Right behind the crossover injection line. Pretty sure that will throw a code. Luckily this coolant sensor has been used on Mercedes from 2006-2021 on both gas and diesels. Hopefully my dealership will have it in stock.

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2023 Ram 1500
1987 300TD
2002 ML 320
2001 Chevy Suburban
2006 S430 (gone and trying to forget)
1985 300TD (returned to father)
2007 GL320 CDI (sold to brother)
1995 E320 (sold)
1991 500SL (parted out)
1995 E300D (RIP)
1991 300D (RIP)
1995 E320 Wagon (sold)
1992 300TE (sold)
1988 300CE (sold)
1994 E320 (sold)
1995 E300D (sold)
1978 300D (RIP)
1987 260E (sold)
1992 400E (parted out)
1989 300E (parted out)