[montr]

I have a BMW fault code 4873 (OBD P2457) "Additional EGR cooling, plausibility: Additional EGR cooler bypass valve does not open"

The EGR cooler bypass valve spring is broken and the EGR is leaking at the weld close to the bypass valve. I ordered an new EGR cooler today and I will expect to replace next week.

I tried to disconnect the connector for the temperature probe in the EGR cooler but I was not able. There is a tab that slide back but the connector did not move, I did not want to try harder and break it.

Here is the connector. Any tips on how to disconnect?


Thanks

[335dlci]

Use a small pick or pocket screw driver and lift the tab up from the inside of where the two connections meet by the numbers/letters printed on it

[montr]

Originally Posted by 335dlci

Use a small pick or pocket screw driver and lift the tab up from the inside of where the two connections meet by the numbers/letters printed on it

Thanks for the tip