Mercedes-Benz OM 501 LA BlueTec Operating Instructions Manual
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Mercedes-Benz OM 501 LA BlueTec Operating Instructions Manual

Mercedes-Benz OM 501 LA BlueTec Operating Instructions Manual

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OM 502 LA BlueTec
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Summary of Contents for Mercedes-Benz OM 501 LA BlueTec

  • Page 1 ® OM 501 LA BlueTec /OM 501 LA ® OM 502 LA BlueTec /OM 502 LA Operating Instructions...
  • Page 2 Symbols Warning Environmental note Possible vehicle/equipment dam- Instructions Continuation symbol (Y page) Page reference...
  • Page 3 Welcome to the world of Mercedes-Benz Familiarise yourself with your engine and read the Operating Instructions before you use the engine. This will help you to avoid endanger- ing yourself or others. The standard equipment and product descrip- tion of your engine may vary, depending on individual specifications.
  • Page 5 Contents Index ............4 At a glance ........... 13 Introduction ........... 7 Safety ........... 29 Driving mode/working mode ..... 33 Maintenance and care ......47 Notes on maintenance ....... 59 Decommission and protection ... 79 Breakdown assistance ....... 85 Technical data ........99...
  • Page 6 Index Cooling system Degreasing ........78 Adaptation module ......20 Flushing ........... 77 ® AdBlue /DEF Correct use ..........9 Components ........19 Corrosion inhibitor/antifreeze Consumption ........43 agent ............ 50 Refuelling ......... 44 Cranking device ........65 Replacing the filter ......71 Service product .......
  • Page 7 ..........22 Maintenance Exhaust gas aftertreatment indica- Notes ..........57 tor lamp ..........95 Mercedes-Benz Service Centre see Qualified specialist workshop Modifications and changes ....7 Filling up the pressure reservoir ..72 MR control unit Flame-start system ......26...
  • Page 8 Index Operating restriction override ... 40 Diesel fuel ........51 Operating safety ........7 Disposal ........... 48 Operational monitoring ...... 38 ® Disposing of AdBlue /DEF ....55 Organisational measures ....30 Engine oil ......... 48 Original parts ......... 7 FAME fatty acid methyl ester fuel ..
  • Page 9 Introduction Environmental note Therefore, please follow the engine operating instructions included in the Owner's Manual. Environmental note WARNING Daimler AG has a declared policy of compre- Faulty or incomplete maintenance work, as hensive environmental protection. well as disregarded maintenance intervals, The objective is to use resources sparingly can decrease the engine's operating life, and in a manner that takes natural resources...
  • Page 10 Mercedes-Benz or MTU Service Centre page 11). Always state the engine number with the model designation when ordering genuine Mercedes-Benz parts. You can find the num- bers on the identification plate of your engine...
  • Page 11 DEF in order to meet the emissions laws and The engine may not be modified. If the engine regulations. is modified, Mercedes-Benz and MTU do not accept responsibility for any damage arising The operating permit is invalidated if the vehi- as a result.
  • Page 12 The Operating Instructions contains informa- tion required for installation in the "Technical Data" section" ( page 101). Please consult a Mercedes-Benz or MTU Example display for OM 457 hLA Service Centre ( page 11) if you have any The engine may only be lifted using a beam/ questions.
  • Page 13 Maintenance work does not include repair work. Repair work requires a separate order. You may also consult a Mercedes-Benz or MTU Service Centre for further information. Qualified specialist workshop A qualified specialist workshop has the nec-...
  • Page 15 Exterior view ........14 General information ......20...

  • Page 16: Exterior View

    Exterior view Exterior view Engine overview Engine overview: OM 501 LA Oil filter Fuel filter Engine oil filler neck Engine brake Starter motor Dipstick Refrigerant compressor Poly V-belt tensioning device Coolant pump...
  • Page 17 Exterior view Engine overview: OM 501 LA Exhaust pipe Start/Stop button (example) Charge pressure pipe from the charge-air cooler Charge pressure pipe to the charge-air cooler Alternator Engine control unit (MR) Exhaust manifold Intake housing for air compressor...
  • Page 18 Exterior view Engine overview: OM 502 LA Oil filter Fuel filter Engine oil filler neck Engine brake Starter motor Dipstick Refrigerant compressor Poly V-belt tensioning device Coolant pump...
  • Page 19 Exterior view Engine overview: OM 502 LA Exhaust pipe Start/Stop button (example) Charge pressure pipe from the charge-air cooler Charge pressure pipe to the charge-air cooler Alternator Engine control unit (MR) Exhaust manifold Intake housing for air compressor...
  • Page 20 Exterior view Sensors overview Sensors, general Example: OM501 LA Camshaft position sensor (on camshaft gear) Fuel temperature sensor Charge-air pressure/temperature sensor Coolant temperature sensor Engine oil pressure and temperature sensor Engine oil level sensor Crankshaft position sensor (on flywheel)
  • Page 21 Exterior view ® AdBlue /DEF components ® BlueTec sensors, overview (example: OM 501 LA) sensor Metering unit Exhaust aftertreatment unit Temperature and humidity sensor (air filter, clean air side) ® Valve preheating, AdBlue /DEF system Exhaust gas temperature sensor (inlet) Exhaust gas temperature sensor (outlet) Exhaust gas aftertreatment control unit Supply unit...

  • Page 22: General Information

    General information ® Example: BlueTec sensors Metering unit test connection Metering unit heater Pressure sensor for compressed air ® AdBlue /DEF temperature sensor ® AdBlue /DEF pressure sensor pumps sit directly in the crankcase and are General information driven by the camshaft. Description of the engine The engine is equipped with exhaust gas tur- bocharger and intercooler as standard.
  • Page 23 General information adaptation module (ADM). These are, for Electronic engine control unit example, the signal from the position sensor The engine has a fully electronic management (accelerator pedal), the engine brake or system which, along with the engine and its engine start/stop, etc.
  • Page 24 General information The drive control (FR) unit or the adaptation module (ADM) receives data from: user (signal from the position sensor, engine Start/Stop) engine brake switch other systems (e.g. acceleration skid con- trol) engine management (MR) control unit (e.g. oil pressure and coolant temperature) Values for the engine management (MR) con- trol unit are derived from this and transferred via the CAN line.
  • Page 25 ® a malfunction with the BlueTec exhaust gas aftertreatment system, have it checked and repaired at a qualified specialist workshop. Mercedes-Benz recommends that you use a Mercedes-Benz or MTU Service Centre for this purpose. ® BlueTec technology is one part of the engine homologation that requires certification.
  • Page 26 General information ® BlueTec exhaust gas aftertreatment indicator and warning lamps Engine, general Reason for display/displayed message Symbol Malfunction Impermissible operating conditions lamp Text in the engine symbol: "CHECK" Stop lamp Severe fault Text in the engine symbol: "STOP" Malfunction in Lights up in the event of an electronic engine con- the electronic trol unit malfunction.
  • Page 27 General information ® BlueTec exhaust gas aftertreatment, off-highway version The following indicator lamps could be available on the instrument panel: Reason for display/displayed message Symbol ® Fault message/action required (warning þ AdBlue /DEF level before reduction in operating performance) Check engine/exhaust gas Fault and misuse (failure in the monitoring aftertreatment system)
  • Page 28 General information (third stroke), whilst the compression (sec- ond stroke) is not significantly affected. The constant throttle valve is an additional valve in the cylinder head. When open, the constant throttle valve establishes a connec- tion between the combustion chamber and exhaust port.
  • Page 29 General information The flame-start system is only operational if the engine is started within 30 seconds after the flame-start system indicator lamp has gone out. If the flame-start system indicator lamp does not go out after more than 20 seconds, then there is a malfunction in the flame-start sys- tem.
  • Page 31 Safety precautions ......30 Staff qualifications ......30 Organisational measures ....30...

  • Page 32: Organisational Measures

    Only use the appropriate testing probes When doing so, put special emphasis on when taking measurements from electri- safety-relevant information. This is particu- cal connectors (e.g. a Mercedes-Benz larly important for personnel that only work connection set). Telephones and two- occasionally on the engine.
  • Page 33 Organisational measures Always keep the Operating Instructions and the Maintenance Booklet readily accessible, in the area of engine operation. In addition to the Operating Instructions, other general, country-specific, legal and other binding regulations on accident preven- tion and environmental protection must be adhered to.

  • Page 35: Table Of Contents

    Operation ..........34 Continuous brake ........ 41 Driving tips .......... 42 Refuelling ..........43 Winter operation ......... 45...

  • Page 36: Operation

    Sheet Num- possible with the engine switched off and the ber 225.6 of the Mercedes-Benz Specifica- ignition switched on. tions for Service Products. Park the vehicle/equipment on a horizontal These high-quality engine oils are beneficial surface.
  • Page 37 Operation ® Refuelling with AdBlue /DEF ® Only use AdBlue /DEF that complies with DIN 70070/ISO 22241. Do not use any addi- ® tives. If AdBlue /DEF comes into contact with painted or aluminium surfaces, rinse the affected surfaces immediately with plenty of water.
  • Page 38 Operation Check the engine for leaks. the coolant expansion tank are pressurised Check all hose fittings, hose clamps and when the engine is at normal operating tem- pipe connections on the engine, as well as perature. Wear gloves and eye protection. the oil feed and return on the exhaust gas Only open the coolant expansion tank when turbocharger, for leaks and correct seating.
  • Page 39 Operation Wait approximately 1 minute each time before repeating the starting procedure. After three starting attempts, wait approx- imately three minutes each time before try- ing again. Observe the oil pressure gauge immedi- ately after having started the engine. Starting and stopping the engine with the Start/Stop button Switch on the ignition.
  • Page 40 Operation speed. The engine speed can be increased Operational monitoring up to the limiting speed. Charge current To stop the engine: press Start/Stop but- ton : again. The charge current indicator lamp must go The engine switches off. out after the engine has started. Engine with two buttons Example: charge current indicator lamp If the # indicator lamp does not go out, or...
  • Page 41 Operation Requirements for vehicles The engine output can be automatically reduced the first time the vehicle is stationary ® the AdBlue /DEF reservoir is empty the permitted thresholds for nitric oxide (NOx) emissions are exceeded Torque reduction ® If the AdBlue /DEF is used up or if there is a fault, the indicator lamp in the instrument Example: electronics warning lamp...
  • Page 42 Operation Torque/time diagrams Major operating restriction The transition between a minor and a major ® AdBlue /DEF level low operating restriction is achieved by a gradual reduction in engine speed and torque. The engine torque is linearly reduced to 20% of the nominal value. At the same time, the engine speed is slowly reduced to 1000 rpm.

  • Page 43: Continuous Brake

    Continuous brake Recurring fault To switch off the engine: turn the vehicle key in the ignition lock back to the stop at position u. Press the Start/Stop button on the engine or on the engine shutoff device on the equipment. Secure the vehicle/equipment against roll- ing away.

  • Page 44: Driving Tips

    Driving tips After 2000 km (30 operating hours), you can WARNING gradually bring the vehicle up to full road and Do not activate the continuous brake (engine increased engine speeds. brake/retarder) on slippery road surfaces. The wheels may otherwise become locked and the vehicle could skid.

  • Page 45: Refuelling

    Refuelling ® AdBlue consumption change out of clothing which has come into contact with fuel immediately. ® AdBlue /DEF consumption is between 4 and if fuel is swallowed, a doctor should be con- 8% of the fuel consumption, depending on sulted immediately.
  • Page 46 Refuelling Before filling the tank Change clothing that is soiled with ® AdBlue /DEF immediately. Switch off the engine. If allergic reactions occur, consult a doctor Secure the vehicle/equipment against roll- immediately. ing away. ® Keep AdBlue /DEF out of the reach of chil- Switch off the auxiliary heating system.

  • Page 47: Winter Operation

    Winter operation using the integrated hand pump WARNING page 86). Coolant contains glycol and is therefore toxic. Do not swallow the coolant. See a doctor immediately if you swallow coolant. Winter operation Make sure that coolant does not come into Cold-start aids contact with skin, eyes or clothing.
  • Page 48 Winter operation Keep children away. Observe this Owner's Man- ual. Always aim to achieve the full charge status. You can do this by means of careful mainte- nance and low electrical consumption. The cold start capacity is reduced when it is very cold.
  • Page 49 Service products ......... 48 Cleaning and care ....... 56 Maintenance ........57...

  • Page 50: Service Products

    Do not inhale the vapours. When indoors, You can recognise service products approved always ensure there is sufficient ventilation by Mercedes-Benz by the following inscrip- to prevent intoxication. tion on the container: Do not let service products come into con- MB Approval (e.g.
  • Page 51 (viscosity) classification for certain tempera- engine oils that comply with Sheet No. 228.5 ture ranges. Change the engine oil to an SAE or Sheet no 228.51 of the Mercedes-Benz class suitable for the time of year and the Specification for Service Products.
  • Page 52 You can only achieve the maximum oil change intervals by using engine oils of particularly high quality (e.g. in accordance Coolant with Sheet No. 228.5 of the Mercedes-Benz Specifications for Service Products). Coolant additive with antifreeze prop- erties Environmental note...
  • Page 53 Further information about operating and road that is 50 % by volume. safety for your engine/vehicle/equipment is Before topping up, check the quality of the available from any Mercedes-Benz or MTU antifreeze/corrosion inhibitor (Sheet. No.) in Service Centre ( page 11).
  • Page 54 Information about current country-specific EN 590 describes a sulphur-free fuel with a fuel sulphur contents can be obtained from maximum sulphur content of 10 ppm. How- any Mercedes-Benz or MTU Service Centre ever, it is also permitted to operate engines page 11). ®...
  • Page 55 The cold flow properties of the fuel may dete- available at any qualified specialist work- riorate as a consequence of the flow shop, e.g. a Mercedes-Benz or MTU improver. Service Centre. If summer diesel fuel or winter diesel fuel with...
  • Page 56 Allow the engine to run for at least Observe the specifications in accordance one hour before switching off the vehi- with Sheet no. 135.0 of the Mercedes-Benz cle/equipment. Specifications for Service Products for oper- ation with FAME fatty acid methyl ester fuel.
  • Page 57 Service products High outside temperatures ® of BlueTec exhaust gas aftertreatment. The ® AdBlue /DEF crystals can be removed with WARNING clean water if necessary. ® If the AdBlue /DEF tank cap is opened at high temperatures, ammonia vapours may escape. Additives, tap water Ammonia vapours have a pungent odour and ®...

  • Page 58: Cleaning And Care

    Mercedes-Benz recommends that you only use care products that have been approved Make sure that no water enters the air for Mercedes-Benz. You can obtain these intake and ventilation openings. care products from any Mercedes-Benz or Treat the engine with preservative MTU Service Centre ( page 11).

  • Page 59: Maintenance

    Maintenance All maintenance work and maintenance Maintenance intervals refer to genuine Mercedes-Benz Introduction parts and accessories that have been expressly approved for the engine by WARNING Mercedes Benz. Before carrying out maintenance or repair The scope of maintenance and frequency of...
  • Page 61 Work schedule overview ....60 Work schedules ........62...

  • Page 62: Work Schedule Overview

    Adjustment subject to a separate invoice. In the event of fluid loss, find the cause and remedy it. For further information, see the vehicle manufacturer's instructions. Engine AP13.22-G-1351DD Check poly-V-belt for wear and damage. • • Work item number of the Mercedes-Benz workshop information system (WIS).
  • Page 63 Work schedule overview Additional maintenance work every second maintenance service (Z2) AP05.30-G-0560DD Check V2 valve clearance, adjust (first maintenance service, • • 3rd, 5th, 7th etc.). • ® AP14.40-G-1481DD Replace AdBlue /DEF filter. Additional work every third maintenance service (Z3) AP47.20-G-0730DD Fuel prefilter: clean the filter element.

  • Page 64: Work Schedules

    Work schedules AP09.00-W-0953A Intake pipe between air filter, charge-air cooler and engine: • • check for leaks and condition. AP20.20-W-T052A All reservoirs, covers, bellows, protective caps. • • AP20.00-W-2050A Heating system: condition check, radiator, lines and hoses. • • Every three years (J3) Engine AP20.00-W-2080A Renew coolant, according to Sheet Number of the antifreeze/ •...
  • Page 65 Work schedules Example: OM 501 LA ! Make sure that no foreign objects enter Filler neck the filter housing. Never wipe the filter Dipstick housing out because lint or dirt can enter the oil circuit. To siphon off engine oil: pull out dip- Unscrew oil filter cap : using a socket stick ;.
  • Page 66 Work schedules Adding engine oil Example: drain plug To drain off engine oil: place a suitable Example: OM 501 LA collecting receptacle under drain plug : Filler neck on the underside of the oil pan. Dipstick Carefully unscrew drain plug : and allow Add the new engine oil at filler neck :.
  • Page 67 Work schedules Valve clearance Checking and adjusting valve clearan- Inlet valves 0.40 mm Layout of cylinders and valves Exhaust valve 0.60 mm Test tolerance +/- 0.05 mm The tolerance is only applicable for checking, not as a valve clearance setting. Adjust the valve clearance when the engine is cold (at least 30 minutes after stopping the engine, even if it has only been operated for...
  • Page 68 Work schedules Removing and fitting the cylinder head Valve clearance setting covers Valve clearance setting OM 501 LA (6 cyl.) Crankshaft Cylinder/valves to be position adjusted Cylinder no. 5, valve overlap Cylinder no. 1, valve overlap Example: mounting of the cylinder head covers If excessively dirty, clean the cylinder head Valve clearance setting OM 502 LA (8 cyl.) covers before removal.
  • Page 69 Work schedules Checking and adjusting the valve clear- After fitting, run the engine and check the ance cylinder head cover area for leaks. Check the poly-V-belt for wear and damage WARNING Faulty poly-V-belts can tear, the belt or parts of it could then be thrown off the engine, thereby causing injury to others.
  • Page 70 Work schedules Patterns of damage ! Replace the poly-V-belts if one of the fol- lowing damage patterns occurs on the poly- V-belt. Rib detached from the base of the belt New condition (for comparison; trapezoi- dal ribs) Single-sided wear: wedge-shaped ribs Cord visible at the base of the belt Cord torn out of the side Outer cord frayed...
  • Page 71 Work schedules Fuel return line to the fuel tank Vehicle with fuel prefilter at tank level: Fuel feed line from the fuel tank close shutoff valve ?. Place a collector under water drain valve Fuel prefilter with water separator: Open water drain valve E and bleed screw replacing the fuel filter =.
  • Page 72 Work schedules Start the engine and bleed the fuel system. Clean the outside of the filter housing. Run the engine for approximately 1 minute. Open the fuel filler cap to prevent excess The fuel system is self-bleeding. pressure in the fuel tank. If the engine stalls or does not start, bleed Unscrew fuel filter cap : using a socket the fuel system manually (...
  • Page 73 Work schedules If the engine stalls or does not start, bleed ® is a risk of scalding due to hot AdBlue /DEF the fuel system manually. spraying out. Check the fuel filter for leaks with the Wait at least 5 minutes after switching off engine running.
  • Page 74 Work schedules Clamp the feed and return lines on the washed into the sewage system without pump/filter unit using hose clamps. any problems. Place a suitable receptacle under the ® Larger amounts of AdBlue /DEF must be ® pump/filter unit to collect any AdBlue disposed of correctly, observing the regu- DEF fluid that escapes.
  • Page 75 Work schedules To check the pressure: unscrew the dust WARNING protection cap from the valve of pressure ® AdBlue /DEF must not come into contact reservoir :. with skin, eyes or clothing. Screw filling hose = onto the valve of the ®...
  • Page 76 Work schedules Lubricate the ball socket with heat-resist- Engine brake - checking condition and ant lubricant (part number A000 989 76 setting 51). Press the ball socket back onto the ball coupling, fit the wire circlip. When the engine brake is applied, throttle valve lever ;...
  • Page 77 Work schedules Cooling and heating system – condi- diately. Change any affected clothing imme- tion check of radiator, lines and hoses diately. Only check the coolant level when the coolant temperature is under 50 †. Check the anti- freeze/corrosion inhibitor concentration before correcting the coolant level.
  • Page 78 Work schedules drop in pressure, indicated by the manom- tion. Have the coolant renewal confirmed in eter on tester :. the Maintenance Booklet. If there is a loss of pressure in the cooling Draining the coolant system leading to visible loss of coolant, have the leak in the cooling or heating sys- Environmental note tem repaired.
  • Page 79 Work schedules If there are additional coolant drain plugs Only open the cooling system at coolant in the system, open these as well and com- temperatures below 90 †. pletely drain the system. Unscrew the cap slowly and release any Clear blocked drainage openings of depos- excess pressure completely before open- its.
  • Page 80 Before starting any work on the engine, allow with a suitable cleaning agent. Information all engine parts to cool down, or wear suitable is available from any Mercedes-Benz or gloves and items of clothing to protect your- MTU Service Centre ( page 11).
  • Page 81 Decommissioning the engine .... 80 Protecting the engine ......81...
  • Page 82 Decommissioning the engine ® Top up the AdBlue /DEF tank until it is full, Decommissioning the engine ® to prevent AdBlue /DEF from crystallising. Particular measures are necessary when the Fuel prefilter with heated water separator: engine/vehicle/equipment is to be decom- drain off the water separator.
  • Page 83 Protecting the engine Fuel prefilter with heated water separator: Check that the electrical system, steering drain off the water separator. system and brakes are functioning cor- rectly. Recharge the batteries every three months. Check the battery fluid levels before and Clean the engine/vehicle/equipment thor- after charging.
  • Page 84 Protecting the engine Close off all openings on the engine (e.g. Detach the charge-air distributor from the on the charge-air distributor, exhaust etc.) cylinder heads. with an oil-soaked rag. Briefly press the start button on the engine. Drain off the coolant completely for At the same time, pour approximately engines that have been removed.
  • Page 85 Protecting the engine The following work is required for engines New engines: add initial operation oil com- that have already been in operation (distance pliant with Sheet No. 225.6. of over 300 km or running time of over 6 For engines that have already been in oper- operating hours): ation (distance over 300 km or running time of over 6 operating hours): before starting...
  • Page 87 General notes ........86 Bleeding the fuel system ....86 Activating engine emergency run- ning mode ..........87 Troubleshooting ........89 ® BlueTec exhaust gas aftertreat- ment indicator (on-highway ver- sion) ............. 94 ® BlueTec exhaust gas aftertreat- ment indicator lamp (off-highway version) ..........

  • Page 88: General Notes

    Bleeding the fuel system General notes Fuel system with fuel prefilter Fuel prefilter overview WARNING If maintenance and repair work is carried out on the engine incorrectly, this can cause engine failure. Engine failure can lead to an increased risk of accidents. Maintenance and repair work on the engine may only be carried out by personnel who have undergone the appropriate training.

  • Page 89: Activating Engine Emergency Running Mode

    The fault memory and engine data can be read out using this Activating engine emergency running diagnostic equipment. Information is avail- mode able from any Mercedes-Benz or MTU Emergency mode for on-highway Service Centre ( page 11). applications...
  • Page 90 Activating engine emergency running mode Emergency mode for off-highway applications Full engine output can be activated with an emergency switch for devices with Euromot 3B or Tier 4i certified engines (off-highway applications). Emergency mode can only be activated for 30 minutes, and only if the vehi- cle has the appropriate equipment.

  • Page 91: Troubleshooting

    Troubleshooting Troubleshooting Engine problems WARNING The operating safety of your vehicle could be affected if maintenance work is carried out incor- rectly. You could lose control of the vehicle and cause an accident. The safety systems may also no longer be able to protect you or others as they are designed to do. Always have maintenance work carried out at a qualified specialist workshop.
  • Page 92 Troubleshooting Problem Possible causes/consequences and M Solutions The engine oil viscosity is incorrect. Alter the engine oil viscosity to the conditions of use page 49). The engine does not There is a malfunction in the engine control unit. start correctly. Read out the MR (engine control) unit;...
  • Page 93 Troubleshooting Problem Possible causes/consequences and M Solutions The coolant temperature is too high. Check the temperature sensor; replace if necessary. Check the fan speed. The thermostat is malfunctioning: consult a qualified specialist workshop. Malfunction in the fuel system (blocked, leaking). Visual inspection for leaks Consult a qualified specialist workshop.
  • Page 94 Troubleshooting Problem Possible causes/consequences and M Solutions Fuel consumption is Connection points (unit pump – line and fuel injectors) are leaking. too high. Have a qualified specialist workshop check for leaks. Misfiring: have the engine checked at a qualified specialist workshop.
  • Page 95 Troubleshooting Problem Possible causes/consequences and M Solutions The engine emits black The air filter is heavily contaminated. smoke. Replace the air filter element. The engine brake is faulty. Consult a qualified specialist workshop. The exhaust gas turbocharger is faulty. Carry out a visual check. Consult a qualified specialist workshop.

  • Page 96: Bluetec ® Exhaust Gas Aftertreat- Ment Indicator (On-Highway Ver- Sion)

    ® BlueTec exhaust gas aftertreatment indicator (on-highway version) ® BlueTec exhaust gas aftertreatment indicator (on-highway version) WARNING The operating safety of your vehicle could be affected if maintenance work is carried out incor- rectly. You could lose control of the vehicle and cause an accident. The safety systems may also no longer be able to protect you or others as they are designed to do.

  • Page 97: Bluetec ® Exhaust Gas Aftertreatment Indicator Lamp (Off-Highway Version)

    Replacing the poly-V-belt ® BlueTec exhaust gas aftertreatment indicator lamp (off-highway version) System messages Problem System message ® ® AdBlue /DEF level low The å AdBlue /DEF indicator lamp lights up. ® AdBlue /DEF quality not OK ® ® AdBlue /DEF level too low, no sup- The å...
  • Page 98 Replacing the poly-V-belt risk of injury from crushing or entrapment in pretensioned parts. Always carry out work on the tensioning device with extreme care. Make sure that the tool is handled cor- rectly. Belt profiles Engine with refrigerant compressor Coolant pump Poly-V-belt Crankshaft Refrigerant compressor...
  • Page 99 Replacing the poly-V-belt Crankshaft Fitting/removing poly-V-belts Tensioning pulley for poly-V-belt, alterna- Alternator Example: releasing the poly-V-belt Insert the 15 mm socket, with the handle and extension attached, into the tensioner. Engine with high-speed fan drive and refrigerant Swing the tensioning pulley up and remove compressor the poly-V-belt.
  • Page 101 Engine data plate ......100 Information on the engine data plate ........... 100 Engine model designation ....101 Engine data card ....... 101 Engine data ........101...

  • Page 102: Information On The Engine Data Plate

    Information on the engine data plate engine, if parts have been replaced. If con- Engine data plate tradictory information is stated on the engine data plates, the engine data plate fitted on the The engine data plate is located on the left- flywheel-side of the engine is always the bind- hand side of the engine underneath the ing one.

  • Page 103: Engine Data

    Example: engine model designation Conversion parts on the engine which change the scope of the engine delivered by Mercedes-Benz must be recorded on the data card. Oil engine (die- In order to prevent incorrect ordering of...
  • Page 104 Engine data Example: engine width and height OM 501 LA OM 502 LA A = engine 1190 mm 1390 mm length B = engine 1020 mm 1030 mm width C = engine 1130 mm 1190 mm height Weights OM 501 LA OM 502 LA Dry engine 885 kg 1125 kg...
  • Page 105 Engine data General data All data refers to the standard version of the respective engine type. Data for other versions is available on request. Engine Engine type OM 501 LA OM502 LA Assembly model series 541.9/941.9 542.9/942.9 Type Turbocharged V engine with intercooler Combustion principle 4-stroke direct injection diesel Number of cylinders...
  • Page 106 Engine data Idling speed Approximately 500 to Approximately 500 to 550 rpm 550 rpm Engine brake permissible up to 2300 rpm 2300 rpm Engine speed limiter (emergency 1300 rpm 1300 rpm running mode) Oil pres- At idling speed Minimum 0.5 bar Minimum 0.5 bar sure At nominal engine...
  • Page 107 Engine data Capacity Service product approx- (Sheet No. imately Corrosion inhib- OM 501 LA 8.25 l itor/antifreeze OM 502 LA 10 l agent volume down to –37 °C Corrosion inhib- OM 501 LA 9.1 l itor/antifreeze OM 502 LA 11 l volume down to –45 °C Coolant additive...
  • Page 108 Engine data Oil filter cap on the oil filter housing 40 Nm Cooling system Coolant drain screw On the crankcase 60 Nm On the radiator 2 Nm Exhaust gas 32 Nm ® Filter bowl on the AdBlue /DEF pump module aftertreatment Oil level output values Output...
  • Page 111 Imprint Internet Further information about Mercedes-Benz engines, Daimler AG and Tognum AG can be found on the Internet at: www.mercedes-benz.com www.daimler.com www.mtu-online.com Documentation team Should you have any questions or sugges- tions regarding this manual, you can reach the technical documentation team at the fol-...
  • Page 112 É54158448816ËÍ 5415844881 Order no. 6462 9828 02 Part no. 541 584 48 81 Edition B 08-12...

This manual is also suitable for:

Om 502 la bluetecOm 501 laOm 502 la

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