Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
61 31 382 Replacing Level Switch For Coolant
Warning! Danger of scalding! Only perform this work after engine has cooled down.
Important! Do not damage connected water hoses. Reposition coolant expansion tank (2) as far as possible until coolant level switch forms the highest point. This will prevent coolant from escaping on opening. If necessary, catch escaping coolant and feed back in later.
Unscrew nuts (1). Pull coolant expansion tank (2) in direction of arrow out of grommet (3) underneath. Installation: Make sure coolant expansion tank (2) is correctly seated in grommet.
Disconnect plug connection (1) from level switch (2). Turn level switch (2) in direction of arrow, pull downwards out of coolant expansion tank and remove.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.