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How to replace the coolant level sensor on a BMW Series 3 E46.

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Checks and maintenance

Let's see how to replace the coolant sensor on a BMW Series 3 E46 version: to comfortably access the sensor, we need to remove the alternator; there are two of them. The upper one is for the coolant temperature, while the lower one is for the oil pressure. Let's focus on the upper one by disconnecting the electrical connector, and then remove it using a 22 mm ratchet and an extension. We can find the replacement part, for example, on auto-doc. It has the code 830C0006 and costs 6.90 euros plus 9.90 euros for shipping. Let's replace it, reconnect the electrical connector, and of course, we need to put the alternator back in place!

Posted on 8 January 2026 by ScegliAuto

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How to Check the Oil Level on a Jeep Renegade?

To check the oil level on a Jeep Renegade, you need to open the bonnet to access the components inside the engine bay: on the lower left side of the engine block, you will find the dipstick for checking the level. This should be pulled out and thoroughly cleaned with a cloth: once cleaned, reinsert it back into its tube and pull it out immediately after. This way, you can check that the oil mark is between the minimum and maximum levels; finally, you can place the dipstick back in its tube.

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