Remove/Install Left Turbocharger - AR09.40-P-6026MNG
Engine 177 in model 253
| Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | AS49.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. | AS00.00-Z-0017-01A | |
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Notes on coolant | AH20.00-N-2080-01A | ||
| Remove/install | |||
| 1 | Drain off coolant | AR20.00-P-1142MNG | |
| 2 | Remove left-hand air filter housing | AR09.10-P-1151MNG | |
| 3 | Remove right air filter housing | AR09.10-P-1152MNG | |
| 4 | Unclip engine wiring harness of left cylinder head cover at heat shields and place to one side | AR15.18-P-1000-07MNG | |
| *BA15.10-P-1003-05F | |||
| *BA15.18-P-1001-01G | |||
| 5 | Remove ignition coil for cylinders 5+6 (T4/2) | AR15.12-P-2008MNG | |
| 6 | Remove left heat shield on left exhaust gas turbocharger (2) | AR09.40-P-6026-01MNG | |
| *BA09.40-P-1007-01ZA | |||
| 7 | Check elastomer bearings of left heat shield for damage | If a problem arises ↓ Replace elastomer bearing. |
|
| 8 | Remove screws (25) and remove heat shield (26) in upward direction | *BA09.40-P-1006-01ZA | |
| 9 | Remove left and right catalytic converter and secure against falling down | Left catalytic converter | AR49.20-P-0101MNG |
| Right catalytic converter | AR49.20-P-0102MNG | ||
| 10 | Remove boot (71) at left exhaust gas turbocharger (2) and place to one side | *BA01.20-P-1003-01J | |
| 11 | Remove vacuum hose (11) at left exhaust gas turbocharger (2) | ||
| 12 | Remove oil feed line (31) from left exhaust gas turbocharger (2) and seal openings with suitable stop plugs | AR09.40-P-6040MNG | |
| Fig 1 | |||
| 13 | Remove coolant return line (7) with bleed line (10) | AR20.20-P-1101MNG | |
| 14 | Remove coolant feed pipe (8) on left exhaust gas turbocharger (2) and on left cylinder head | AR20.20-P-1100MNG | |
| 15 | Remove upper coolant expansion reservoir for low-temperature circuit and place to one side with connected lines | AR09.41-P-0050MNG | |
| 16 | Remove charge air hose on left exhaust gas turbocharger (2) | *BA09.41-P-1002-01X | |
| 17 | Remove clamp (5) | *BA09.40-P-1001-01ZA | |
| Fig 2 | |||
| 18 | Remove left exhaust gas turbocharger (2) with oil return feed line (18) in upward direction | Ensure that marking (29) on oil return feed line (18) is flush with crankcase. Oil return feed line (18) will otherwise be leaky. |
|
| 19 | Remove oil return feed line (18) from left exhaust gas turbocharger (2) | AR09.40-P-6041MNG | |
| 20 | Install in the reverse order | ||
| Check | |||
| 21 |
Check engine oil level and correct if necessary | AP18.00-P-1812CKI | |
22 |
Risk of accident
from vehicle starting off by itself when engine running. Risk of injury
(bruises and burns) resulting from working on the engine while it is being started or when it is running. Perform an engine test run; check engine for functionality and leaktightness |
Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A |
| 23 | Install center and front lower engine compartment paneling | AR61.20-P-1105LW | |
| 24 | Install upper engine cover |
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA01.20-P-1003-01J | Clamp, boot to exhaust gas turbocharger/air filter | Nm | 1, 5 |
TURBOCHARGER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.40-P-1001-01ZA | Bolt, turbocharger clamp to exhaust manifold | Nm | 21 |
TURBOCHARGER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.40-P-1006-01ZA | Bolt, upper heat shield to bracket/side heat shield | Nm | 9 |
TURBOCHARGER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.40-P-1007-01ZA | Bolt, side heat shield to cylinder head cover | Nm | 9 |
CHARGE AIR LINE/CHARGE AIR COOLING
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.41-P-1002-01X | Bolt, clamp for charge air hose to charge-air distributor | Nm | 6 |
GROUND STRAP
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA15.10-P-1003-05F | Bolt, engine wiring harness ground to cylinder head cover | Nm | 9 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA15.18-P-1001-01G | Bolt, engine wiring harness to cylinder head cover | Nm | 9 |