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This coolant temperature sensor is basically used on almost all MB engines.... the list is so long in EPC.
In say a M272 engine, where this sensor get a locking U clip.
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On M276-s, look Ma , no U clip to lock sensor in place ??
So, lets play a guessing game. how does this coolant temp sensor securely get locked down , without the usual metal U clip as locking device ?
The pressure at the coolant temp sensor can be as high as 20ish PSI, not a small pressure value.
Here is the cavity at Pipe #1 for coolant temperature sensor.
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It even has ribs to push down coolant temp sensor
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So be very careful when re-installing the coolant temp sensor and the pipe #1.
Do not get wire pinched or the sensor angled wrong, or else sensor will break from pipe #1 push down pressure.
Since the sensor is purely held by o-ring, it can spin 360 degrees.....until we use pipe #1 as lock down facility.
So feel the sensor sit well in pipe #1 cavity first, and then slowly cap it with pipe #1 and start finding the o-ring hole of pipe #1.
My order for new coolant temp sensor and its o-ring is still 2 months more waiting period, DUMB AZZ !!! It was 90 days waiting period, crazy.
That o-ring now looks bad already
Not that it will leak, but I hate how aged it look.
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