E46 DIY Oil Level Sensor

These instructions are only as a guide for people to replace their flex oil level senor. Please read through all the instructions before attempting to install on your own. I take no responsibilities for any inaccuracies or problems/damage /injuries you may encounter from using these instructions. Please consult your shop manual.

When your engine oil sensor goes bad, the yellow oil light will come on when you turn on your car. The light will turn off shortly afterwards. Check your dip stick to make sure your oil level isn't low.

Parts Needed
1 oil level sensor (part # 12 61 7 508 003) (Figure A )
1 Gasket Ring - for oil level sensor (part # 12 61 1 744 292)
Optional Parts (if you're doing any oil change while replacing the sensor)
6.5 quarts of Synthetic oil
1 Oil filter (part # 11 42 7 512 300)(Figure B )

Tools Needed
10mm Socket
16mm Socket
17mm Socket
36mm Socket
Screw driver
Jack & Jack Stands / Lift

1. Raise the car and place on jack stands. Never work on a car that is only supported by a jack.

2. Remove oil pan access panel. 1 screw. (Figure C)

3. Loosen oil drain plug, 17mm bolt. (Figure D) Place a pan below oil drain plug. Remove oil drain plug by hand and drain oil into pan. Reinstall drain plug when oil is fully drained.

4. Remove underbody splash guard. Its held in place by screws and some plastic plugs

5. Remove reinforcement plate. It is held up by (8) 16mm bolts. (Figure E )

6. Remove engine oil sensor. It is held in place by (3) 10mm nuts. (Figure F ) Unclip the sensor by squeezing the clip on the sides. Replace gasket ring and oil level sensor.

7. Remount reinforcement place and underbody splash guard.

8. Refill engine with oil. ~6.5 quarts of oil. Replace oil filter if you're also doing an oil change. (36mm socket)