If you can reach it with extension cords?

Get two of these.
Attach one to the oil pan, and the other to the passenger side cylinder block for two hours.
Then try to start it.

magnet block heaters.
https://www.google.com/search?q=magnet+block+heater&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-USfficial&client=firefox-a


Cold weather starting links

Emergency (starter failure) tow starting a gas or diesel engine with automatic trans
.

__________________
ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/