# 190e mercedes where is the sensor for electromagnetic engine fan

**URL:** <https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935>\
**Category:** Maintenance/Repairs\
**Created:** [April 16, 2008, 8:08am UTC](https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935 "2008-04-16T08:08:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![johnfwurm](https://avatars.discourse-cdn.com/v4/letter/j/439d5e/32.png) [@johnfwurm](https://community.cartalk.com/u/johnfwurm)\
**Post date:** [April 16, 2008, 8:08am UTC](https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935/1 "2008-04-16T08:08:08Z")

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Can anyone tell me where the thermocouple sensor that turns on the engine clutch fan is located on a 1986 190e 2.3 ? There are three possibilities on the top front of the engine by the heater hose.

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**Author:** ![pleasedodgevan](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@pleasedodgevan](https://community.cartalk.com/u/pleasedodgevan)\
**Post date:** [April 16, 2008, 7:00pm UTC](https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935/2 "2008-04-16T19:00:20Z")

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Sometimes you can tell. With the ignition switch in the on position, disconnect them one at a time and see if the fan comes on. Sometimes, you can compare the wiring from the fan with the one on the switch to guess right the first time, sometimes not.

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**Author:** ![Craig58](https://avatars.discourse-cdn.com/v4/letter/c/3da27b/32.png) [@Craig58](https://community.cartalk.com/u/Craig58)\
**Post date:** [April 16, 2008, 10:29pm UTC](https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935/3 "2008-04-16T22:29:49Z")

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Find something that looks like this:

[http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.mercedesshop.com/&cookieid=1CQ0J3JZ42CJ13K7TQ&year=1986&make=MB&model=190-E-002&category=G&part=Engine+Temp.+Sensor](http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.mercedesshop.com/&cookieid=1CQ0J3JZ42CJ13K7TQ&year=1986&make=MB&model=190-E-002&category=G&part=Engine+Temp.+Sensor)

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**Author:** ![Baxter\_s\_Dad](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/baxter_s_dad/32/27_2.png) [@Baxter\_s\_Dad](https://community.cartalk.com/u/Baxter_s_Dad)\
**Post date:** [April 17, 2008, 1:23am UTC](https://community.cartalk.com/t/190e-mercedes-where-is-the-sensor-for-electromagnetic-engine-fan/12935/4 "2008-04-17T01:23:33Z")

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On a 190 it’s on the block up by the thermostat.

Benzman