Another thing to be aware of with a manual switched glow plug system with pin type glow plugs: if you glow too long, you can toast a pin type plug. The series plugs were much more tolerant of overheating, but the element in a pin plug can make enough heat to burn through the shell.

The colder it is when glowing, the longer to hold the switch, but experiment and glow it on the quick side at first until you get a feel for it.

In the eighties and 90’s, glow plugs were about a $1.25 each. Those days are long gone so move forward carefully.

Good luck.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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