Remove, install resonance intake manifold - AR09.20-P-1961GZA (ML350, ML550, GL450, GL550)
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 272, 273 in MODEL 164, 251
| Remove/install | |||
|---|---|---|---|
| Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel | No fire, sparks, open flames or smoking. Only pour fuels into suitable and appropriately marked containers. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| 1 | Remove air filter housing | AR09.10-P-1150GZA | |
| 2 | Remove right connector (R) at ME-SFI [ME] control unit (N3/10) | ||
| 3 | Disconnect electrical connectors (1a, 1b) | ||
| 4 | Remove jack for electrical connector (1b) on fuel distributor (2) | ||
| 5 | Remove electrical feed line (1c) from left control unit bracket (3) | ||
| 6 | Pull ME-SFI [ME] control unit (N3/10) out of left control unit bracket (3) and place to one side | ||
| 7 | Remove hot film mass air flow sensor (B2/5) | AR07.07-P-1453GZA | |
| 8 | Remove air guide housing (4) | AR09.20-P-0080GZA | |
| 9 | Disconnect hoses (5a, 5b) from crankcase ventilation system | ||
| 10 | Remove right control unit holder | *BA07.08-P-1002-01A | |
| 11 | Detach feed line duct (6a) from cylinder head cover and resonance intake manifold (7) | *BA15.18-P-1001-01B | |
| *BA15.18-P-1002-01B | |||
| 12 | Remove feed line duct (6b) from resonance intake manifold (7) | *BA15.18-P-1001-01B | |
| 13 | Remove left rear motor suspension lug (8) | *BA01.30-P-1005-01O | |
| *BA15.18-P-1003-01B | |||
| 14 | Remove feed line duct (6c) from cylinder head cover | *BA15.18-P-1002-01B | |
| 15 | Release and disconnect the electrical connectors on fuel injection valves (Y62) | ||
| 16 | Release and disconnect the electrical connectors on the left intake manifold tumble flap position sensor (B28/9) and right intake manifold tumble flap position sensor (B28/10) | ||
| 17 | Disconnect electrical connector (9) | ||
| 18 | Release and disconnect the electrical connector at the throttle valve actuator (M16/6) | ||
| 19 | Disconnect electrical connector from electrical air pump (M33) | ||
| 20 | Reduce fuel pressure with the pressure hose via the service valve (10) | AR07.03-P-1460-01GZ | |
| *BA07.03-P-1004-01B | |||
| Figure | |||
| 21 | Disconnect fuel line (11) from fuel distributor (2) | ||
| *BA07.03-P-1001-01B | |||
| Fig 4 | |||
| 22 | Remove bolts (7a) | *BA09.20-P-1001-01N | |
| 23 | Lift resonance intake manifold (7) to the front and detach pneumatic lines (12) from connection fittings at the resonance intake manifold (7) | ||
| 24 | Remove resonance intake manifold (7) | ||
| 25 | Cover openings in cylinder heads | ||
| Only perform steps 26 to 29 when replacing the resonance intake manifold (7) | |||
| 26 | Remove left control unit bracket (3) from resonance intake manifold (7) | Only when replacing intake manifold (7). |
*BA07.08-P-1002-01A |
| 27 | Detach fuel distributor (2) with the fuel injection valves (Y62) from the resonance intake manifold (7) | Only when replacing intake manifold (7). |
*BA07.03-P-1002-01B |
| 28 | Remove throttle valve actuator (M16/6) from resonance intake manifold (7) | Only when replacing intake manifold (7). |
*BA07.61-P-1001-01D |
| 29 | Remove left intake manifold tumble flap position sensor (B28/9) and right intake manifold tumble flap position sensor (B28/10) from resonance intake manifold (7) | Only when replacing intake manifold (7). |
*BA09.20-P-1002-01N |
| 30 | Install in the reverse order | ||
| Checking | |||
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 31 | Carry out an engine test run and check intake tract and fuel system for leaks |
CONTROL UNIT
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA07.08-P-1002-01A | Bolt, control unit holder to resonance intake manifold | Nm | 8 | 8 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA15.18-P-1001-01B | Bolt, feed line duct to resonance intake manifold | Nm | 8 | 8 |
| BA15.18-P-1002-01B | Bolt, feed line duct to cylinder head cover | Nm | 8 | 8 |
| BA15.18-P-1003-01B | Bolt, feed line duct to motor suspension lug | Nm | 8 | 8 |
CYLINDER HEAD
| Number | Designation | Engine 272 | Engine 273 | ||
|---|---|---|---|---|---|
| BA01.30-P-1005-01O | Bolt connecting suspension lug to cylinder head | M8 | Nm | 20 | 20 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 272 | Engine 273 | ||
|---|---|---|---|---|---|
| BA07.03-P-1001-01B | Union nut, fuel feed line to fuel distributor | Nm | 20 | 20 | |
| BA07.03-P-1002-01B | Bolt connecting fuel distributor to resonance intake manifold | Nm | 9 | 9 | |
| BA07.03-P-1004-01B | Protective cap to service valve | Plastic | Nm | 2 | - |
| Metal | Nm | 15 | - | ||
INTAKE MANIFOLD
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA09.20-P-1001-01N | Bolt connecting resonance intake manifold to cylinder head | Nm | 9 | 9 |
| BA09.20-P-1002-01N | Bolt connecting tumble flap position sensor to resonance intake manifold | Nm | 6 | 6 |
ME GASOLINE INJECTION AND IGNITION SYSTEM
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA07.61-P-1001-01D | Bolt connecting throttle valve actuator to resonance intake manifold | Nm | 9 | 9 |