion System (WIS). Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 51: Engine
Part number W 651 589 04 63 00 FG 05 Set C Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 52 Part number W 651 589 01 91 00 FG 07 Set B Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 53 Use For knocking out fuel injectors. Part number W 651 589 00 33 00 FG 07 Set B Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 54 Use For inserting front radial shaft sealing ring of crankshaft. Part number W 651 589 00 61 00 FG 03 Set B Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
- Page 55 / / gotis.aftersales.mercedes-benz.com Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –...
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Page 56: Abbreviations
Physical Vapor Deposition Euro NCAP European New Car Assessment Program Vibration damper Hydrocarbon Workshop Information System Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... -
Page 57: Index
....13 Cylinder head Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 – This printout will not be recorded by the update service. Status: 09 / 2008 –... - Page 58 ..23 Zero quantity calibration Introduction of New Generation of 4-Cylinder Inline Engines, OM 651 q – This printout will not be recorded by the update service. Status: 09 / 2008 –...
