Remove/Install Left Boost Pressure Sensor Upstream Of Throttle Valve - AR09.41-P-1020MNG
Engine 177 in model 253
| 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 | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Remove/install | |||
| 1 | Remove left-hand air filter housing | AR09.10-P-1151MNG | |
| 2 | Remove right air filter housing | AR09.10-P-1152MNG | |
| 3 | Remove cold air intake (9) | ||
| 4 | Remove upper coolant expansion reservoir for low-temperature circuit | AR09.41-P-0050MNG | |
| 5 | Remove vacuum line (1) from left and right exhaust gas turbocharger and seal openings with suitable stop plugs | Fig 3 | |
| 6 | Remove coolant line (2) and seal openings with protective covers | ||
| *BA00.10-P-1002-04A | |||
| Fig 1 | |||
| Fig 2 | |||
| 7 | Disconnect purge lines (3) at separating points (6) and seal openings with protective covers | Fig 2 | |
| 8 | Release and disconnect electrical connection (4) | ||
| 9 | Remove purge lines (3) and the bracket from the chain case cover and place to one side | *BA00.10-P-1002-04A | |
| 10 | Remove screws (5) and lift engine cable duct (8) | *BA00.10-P-1002-04A | |
| 11 | Release and disconnect electrical connector at pressure sensor upstream of left throttle valve (B28/20) | ||
| 12 | Remove screws (7) and remove pressure sensor upstream of left throttle valve (B28/20) | *BA09.41-P-1005-01X | |
| 13 | Seal opening at charge air cooler using a suitable stop plug | Fig 3 | |
| Check | |||
| 14 | Check sealing ring of the pressure sensor upstream of the left throttle valve (B28/20) for damage | In case of a complaint ↓ Install new pressure sensor upstream of left throttle valve (B28/20). |
|
| 15 | Install in the reverse order | ||
| 16 | Read out and erase fault memory | ||
| AD00.00-P-2000-04B | |||
| 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 | |
| 17 | Perform an engine test run and check engine for proper function |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1002-04A | M6X1 | Nm | 9 | 13 |
CHARGE AIR LINE/CHARGE AIR COOLING
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA09.41-P-1005-01X | Bolt, boost pressure sensor upstream/downstream of throttle valve | Nm | 6 |