The TMS Oil Temperature Sensor Flange was designed to get your oil temperature from the best possible location: the sump. There are adapters used to fit temperature sensors on engines in many locations, and both the TMS Engineering department and testing on and off the track have shown that this is the best solution. We accomplish this by removing the factory oil level sensor if equipped or block off plate and using the existing hole and bolt pattern on the oil pan with no modifications. Most factory and aftermarket temperature sensors are located after the oil pump, which does not give you an accurate temperature reading of the oil that is actually lubricating the engine. At the stock location the sensor picks up heat not only from the oil stream, but also from the oil pump and housing which will skew the reading. By relocating the sensor it also reduces clutter and sits flush against the bottom of the oil pan to avoid potential clearance issues. Any sensor with an M12 x 1.50mm thread can be used.

Applications:
1987-1991 E30 M3
1992-1999 3 Series E36 (325i, 328i, 323is, Euro M3 3.0 and Euro M3 3.2 Only!)
1999-2006 3 Series E46 (All)
1991-1995 5 Series E34 (525i M50)
1997-2003 5 Series E39 (525i, 528i, 530i, 540i, 540iP, M5)
2004-xxxx 5 Series E60 (525i, 530i)
1995-2001 7 Series E38
Z3 (2.5, 2.5i, 2.8, 3.0i, M3.2 S54)
Z4 (2.5, 3.0)
Z8 (All)

Click Here for installation Instructions.