Average Time To Reach Normal Temperature Of Engine

[Sam29]

Hi,

I was driving focus (petrol 1.6) and then bought D-4D (2.0) avensis on 53 plate.

Now comparing them warming up in the morning, focus is very quick. If I start driving after warming up for 1 minutes, it reaches to standard temperature in 3-5 minutes.

With Avensis, if I keep it on in the morning it take ages before temperature becomes normal. However if I starts driving after warming up for 2 minutes, it takes about 7-10 minutes before temperature goes to normal.

My Questions are:

1- How much time your car takes before temperature becomes to normal? Am I wrong to compare focus with avensis?

2- Any strategy which I should follow to avoid any harm to cold D-4D or any way of enhancing heating the engine?

3- In Toyota manual, there is a heater button next to switch for rear door mirrors. I've tried to run this heater for 2-5 minutes, but it never makes any difference? What is it for? Does it work in your car?

Any replies will be appreciated.

Cheers and enjoy your weekend.

[Big Kev]

Hi Sam,

If you nip over to Rav4 forum, you will find more than one excellent explanation re heat-up times of petrol engines versus diesel. All to do with much more efficient burning of the diesels, apparently, but some of it way above my head. My 2.2 takes ages, whereas wifes 3 door petrol takes 2 miles even in the recent crud weather to start putting heat through.

Stay on Avensis forum and do a search for "power heater" and this explains how that switch works.

Big Kev

[Sam29]

Thanks Big Kev

[rickers]

Sam;

Based on my experience with a petrol Avensis, coming from a petrol Mark II grey import, i found that the Avensis takes ages before the needle reaches the 'normal' position. at first i thought the thermostat was broken but then i did not get a 'colder' reading when going down a hill. I now think that the postition of the temperature sender is in a different position. on the Mark ii i think it woulds be 'inside' the thermostat circuit i.e the water that is circuilated inside the engine before it heats up sufficient and opens the thermostat.

On the Avensias I believe the sender is outside the thermostat circuit as it also 'nudges' the needle as the water warms.

I have to admit i did not look into this too deeply, just my thoughts.

rick

[Sam29]

Cheer mate, too much detail