Warm up procedure E36 M3

[Fuzz@tinyNET]

My procedure for warming up an M engine is as follows:

1. On initial start-up absolutely no touching of the throttle for at least 8 seconds;

2. Moderate throttle openings only with revs under 3000rpm until the thermostat opens as indicated by the needle settling at operating temp on the water temp gauge;

3. Full throttle only when the oil temp reaches an indicated 80 degrees.

In practice its been my experience that the oil temp takes 15km of town driving to reach 80 degrees in the S50B32 engine.

I don't believe that idling works, and I concur fully with Fordkoppie's analysis of the excess fuel washing oil off the bores of the cylinders.

Don't auditors just look at how they did it last year??:rollsmile:

Definition of an auditor: "Someone who comes to bayonet the wounded after the battle has been fought..." :=):

:fencelook: Intense

 

[Dangz_335]

lol I was talking about that other kind, that sits behind a desk, and crunches numbers...


PS I am an auditor
:fencelook:

 

[Fordkoppie]

, however, on shut down, do you think it's good to hammer a car and immediately switch it off, or let some oil circulate for a short bit before switching off?

You obviously live right next to the highway, so will be doing 250, slam on the brakes, drift into the driveway and be parked in front of the garage with glowing red brakes.....
I suggest you idle your car a little.

The rest of us will be doing some kind of really slow driving before parking in any case, so no need to idle non turbo cars.

Then again, BMW themselves have such little backbones, that they actually allowed the eco-mentalists to get the better of them and proceeded to fit stop/start to their new Turbocharged cars under the illusion of improved fuel economy. I have personally driven these things flat out, followed by harsh braking, and the car will immediately switch off when it becomes stationary.

And then they have the audacity to tell you it has no effect on the durability.

 

[DieselFan]

I read on an international forum that it's in the booklet that it may cause extra wear. So they don't say it doesn't do anything.

 

[Fuzz@tinyNET]

, however, on shut down, do you think it's good to hammer a car and immediately switch it off, or let some oil circulate for a short bit before switching off?

You obviously live right next to the highway, so will be doing 250, slam on the brakes, drift into the driveway and be parked in front of the garage with glowing red brakes.....
I suggest you idle your car a little.

The rest of us will be doing some kind of really slow driving before parking in any case, so no need to idle non turbo cars.

Then again, BMW themselves have such little backbones, that they actually allowed the eco-mentalists to get the better of them and proceeded to fit stop/start to their new Turbocharged cars under the illusion of improved fuel economy. I have personally driven these things flat out, followed by harsh braking, and the car will immediately switch off when it becomes stationary.

And then they have the audacity to tell you it has no effect on the durability.

Fair :thumbs:

I do it for my own peace of mind


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