Remove/install right cylinder head cover - AR01.20-P-5012GZA (ML350, ML550, GL450, GL550): Notes
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 | |||
|---|---|---|---|
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Notes on avoiding damage to ignition system | AH15.10-P-0002-01V | ||
| 1 | Turn key in ignition lock to position "0" | Vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. | |
| 2 | Remove air filter housing | AR09.10-P-1150GZA | |
| 3 | Remove bolts (1a) and remove bracket (1) for front engine cover with air pump switchover valve (Y32) | *BA01.30-P-1009-01O | |
| 4 | Remove right air shutoff valve (2) | AR14.30-P-7200GZA | |
| 5 | Remove front cover (3) on the right cylinder head | AR01.30-P-5700GZC | |
| 6 | Remove ignition coils for right cylinder bank | AR15.12-P-2003GZA | |
| 7 | Remove cover (4) on centrifuge | AR01.20-P-2100GZA | |
| *BA01.30-P-1008-01O | |||
| 8 | Remove connector (R) on ME-SFI [ME] control unit (N3/10) | ||
| 9 | Disconnect ME-SFI [ME] control unit (N3/10) from left control unit bracket (5l) and right control unit bracket (5r) and place to one side | Do (N3/10) not detach connector on ME-SFI [ME] control unit. | |
| 10 | Remove right control unit bracket (5r) | *BA07.08-P-1002-01A | |
| 11 | Detach ground line (6) from cylinder head cover (7) | *BA01.30-P-1010-01O | |
| 12 | Detach feed line (8) from resonance intake manifold (9), cylinder head cover (7) and right rear motor suspension lug (10) | Place feed channel (8) to one side. | |
| *BA15.18-P-1001-01B | |||
| *BA15.18-P-1002-01B | |||
| *BA15.18-P-1003-01B | |||
| 13 | Loosen bolts for cylinder head cover (7) in reverse order of tightening procedure and remove them | Engine 272 | AR01.20-P-5014-03VA |
| Engine 273 | AR01.20-P-5014-03SX | ||
| *BA01.30-P-1004-01O | |||
| 14 | Pry off cylinder head cover (7) from cylinder head carefully | To avoid damaging sealing surfaces, do not hit the tool for prying off between cylinder head cover (7) and cylinder head. Installation: Apply sealant to cylinder head cover (7). |
|
| Notes on sealant path for cylinder head cover | Engine 272 | AH01.30-P-1000-08V | |
| Engine 273 | AH01.30-P-1000-08SX | ||
| Fig 2 | |||
| Loctite sealant 5970 | *BR00.45-Z-1013-01A | ||
| 15 | Clean sealing surfaces at cylinder head and at cylinder head cover (7) | Do not use any sharp-edged tools or abrasive paper as this will damage the sealing surfaces. | AR01.00-P-0050-01A |
| Loctite 7200 | *BR00.45-Z-1038-04A | ||
| Cleaning spray, Loctite 7063 (150ml) | *BR00.45-Z-1046-04A | ||
| 16 | Install in the reverse order | ||
| 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 | |
| 17 | Conduct engine test run and check engine for leaks while it is running |
CYLINDER HEAD
| Number | Designation | Engine 272 | Engine 273 | |||
|---|---|---|---|---|---|---|
| BA01.30-P-1004-01O | Bolt for cylinder head cover on cylinder head | M7 | Stage 1 | Nm | 12 | 12 |
| Stage 2 | ∠ ° | 90 | 90 | |||
| BA01.30-P-1008-01O | Bolt of centrifuge cover to cylinder head | M6 | Nm | 9 | 9 | |
| BA01.30-P-1009-01O | Bolt, switchover valve bracket to cylinder head | M6 | Nm | 9 | 9 | |
| BA01.30-P-1010-01O | Bolt, ground line to cylinder head cover | M6 | Nm | 9 | 9 | |
CONTROL UNIT
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA07.08-P-1002-01A | Bolt, control unit bracket to resonance intake manifold | Nm | 8 | 8 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 272 | Engine 273 | |
|---|---|---|---|---|
| BA15.18-P-1001-01B | Bolt, feed duct to resonance intake manifold | Nm | 8 | 8 |
| BA15.18-P-1002-01B | Bolt, feed duct to cylinder head cover | Nm | 8 | 8 |
| BA15.18-P-1003-01B | Bolt, feed duct to engine lifting eye | Nm | 8 | 8 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1013-01A | Loctite sealant 5970 | A 003 989 98 20 |
| BR00.45-Z-1038-04A | Loctite 7200 | Henkel Loctite Deutschland GmbH Arabellastrasse 17 81925 Munchen Germany Tel. +49 899268-0 Fax + 49 899101978 www.Loctite.de |
| BR00.45-Z-1046-04A | Cleaning spray, Loctite 7063 (150ml) | A 001 986 71 71 10 |