Remove/Install Coolant Circuit Return Line Of Turbochargers - AR20.20-P-1101MNG
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 injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| 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 level | AH20.00-P-1142-01CW | ||
| Remove/install | |||
| 1 | Remove upper design cover over heat shield (26) in upward direction | ||
| 2 | Drain off coolant | AR20.00-P-1142MNG | |
| 3 | Remove left-hand air filter housing | AR09.10-P-1151MNG | |
| 4 | Remove right air filter housing | AR09.10-P-1151MNG | |
| 5 | 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 | |||
| 6 | Remove screws/bolts (25) | *BA09.40-P-1006-01ZA | |
| 7 | Remove heat shield (26) in upward direction | ||
| 8 | Remove ignition coil, cylinders 5+6 (T4/2) | AR15.12-P-2008MNG | |
| 9 | Remove left heat shield at left exhaust gas turbocharger | AR09.40-P-6026-01MNG | |
| *BA09.40-P-1007-01ZA | |||
| 10 | Check elastomer bearings of left heat shield at left exhaust gas turbocharger for damage | If a problem arises ↓ Replace elastomer bearing. |
|
| 11 | Remove boot (16) on left exhaust gas turbocharger and place to one side | *BA09.41-P-1002-01X | |
| 12 | Remove oil circuit feed line at left turbocharger, and place to side | AR09.40-P-6040MNG | |
| 13 | Unscrew screw/bolts (9) | *BA09.40-P-1004-01ZA | |
| 14 | Remove screws/bolts (10, 12, 13, 15) | *BA09.40-P-1004-01ZA | |
| 15 | Remove coolant circuit return line (11) with coolant circuit vent line (14) upwards, and seal openings with suitable stop plugs | ||
| Fig 2 | |||
| 16 | Remove coolant circuit vent line (14) from coolant circuit return line (11) | On replacing coolant circuit return line (11). | AR20.20-P-1200MNG |
| 17 | Install in the reverse order | ||
| 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. | 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 | |
| 18 | Perform an engine test run and check engine for proper operation and leaktightness | ||
| 19 | Install center and front lower engine compartment paneling | AR61.20-P-1105LW | |
| 20 | Install upper design cover over heat shield (26) |
TURBOCHARGER
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.40-P-1004-01ZA | Bolt, coolant line to turbocharger/cylinder head | Nm | 9 |
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 |