Скачать или смотреть How does engine electric pre-heater work? Thermal camera view on the coolant | Toyota RAV4 D-4D

In this video, I will demonstrate how 500W engine pre-heater put into hose between the engine block and cabin heater warms up the car using digital temperature meter and ThermoSeek sensor. Ambient temperature outside: 4C with the engine being a bit warm. The body of the coolant pre-heater warmed up from 17C to 78C during 10 minutes, while coolant hose between the engine and the cabin heater from 23C to 65C. The returning hose from the cabin heater got only 39C. The thermal camera is pointed at the hoses/turbocharger area.

Toyota D-4D diesel engines are quite reliable and can be used for hundreds of thousands of kilometres. However, living in a cold environment the life of the engine can be shortened by cold weather and short trips. Even though it is not a problem to crank the engine down below -20C, it still helps to have a heater. I have been considering a few options such that Webasto and 220v electric coolant heater. The last works much better for me due to the fact that I have access to the power outlet and it takes only a few hours to install without considerable modification of the car. Depending on the engine specification, you can install it right before the pump between the engine and lower radiator hose. However, 1CD-FTV has thermostat right where the radiator hose connects to the engine, so it does not make sense to install it there. As a result, I chose to put it in the hose between the engine and car cabin heater that is located right beyond the turbine under diesel fuel and air filter. The manufacturer recommends using the heater for no more than 3 hours. Also, make sure that you drive the car for some time to exclude the air from the system.

Products that I bought:
1. 500W in-line heater with 16mm hose from Biltema: 38-824 https://www.biltema.no/bil---mc/bilti...
2. 1.5m cable that goes under the hood from Biltema: 40-203 https://www.biltema.no/bil---mc/bilti...
3. Outside 2.5m cable that connects to 220V outlet from Biltema: 40-200 https://www.biltema.no/bil---mc/bilti...
4. 1m of 16mm hose from Biltema for car coolant: 52-508 https://www.biltema.no/bil---mc/bilde...
5. 50cm bent 16mm hose from Biltema for car coolant: 52-503 https://www.biltema.no/bil---mc/bilde...
6. Mounting bracket for a licence plate from Biltema: 38-786 https://www.biltema.no/bil---mc/bilti...

Tools: 10-12mm wrench, WD-40, pliers, cross-slot screwdriver, plastic self-locking band, water pump pliers, cutting pliers, knife, 1L of spare red antifreeze, 2L bottle to collect coolant temporarily, bucket, 5-10ml of car oil, screws. I had to cut about 20-25cm long hoses both bent and straight to connect the heater.

This video is about 1CD-FTV common-rail diesel engine that is installed on many Toyota models: Avensis, RAV4, Corolla, Previa, etc.

More about the 1CD-FTV engine: https://www.engine-specs.net/toyota/1...

Toyota D-4D: https://en.wikipedia.org/wiki/Common_...