Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 3000 hr | |||
| Fuel filter | Replace every 2 years at the latest; maintenance depends on fuel quality (purity) | — | 500 hr | ||
| Oil filter | — | ||||
| Battery | Maintenance depends on load and ambient conditions of the batteries; specifications of the battery manufacturer are binding | — | |||
| Belt | — | 3000 hr | |||
| Coolant | 110.0 L | — | |||
| Oil | 77.0 L | — | 250 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service intervals
11| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine oil | Change | 250 hr | Application group 3B TAL | |
| Coolant cooler | Check | 1000 hr | 12 mo | Check cooler elements for external contamination |
| Fuel filter | Replace | 500 hr | 24 mo | Replace fuel filter or fuel filter element |
| Valve clearance | Check | 1000 hr | Application group 3D and 3B | |
| Air filter | Replace | 3000 hr | 36 mo | |
| Belt drive | Check | 3000 hr | 24 mo | Battery-charging generator drive and ventilator drive; replace if necessary |
| Combustion chambers | Inspect | 3000 hr | 48 mo | Perform endoscopic examination |
| Fuel injectors | Replace | 3000 hr | ||
| Fuel injection pumps | Replace | 6000 hr | ||
| Engine oil filter | Replace | 24 mo | Replace when changing the oil or when interval/years is reached, at the latest | |
| Fuel prefilter | Replace | 24 mo | Filter elements must be replaced every 2 years at the latest |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
60| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | Belt tension, battery-charging generator drive, new drive belt | 450 -50 | N | |
| Other | Belt tension, battery-charging generator drive, used drive belt | 350 -50 | N | |
| Other | Belt tension, ventilator drive 12/16V, new V-belt | 660 | N | |
| Other | Belt tension, ventilator drive 12/16V, used V-belt | 510 | N | |
| Other | Belt tension, ventilator drive 18V, new drive belt | 670 -50 | N | |
| Other | Belt tension, ventilator drive 18V, used drive belt | 570 -50 | N | |
| Other | Combustion air volume flow | 1.0 | m³/s | MTU application group 3D (ICFN); 1.0 for 3B (ICXN), 0.8 for 3A (ICXN) |
| Other | Coolant antifreeze content, max. permissible | 50 | % | |
| Other | Coolant antifreeze content, max. permissible (engine coolant circuit) | 50 | % | |
| Other | Cooling equipment: coolant flow rate | 58 | m3/h | Engine coolant circuit |
| Other | Cooling equipment: height above engine max. permissible | 15.2 | m | |
| Other | Cooling pump relief bore permissible coolant discharge (coolant) | up to 10 | drops/hour | |
| Other | Cooling pump relief bore permissible oil discharge | up to 5 | drops/hour | |
| Other | Engine mount setting dimension (a) | 55 | mm | |
| Other | Exhaust volume flow | 2.8 | m³/s | MTU application group 3D (ICFN); 2.6 for 3B (ICXN), 2.1 for 3A (ICXN) |
| Other | Heater performance | 3 | kW | Coolant pre-heating |
| Other | Recommended minimum continuous load | 20 | % | |
| Pressure | Charge air pressure before cylinder (Standby 3D, air-cooled, opt. fuel cons.) | 2.7 / 2.9 / 2.7 / 3.0 / 3.0 | bar ABS | FSP |
| Pressure | Coolant pump: inlet pressure, max. | 1.52 | bar | |
| Pressure | Coolant pump: inlet pressure, min. | 0.4 | bar | |
| Pressure | Cooling equipment: design pressure | 2.2 | bar | Engine coolant circuit |
| Pressure | Exhaust backpressure limit value | 100 | mbar | |
| Pressure | Final compression pressure | 30 to 36 | bar | at 120 rpm |
| Pressure | Fuel prefilter differential pressure, flush filter element | >= 0.3 | bar | engine running at full load or rated power |
| Pressure | Fuel pressure at supply connection on engine, max. admissible | +0.5 | bar | |
| Pressure | Fuel pressure at supply connection on engine, min. admissible | -0.3 | bar | |
| Pressure | Fuel pressure at supply connection to engine (starting), max. admissible | +0.5 | bar | when engine is starting |
| Pressure | Fuel pressure at supply connection to engine (starting), min. admissible | -0.3 | bar | when engine is starting |
| Pressure | Intake air depression, limit value | 50 | mbar | |
| Pressure | Intake air depression, new filter | 30 | mbar | |
| Pressure | Pressure loss in off-engine cooling system, max. permissible | 0.7 | bar | |
| Pressure | Pressure loss in the external cooling system, max. permissible | 0.7 | bar | |
| Speed | Engine rated speed (Standby 3D, air-cooled, opt. fuel cons.) | 1500 | rpm | |
| Speed | Firing speed | 100 - 120 | 1/min | |
| Speed | Firing speed range | 100 to 120 | rpm | |
| Temperature | Coolant preheating temperature (min.) | 32 | °C | |
| Temperature | Coolant temperature (at engine outlet to cooling equipment) | 95 | °C | |
| Temperature | Coolant temperature after engine, alarm | 97 | °C | |
| Temperature | Coolant temperature after engine, shutdown | 102 | °C | |
| Temperature | Coolant temperature at engine outlet to cooling equipment | 95 | °C | |
| Temperature | Coolant temperature before intercooler (engine inlet) | 55 | °C | |
| Temperature | Exhaust temperature after turbocharger | 600 | °C | |
| Temperature | Exhaust temperature after turbocharger | 605 | °C | MTU application group 3D (ICFN); 585 for 3B (ICXN), 575 for 3A (ICXN) |
| Temperature | Fuel temperature, max. | 55 | °C | |
| Temperature | Lube oil operating temp. before engine, to | 98 | °C | |
| Temperature | Lube oil operating temperature before engine, from | 88 | °C | |
| Temperature | Lube oil temperature before engine, alarm | 103 | °C | |
| Temperature | Preheating temperature (min.) | 32 | °C | |
| Torque | Battery-charging generator drive securing screw (2) | 40 +/- 4 | Nm | |
| Torque | Crankcase breather cover screws | 6 +/- 2 | Nm | |
| Torque | Cylinder-head cover screws | 20 | Nm | |
| Torque | Fuel line locknuts | 20 +/- 5 | Nm | |
| Torque | Injection pump | 60 +/- 12 | Nm | |
| Torque | Injection pump wiring screws | 1.0 +/- 0.2 | Nm | |
| Torque | Injector clamp screw | 50 | Nm | |
| Torque | Injector thrust screw | 40 +/- 5 | Nm | |
| Torque | Union nut on injection pump | 30 +/- 5 | Nm | |
| Torque | Union nut on pressure pipe neck | 20 +/- 5 | Nm | |
| Torque | Valve clearance adjusting screw locknut | 50 | Nm | |
| Torque | Ventilator drive securing screws (12/16V engines) | 100 | Nm |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | MTU Fluids and Lubricants Specification (A001061/..) | Coolant antifreeze content max. permissible 50%. Coolant capacity varies by model. | |||
| Engine oil | MTU Fluids and Lubricants Specification (A001061/..) | Use only fluids and lubricants which comply with the MTU Fluids and Lubricants Specification. Engine oil capacity varies by model. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
80| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 005 | L1 T-CHARGE AIR | Charge-air temperature too high (1st limit) | Warning | Reduce power. |
| 006 | L2 T-CHARGE AIR | Charge-air temperature too high (2nd limit) | Warning | Reduce power. |
| 009 | L1 T-INTERCOOLER | Charge-air coolant temperature too high (1st limit) | Warning | Reduce power. |
| 015 | L1 P-LUBE OIL | Lube-oil pressure too low (1st limit) | Warning | Check engine-oil level and top up if required. |
| 016 | L2 P-LUBE OIL | Lube-oil pressure too low (2nd limit); automatic engine shutdown | Shutdown | Check engine-oil level and top up; try to re-start; contact Service. |
| 023 | L1 COOLANT LEVEL | Engine coolant level too low | Warning | Check coolant level and top up if required. |
| 024 | L2 COOLANT LEVEL | Engine coolant level too low | Warning | Check coolant level and top up if required. |
| 030 | ENGINE OVERSPEED | Engine overspeed; automatic engine shutdown | Shutdown | Acknowledge alarm; try to re-start; contact Service. |
| 044 | L1 LEVEL INTERCOOLER | Charge-air coolant level too low (1st limit) | Warning | Check coolant level and top up if required. |
| 045 | L2 LEVEL INTERCOOLER | Charge-air coolant level too low (2nd limit) | Warning | Check coolant level and top up; if fault occurs repeatedly contact Service. |
| 051 | L1 T-LUBE OIL | Lube-oil temperature too high (1st limit) | Warning | Reduce power. |
| 052 | L2 T-LUBE OIL | Lube-oil temperature too high (2nd limit) | Warning | Reduce power; if fault occurs repeatedly contact Service. |
| 065 | L1 P-FUEL | Fuel supply pressure too low (1st limit) | Warning | Check fuel lines for leaks; clean/flush fuel prefilter; replace filter element; if not rectified contact Service. |
| 066 | L2 P-FUEL | Fuel supply pressure too low (2nd limit) | Warning | Check fuel lines for leaks; clean/flush fuel prefilter; replace filter element; if not rectified contact Service. |
| 067 | L1 T-COOLANT | Coolant temperature too high (1st limit); warning | Warning | Reduce power. |
| 068 | L2 T-COOLANT | Coolant temperature too high (2nd limit); automatic engine shutdown | Shutdown | Allow engine to cool down; check coolant cooler and clean contaminated parts; re-start; if repeated contact Service. |
| 069 | L1 T-EXTERN 1 | Violation of first limit for external temperature channel 1 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 070 | L2 T-EXTERN 1 | Violation of second limit for external temperature channel 1 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 071 | L1 T-EXTERN 2 | Violation of first limit for external temperature channel 2 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 072 | L2 T-EXTERN 2 | Violation of second limit for external temperature channel 2 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 073 | L1 P-EXTERN 1 | Violation of first limit for external pressure channel 1 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 074 | L2 P-EXTERN 1 | Violation of second limit for external pressure channel 1 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 075 | L1 P-EXTERN 2 | Violation of first limit for external pressure channel 2 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 076 | L2 P-EXTERN 2 | Violation of second limit for external pressure channel 2 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 077 | LIM EXT.COOLANT LEV. | Alarm from external coolant level monitoring | Warning | Depending on corresponding measuring point read via CAN bus. |
| 078 | LIM INTERCOOLER LEV. | Alarm from external charge-air coolant level monitoring | Warning | Depending on corresponding measuring point read via CAN bus. |
| 079 | L BIN-EXTERN 3 | Alarm from external binary channel 3 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 080 | L BIN-EXTERN 4 | Alarm from external binary channel 4 | Warning | Depending on corresponding measuring point read via CAN bus. |
| 082 | RAIL PRESSURE HIGH | Pressure in HP fuel system exceeds specified value; solenoid valve of HP fuel control block jamming or wiring defective | Warning | Contact Service. |
| 083 | RAIL PRESSURE LOW | Pressure in HP fuel system lower than specified value; HP fuel control block defective or system leaking | Warning | Contact Service. |
| 084 | RAIL LEAKAGE | HP fuel system leaking, system contains air | Warning | Contact Service. |
| 089 | ENGINE SPEED LOW | Engine speed lower than 200 rpm; automatic engine shutdown | Shutdown | Re-start the engine. |
| 090 | IDLE SPEED LOW | Idle speed not reached within a specified period; termination of starting procedure | Warning | Note further alarms. |
| 091 | RUN UP SPEED LOW | Run-up speed not reached within a specified period; termination of starting procedure | Warning | Note further alarms. |
| 092 | START SPEED LOW | Starter speed not reached within a specified period; termination of starting procedure | Warning | Note further alarms. |
| 093 | PREHEAT TEMP. LIMIT2 | Coolant preheating temperature too low during starting (2nd limit); termination of starting procedure | Warning | Check preheating pump / preheating system. |
| 094 | PREHEAT TEMP. LIMIT1 | Coolant preheating temperature too low during starting (1st limit) | Warning | Check preheating pump / preheating system. |
| 100 | EDM NOT VALID | Check sum error of measuring-point data in EDM | Warning | If fault occurs repeatedly: contact Service. |
| 101 | IDM NOT VALID | Check sum error of measuring-point data in IDM | Warning | If fault occurs repeatedly: contact Service. |
| 102 | INVALID FUEL CONS. 1 | Check sum error of accumulated fuel consumption data in EDM (redundant data record 1) | Warning | If fault occurs repeatedly: contact Service. |
| 103 | INVALID FUEL CONS. 2 | Check sum error of accumulated fuel consumption data in EDM (redundant data record 2) | Warning | If fault occurs repeatedly: contact Service. |
| 104 | OP HOURS NOT VALID | Check sum error of hour meter data in EDM | Warning | If fault occurs repeatedly: contact Service. |
| 106 | ERR REC1 NOT VALID | Check sum error of fault memory in EDM (redundant data record 1) | Warning | If fault occurs repeatedly: contact Service. |
| 107 | ERR REC2 NOT VALID | Check sum error of fault memory in EDM (redundant data record 2) | Warning | If fault occurs repeatedly: contact Service. |
| 118 | L1 SUPPLY VOLT. LOW | Supply voltage too low (1st limit) | Warning | Check ECU supply voltage. |
| 119 | L2 SUPPLY VOLT. LOW | Supply voltage too low (2nd limit) | Warning | Check ECU supply voltage. |
| 120 | L1 SUPPLY VOLT. HIGH | Supply voltage too high (1st limit) | Warning | Check ECU supply voltage. |
| 121 | L2 SUPPLY VOLT. HIGH | Supply voltage too high (2nd limit); automatic engine shutdown | Shutdown | Check ECU supply voltage; if engine was stopped start engine. |
| 122 | L1 T-ELECTRONIC | Temperature in ECU housing too high (1st limit) | Warning | Improve engine room ventilation; reduce engine power. |
| 134 | 18V POS ECU DEFECT | Electronic equipment defective; automatic engine shutdown | Shutdown | Contact Service. |
| 136 | 15V NEG ECU DEFECT | Electronic equipment defective; automatic engine shutdown | Shutdown | Contact Service. |
| 137 | L15V BUFFER TEST | Power supply for pressure sensors defective | Warning | Disconnect connectors X2 and X3 from ECU; if alarm does not disappear contact Service; check wiring. |
| 138 | SENSORPOWERDEFECT | Power supply for pressure sensors defective | Warning | Disconnect connectors X2 and X3 from ECU; if alarm does not disappear contact Service; check wiring. |
| 139 | L1 TE BUFFER TEST | Internal electronic fault (temperature sensors) | Warning | Contact Service. |
| 140 | TE BUF. ECU DEFECT | Internal electronic fault (temperature sensors) | Warning | Contact Service. |
| 142 | BANK1 DEFECT | Internal electronic fault; engine does not start | Shutdown | Contact Service. |
| 144 | BANK2 DEFECT | Internal electronic fault; engine does not start | Shutdown | Contact Service. |
| 145 | 16V_GOOD ECU DEFECT | Electronic equipment defective; automatic engine shutdown | Shutdown | Contact Service. |
| 146 | L1 AD-TEST1 SUPPLY | A/D-converter supply voltage too low | Warning | Contact Service. |
| 147 | AD-TEST1 ECU DEFECT | Electronic equipment defective; automatic engine shutdown | Shutdown | Contact Service. |
| 148 | L1 AD-TEST2 SUPPLY | A/D-converter supply voltage too low | Warning | Contact Service. |
| 149 | AD-TEST2 ECU DEFECT | Electronic equipment defective; automatic engine shutdown | Shutdown | Contact Service. |
| 150 | L1 AD-TEST3 SUPPLY | A/D-converter supply voltage too low | Warning | Contact Service. |
| 170 | MI MODULE FAIL | Module in maintenance predictor either defective or missing | Warning | Contact Service. |
| 171 | MI NOT ACTIVE | Maintenance predictor no more activated | Warning | Contact Service. |
| 173 | MODULE WRITE LIMIT | EEPROM write limit reached | Warning | Contact Service. |
| 180 | CAN1 NODE LOST | At least one device not detected on Default CAN bus | Warning | Check wiring (CAN bus); contact Service. |
| 181 | CAN2 NODE LOST | At least one device not detected on Redundant CAN bus | Warning | Check wiring (CAN bus); contact Service. |
| 182 | CAN WRONG PARAMETERS | Consistency error in CAN parameters | Warning | Contact Service. |
| 183 | CAN NO PU-DATA | Error during loading of CAN project design data into ECU | Warning | Contact Service. |
| 184 | CAN PU-DATA EE-FAIL | Error during project design data download in EEPROMs | Warning | Contact Service. |
| 185 | CAN LESS MAILBOXES | Error during CAN initialization | Warning | Contact Service. |
| 186 | CAN1 BUS OFF | Severe fault on Default CAN bus; automatic change-over | Warning | Contact Service. |
| 187 | CAN1 ERROR PASSIVE | Light fault on Default CAN bus (e.g. short-time overload) | Warning | (none) |
| 188 | CAN2 BUS OFF | Severe fault on Redundant CAN bus; automatic change-over to Default CAN bus | Warning | Contact Service. |
| 189 | CAN2 ERROR PASSIVE | Light fault on Redundant CAN bus (e.g. short-time overload) | Warning | (none) |
| 201 | SD T-COOLANT | Sensor defect (coolant temperature) | Warning | Check wiring; contact Service. |
| 202 | SD T-FUEL | Sensor defect (fuel temperature) | Warning | Check wiring; contact Service. |
| 203 | SD T-CHARGE AIR | Sensor defect (charge-air temperature) | Warning | Check wiring; contact Service. |
| 205 | SD T-COOLANT INTERC. | Sensor defect (charge-air coolant temperature) | Warning | Check wiring; contact Service. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Battery-charging generator drive - Drive-belt check and adjustment adjustment
Tools: Belt-tension tester
- Remove guard cover.
- Check belt for contamination by oil, cracks, wear and overheating; replace if defective.
- Place belt-tension tester onto drive belt midway between the belt pulleys.
- Press button uniformly down until spring disengagement can be heard and felt.
- Take off belt-tension tester without changing position of indication arm.
- Read off measuring value at intersection of indication arm and 'KG' scale.
- Specified belt tension for new drive belt: 450 N -50 N; used drive belt: 350 N -50 N.
- If measured value deviates, readjust belt tension.
- To adjust: loosen securing screws, tension belt with tensioning nut, tighten securing screw (2) to 40 Nm +/- 4 Nm, tighten securing screw (3).
- Install guard cover.
Valve clearance - Check and adjustment adjustment
Tools: Feeler gauge, Torque wrench
- Remove cylinder-head cover.
- Bar engine until markings are aligned.
- Check TDC position of piston in cylinder A1.
- Check valve clearance with cold engine: Inlet 0.4 mm, Exhaust 0.6 mm.
- Check all valve clearances in two crankshaft positions (firing and overlap TDC for cylinder A1) per diagram.
- Use feeler gauge between valve bridge and rocker arm.
- If deviation exceeds 0.1 mm, adjust valve clearance.
- Loosen locknut and unscrew adjusting screw a few threads.
- Insert feeler gauge between valve bridge and rocker arm.
- Readjust adjusting screw so feeler gauge just passes through.
- Tighten locknut to 50 Nm holding adjusting screw firmly.
- Check feeler gauge just passes through between valve bridge and rocker arm.
- Remove barring tool, install cylinder-head cover and cover.
Ventilator drive - Drive-belt check and adjustment adjustment
Tools: Belt-tension tester, Torque wrench
- Remove guard cover.
- Check V-belt for contamination, cracks, wear, chunking and overheating; replace if defective.
- Belt-tension check 12/16V: place belt-tension tester midway between pulleys; press button until spring disengagement is heard and felt.
- Read off measured value; new V-belt 660 N, used V-belt 510 N.
- Belt-tension adjustment 12/16V: loosen securing screws, release locknut, screw in tensioning screw to set specified belt tension, tighten locknut, tighten securing screws to 100 Nm.
- Belt-tension check 18V: new drive belt 670 N -50 N, used drive belt 570 N -50 N.
- Belt-tension adjustment 18V: loosen securing screws, screw in tensioning screw to tension V-belt, tighten securing screws to 69 Nm.
- Install guard cover and tighten screws.
Air filter removal and installation maintenance
- Loosen clamp.
- Remove air filter and clamp from flange of intake housing.
- Verify there are no objects in the flange of the intake housing and clean it.
- Place new air filter with clamp onto intake housing.
- Tighten clamp.
Cooling pump - Relief bore check maintenance
⚠ Unguarded rotating and moving engine components.
⚠ Engine noise above 85 dB (A).
- Check relief bore for oil and water discharge.
- Stop engine and disable engine start.
- Clean the relief bore with a wire if dirty.
- Permissible coolant discharge up to 10 drops/hour; permissible oil discharge up to 5 drops/hour.
- If discharge exceeds specified limits, contact Service.
Crankcase breather - oil separator replacement and diaphragm check maintenance
Tools: Torque wrench
- Remove cover with O-ring.
- Remove filter element from housing.
- Insert new filter element into housing observing correct installation position, fit cover with new sealing ring.
- Tighten screws of cover to 6 Nm +/- 2 Nm.
- Replace filter elements of further oil separators in the same way.
- For diaphragm check remove cover, take off spring, seal and diaphragm; check and replace if damaged; install new seal and spring with cover; tighten screws to 6 Nm +/- 2 Nm.
Cylinder-head cover - Removal and installation maintenance
Tools: Torque wrench
- On covers with crankcase breather: loosen clamps and slide rubber sleeves onto the pipe.
- Remove screws.
- Remove cylinder-head cover with gasket from cylinder head.
- Clean mating faces.
- Check condition of gasket and replace if damaged.
- Place covers onto crankcase and tighten screws to 20 Nm.
- Slide rubber sleeves onto pipe connection and tighten all clamps.
Engine - Barring manually maintenance
⚠ Unguarded rotating and moving engine components; risk of serious injury / danger to life.
Tools: Barring tool for 12V engines, Barring tool for 16/18V engines
- Remove cover from flywheel housing.
- Install barring tool on flywheel housing.
- Rotate crankshaft in engine direction of rotation; apart from normal compression resistance there should be no abnormal resistance.
- If resistance exceeds normal compression resistance, contact Service.
- For barring-tool removal follow reverse sequence.
Engine - barring with starting system maintenance
⚠ Unguarded rotating and moving engine components.
Tools: Connector pliers
- Disengage bayonet ring-nut of connector X4 with connector pliers and withdraw connector from ECU.
- Bar engine in unloaded condition: press START button.
- Let crankshaft rotate until oil pressure is indicated.
- Engine start is automatically interrupted when specified starting period expires; if necessary re-start after approx. 20 seconds.
- Plug connector X4 and secure the bayonet ring by turning clockwise until it latches.
Engine coolant - Draining maintenance
⚠ Coolant is hot and under pressure; risk of injury and scalding.
- Provide appropriate container to drain the coolant into.
- Switch off preheating unit.
- Turn breather valve of filler neck counterclockwise to first stop and allow pressure to escape, then remove.
- Draw off precipitated corrosion inhibitor oil from the expansion tank through filler neck.
- Open drain cocks or drain plugs and drain coolant at preheating unit, HT coolant pump and crankcase right side.
- Drain residual coolant at crankcase left side and oil heat exchanger.
- Seal all open drain points.
- Set breather valve onto filler neck and close it.
Engine coolant filling maintenance
⚠ Coolant is hot and under pressure; risk of injury and scalding.
⚠ Cold coolant in hot engine can cause thermal stress - fill only into cold engine.
- Turn breather valve on coolant expansion tank counterclockwise to first stop and allow pressure to escape.
- Continue to turn breather valve counterclockwise and remove.
- Fill coolant through filler neck or filling line until coolant level reaches lower edge of cast-in eye or marking plate.
- Check proper condition of breather valve and clean sealing faces.
- Set breather valve onto filler neck and close it.
- Start the engine and operate it at idle speed for some minutes.
- Check coolant level and top up if required.
Engine oil change maintenance
⚠ Hot engine oil; risk of injury and scalding.
- Provide suitable container to collect the oil.
- Draining at drain plug: remove drain plug and drain oil; install drain plug with new sealing ring.
- Oil extraction: extract all oil from oil pan using the hand pump.
- Replace engine oil filter.
- Determine amount of engine oil required for oil change.
- Open cover of filler neck; pour oil in up to 'max.' mark at oil dipstick.
- Close cover of filler neck.
- Check oil level.
- After oil change and oil filter replacement, bar engine with starting system.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Available documents
Engine spec — 12V2000G83 - WA Colling (MTU)Engine spec — 12V2000G83 Tech Data (MTU)Operator's manual — tp6375 (MTU)Reference — MTU REACH SVHC 2021-03-17-EN final (MTU)Reference — MTU REACH SVHC 2025-09-19-EN final (MTU)