Remove/install charge air manifold - AR09.41-P-1310MRE
ENGINE 274 in MODEL 172
| 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 | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| Remove/install | |||
| 1 | Remove upper engine cover | ||
| 2 | Remove pressure in low-temperature circuit of the engine cooling system | ||
| 3 | Disconnect coolant vent line on charge air cooler | AR09.41-P-6817MRE | |
| 4 | Remove charge air cooler and place with attached lines and hoses to one side | AR09.41-P-6817MRE | |
| 5 | Disconnect electrical connection for engine wiring harness on ME-SFI [ME] control unit (N3/10) | ||
| 6 | Unclip ME-SFI [ME] control unit (N3/10) and place to one side with connected lines | ||
| 7 | Remove charge air cooler bracket and ME-SFI [ME] control unit (N3/10) | AR07.08-P-7008MR | |
| *BA09.41-P-1003-01U | |||
| 8 | Disconnect electrical connection at pressure sensor downstream of throttle valve (B28/7) | ||
| 9 | Disconnect electrical connection on charge air temperature sensor downstream of throttle valve (B17/9) | ||
| 10 | Disconnect electrical connection at throttle valve actuator (M16/6) | AR07.61-P-1401MRE | |
| 11 | Unclip subharness at throttle valve actuator (M16/6) | ||
| 12 | Disconnect electrical connection on partial load operation crankcase ventilation system valve (Y58/2) and unclip partial load operation crankcase ventilation system valve (Y58/2) to the rear out of the charge air distributor (3) | ||
| 13 | Unfasten guide tube and set aside | AR18.40-P-3510MR | |
| 14 | Detach vacuum hoses at charge air distributor (3) | ||
| 15 | Remove screw/bolts (2) and remove charge air distributor (3) upwards | Tightening procedure for charge air manifold |
AR09.41-P-1312-01MR |
| *BA09.20-P-1001-01U | |||
| 16 | Detach throttle valve actuator (M16/6) from charge air distributor (3) | When replacing the charge air distributor (3). | |
| AR07.61-P-1401MRE | |||
| 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 | Carry out engine test run, checking the engine for leaktightness and proper operation |
INTAKE MANIFOLD
| Number | Designation | Engine 274 | |
|---|---|---|---|
| BA09.20-P-1001-01U | Bolt, charge air distributor to cylinder head | Nm | 14 |
CHARGE AIR PIPE/CHARGE AIR COOLING
| Number | Designation | Engine 274 | |
|---|---|---|---|
| BA09.41-P-1003-01U | Screw/bolt, water-cooled charge air cooler bracket to cylinder head cover/cylinder head | Nm | 9 |