2019年11月16日 · The oil pressure switch F22 is located in the oil filter housing near the bottom. Tightened to 20 Nm. Looks relatively easy to replace once you can access it. The reduced oil pressure switch F378? is located in the block right next to the oil filter housing and looks like it might be even easier to replace. Tightened to 20 Nm.

2018年3月5日 · I ordered a genuine F22 pressure switch for the front of the engine. Audi could not advise which of two options my car had for that sensor switch. The choices were: a single pin grey or a double pin green. Mine is the latter. Given there is two options, experience suggests the part number could be the same for both so others beware.

2020年6月30日 · You should only see 0 if engine off, 1 or 3 if engine on. Non-zero with engine off means a defective switch or electrical path. 2 with engine on means a problem with the F378 or its electrical path. It seems to take about .4sec to see a change in …

Since oil switches F22 or F378 are not faulting your oil pressure is fine. You only have an issue in the vee at F447. You don't state your mileage, but there is a screen over F447. It is possible that the screen is plugged causing improbable pressure readings at the sensor. Cleaning the F447 screen may be all that is necessary to restore function.

Open the oil filter housing to check the rubber oil drain plug. If the plug is not positioned correctly in the spring (Figure 1), replace the plug. Replace the low pressure oil pressure sensor F378 (Figure 2). If the condition persists, contact the Technical Assistance Center (TAC). Figure 1. Correct and incorrect position of the oil drain plug.

2018年5月11日 · The oil pressure switch at the oil filter stand is the gray 1-pin reduced oil pressure switch F378, 038 919 081 P. This monitors basic oil pressure at the 0.75-1.05 bar breakpoint.

A4 Mk3 > Audi Workshop Service and Repair Manuals > Power unit | 4-cylinder direct petrol injection engine (1.8 ltr., 2.0 ltr. 4-valve turbo), mechanics | Engine lubrication | Oil filter, engine oil cooler, oil pressure switches | Removing and installing oil …

If the oil pressure is low at the oil filter housing, then the F378 oil switch is not the cause of the problem. The reason why the Audi A7 has two oil pressure switches is for redundancy. If one switch fails, the other switch can still send a signal to the engine control unit (ECU) to turn on the low oil pressure light.

Engine Oil Pressure Switch, sensor code F378. This switch controls the low oil pressure warning light.

2022年9月23日 · F378 is a pair of normally open contacts, which is used to monitor whether the oil pressure is established. Normally, the normally open contact of F378 is closed under the action of oil pressure when idling, that is, the status changes from "open" to "closed".