Thermo-Time Switch, Bosch - E21, E30 318i/325e, E12, E28, E24, E23, M10, M20, M30

This part is listed by BMW as BMW part number 13621362599 (13 62 1 362 599) and is described as the Thermo-Time Switch (TTS) for the fuel injection system of some of the classic BMW engines including some M10, M20, and M30 engines. This sensor provides coolant temp data to the ECU to control the cold-start injector. It's a vital sensor to fuel injection operation and is a good part to have on hand as a spare.

This is an OEM thermo time switch manufactured by Bosch - the original supplier to BMW for this part, as well as many other engine components. As the OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

3 Series
E21 (75-83) > 320i
3 Series
E30 (84-91) > 318i
E30 (84-91) > 325e
E30 (84-91) > 325es
5 Series
E12 (77-81) > 528i
E12 (77-81) > 530i
5 Series
E28 (82-88) > 528e
E28 (82-88) > 533i
E28 (82-88) > 535i
E28 (82-88) > M5 (87-88)
6 Series
E24 (77-89) > 633CSi
E24 (77-89) > 635CSi
E24 (77-89) > M6
7 Series
E23 (77-87) > 733i