newtonlaw

Does anybody notice that the engine in the C300 and 350 warms up to ideal engine temperature (from 0 degree) very quickly?

nyca

it has to, all new cars do, the cats need to come up to temperature very quickly to meet emissions standards. a cold engine/exhaust system pollutes alot.

jstaneff

How quick is "quickly?" Mine takes at least 5 minutes to reach "hot', and a lot of that is on the freeway.

It does get better mileage (mpg) when warm, and even better if the outside air is over 50 F.

newtonlaw

I park my car P4 underground and as soon as i get outside (ground level) the engine is fully warmed up! its like 3 mins or less.

pgaduane

Living in Phoenix - I have to start it to cool it down....

nbturbos

Don't let that fool you though, just because the water temp. is up to running standards, doesn't mean the oil temp. and oil pressure are.

I drive at least 10 mins keeping it under about 2500 rpm until I goose it. Don't want to build up too much oil pressure when cold and blow a seal somewhere.

joebenz

haha, i believe that!

inactiveuser1019

Funny, but I've been thinking that mine is rather slow to warm up. Could the thermostat be stuck in the open position?

Pierre

blastit

i noticed this too. i park in a tower lot and it is really cold in there. the average temp right now in vancouver is 3-5 celcius. within a matter of minutes the car goes from cold to warm.

jstaneff

I checked mine this morning. Outside temp was 46 F. It took 9 minutes and 4 miles to get up to normal operating temperature. I don't find that slow, rather fairly normal. Just leaving the garage, now that's quick!