Terryamg04

Hi guys I just purchased a pre owned 2009 C63

My first ever AMG and previously have been driving M cars .

In my previous car the M3 the cold start in the morning is something I look forward to . Love any car on a cold start. Great way to start my day with the sound hehe


Unfortunately I realize my c63 doesn't do that . When I start the car it goes to like 600-700rpm right away and is quiet . It only holds the rev at 1200rpm like 1 in 10 times I cold start the car

Some say it's due to tuning and the car I bought might have been tuned .

Is this true ? Or something is wrong with my car

Terryamg04

By the way when I start my c63 ambient temperature is about 30 degree celcius and oil temp starts at 35 degree celcius

Mort

It is too hot where you are for a cold start. Put the car in the cooler overnight.

chrisridebike8

Yeah. Def too warm right now. Oil temp has to be like 90F or less on start for there to be a cold start. And the car has to sit for a couple hours. For example, if you start the car and move it into the driveway for an hour and then start to move it back inside, you won't get 2 cold starts close together.

ENV²

Where are you located? Car has to sit for hours and has to start up cold. Dont worry. It will bark soon.

Terryamg04

I'm from Singapore . Left the car parked in the garage for 24 hours but it didn't bark as I expect . In fact most of the time there isn't any cold start


Anyone knows what's the oil temperature threshold before it gives that cold start ?


Some say if my car is flashed local tuners here actually deleted the cold start feature as it is not relevant in my country

Temperatures here ranges from 28 degree celcius to 36 degree celcius


And I noticed the m156 gets hot real quick about 105 degree celcius of oil temp when driving

Terryamg04

Where's my E92 M3 screams when it's started , so does my F10 M5

So far I have been kinda confused with why the AMG is actually the quietest among them

tpliquid

there u go 28c is warm.

ahgli

That's strange, my car barked on "cold" starts in Dubai when the temperature was 45 degrees Celsius

Adi-Benz

Engine block heater

loljk

INS1GNIA

don't be gullible to what others say. It's an attribute of the car and not the tune. It should be easier to tell with a tune but that also depends on the tuner. You could always remove the tune or reflash the tune to see.

beejAMG

im actually embarrased to start my 63 early in the morning on a weekend when i usually use it. wakes up my dogs and eventually my neighbours. winter or summer.

hachiroku

only does high idle if your engine is cold...

also...if the high idle cold start isn't loud enough remove your secondary cats and/or resonator. or just buy some long tubes.

jay rick

I'm pretty sure is the hot weather influence.
I live in Macau and is quiet hot here too. I dont have cold starts on real hot days even if i leave the car overnight. My oil temp starts at 37.
But even if i had normal cold starts, it usually last around a minute.

MTV10

Has nothing to do with hot weather.
Cold starts are to warm the cats ..... they're implemented in the tune.


My car cold starts most days.. but sometimes it does not. I find it very weird.

jay rick

Has everything to do with hot weather and how cold the engine is. Hotter areas means your car will cool slower than in colder area.
Between star up, your engine may not be cool enough to require a cold start up.
Also the OP is not sure wether he had a tunr not.
It is more important to warn up your engine and oil in cold weather than warming up your cat.

CarHopper

It has everything to do with how hot it is. You said it yourself, yours sometimes doesn't cold start. I bet you that's on pretty warm/hot days or while the car has only been sitting for a couple hours and is still hot.

MTV10

My old E60 M5 would cold start not matter what the weather conditions.
Weather it was 10 degrees or 100 degrees... it would always cold start and sound like a complete animal. As long as it sat for 4+ hours....


The C63 is a hit or miss. I really look forward to that aggressive 'bark' followed by the angry rumble in the mornings.... sometimes I leave my house disappointed

MTV10

Think I've figured out the cold start sequence in this car...

What I've noticed is if oil temp is 30+ degrees, car will not cold start. If oil temp is below 30 degrees, it cold starts every time.

Terryamg04

Well that makes sense because it's impossible to get below 30 in my country