Testing oil pressure - AR18.00-P-1250AO
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 120
| Testing oil pressure at oil filter cap | |||
| 1 | Unscrew oil filter cap | *BA18.20-P-1002-01B | |
| Fig 3 | |||
| 2 | Replace oil filter element | ||
| 3 | Fit on oil filter cap (01) with test connection | ||
| Oil filter cap with test connection for measuring oil pressure | WF58.50-P-1800-01A | ||
| 4 | Connect pressure line (3) to test connection | ||
| 5 | Close T-valve (2) (turn closed) | ||
| 6 | Inspect oil level | ||
| 7 | Remove dipstick (10) | ||
| 8 | Insert temperature sensor of remote thermometer (9) into dipstick. | Figure | |
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury from bruises and burns if you hold your hand into engine when it is started or when it is running. | Secure vehicle to prevent it moving off by itself. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 9 | Run engine and test oil pressure at the stated engine speeds and temperatures | At the operating temperature of the engine oil, the oil pressure at idle speed must not drop below 0.3 bar. When the throttle is blipped, the oil pressure must rise without any delay and reach at least 3 bar at an engine speed of 3000 rpm. |
|
| Testing oil pressure through connection hole at oil filter | |||
| 1 | Unscrew oil pressure sensor (B5) together with seal (6) at oil filter (7) | *BA18.40-P-1001-01A | |
| 2 | Fit on connection fitting or union (5) together with seal (6) at oil filter (7). | *WH58.30-Z-1013-05A | |
| *WH58.30-Z-1011-05A | |||
| 3 | Connect pressure line (3) to connection fitting or union (5) | ||
| 4 | Close T-valve (2) | ||
| 5 | Inspect oil level | ||
| 6 | Remove dipstick (10) | ||
| 7 | Insert temperature sensor of remote thermometer (9) into dipstick guide tube. | ||
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury from bruises and burns if you hold your hand into engine when it is started or when it is running. | Secure vehicle to prevent it moving off by itself. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 8 | Run engine and test oil pressure at the stated engine speeds and temperatures | At the operating temperature of the engine oil, the oil pressure at idle speed must not drop below 0.3 bar. When the throttle is blipped, the oil pressure must rise without any delay and reach at least 3 bar at an engine speed of 3000 rpm. |
Figure |
| Number | Designation | Engine 120 | |
|---|---|---|---|
| BA18.40-P-1001-01A | Oil pressure sensor to oil filter | Nm | 15 |
| Number | Designation | Engine 120 | |
|---|---|---|---|
| BA18.20-P-1002-01B | Screw cap of oil filter | Nm | 20 |
COMMERCIALLY AVAILABLE TOOLS
| Number | Designation | |
|---|---|---|
| WH58.30-Z-1011-05A | Adapter fitting M10x1-M12x1.5 for oil pressure gage | 915 007 004 001 (DIN) |
| WH58.30-Z-1013-05A | Connection fitting M12x1.5 for oil pressure gage | 915 006 004 002 (DIN) |