[Martin528]

One of my coworkers has a 335 I. He says he never really punches the gas till the car has warmed up to preserve life of turbos.
I know there is probably as must fiction as fact out there about turbocharged engine car. I am interested in fact.
Please any info you can share: ( no flamers please )

[bimmerjph]

You aren't supposed to do that regardless if it is turbocharged, supercharged, or naturally aspirated.

[nyc2sd30]

Per the owners manual

Drive away without delay
Do not wait for the engine to warm up while the vehicle remains stationary. Start driving right away, but at moderate engine speeds.

[K-A]

Yes with any engine you're supposed to let it get warmed up before really getting the RPM's up. I'm not sure if it's even more paramount for Turbo motors (?)

I try and abide by this but sometimes it's too tough so every now and then I'll get on it while the motor is cold. Last weekend I accidentally hit the paddles one too many times while overtaking a car and the engine started wailing as I accidentally shifted it immediately into almost redline.... about a minute after I turned my car on. I hated that.

It's not something you want to do a lot but I'd be surprised and let down if these engineers don't make it so that it's not really detrimental to the cars UNLESS done very regularly. I'm sure higher RPM spurts while cold every now and then shouldn't have any lasting effects on your motor (or tranny, which I've heard is also important to have properly warmed up).

[Martin528]

Iunderstand about driving gently while engine warms up. was questioning of there were need for additional precautions with turbo motor. Somewhewre I recall that you should not turn car off soon after turbo engangement that you should drive nornally to let turbo cool down?

[Alan l.]

From my understanding modern day water cooled turbo cars don't require a cool down time before turning off the engine. People use to install things called turbo timers just for that purpose but has become obsolete. Our turbos have both oil and water lines going into it for lubrication and temperature control and from what I've heard those lines remain active for a certain amount of time even after the engine is turned off to prevent stationary oil from just baking inside the turbos.

That said I still make it a habit to not redline the motor within a few miles from my house.

Alan

[nyc2sd30]

I can hear the electric water pump of my 335i whirring away for 3-5 minutes after shutting down the motor. Haven't really noticed it much on my F10 so not sure if it stays on as long. If you ever pop your hood after parking you will noticed things are cooking. BMW turbo engines are built with oil coolers and intercoolers, plus take more than two quarts of oil than a normal engine.

[qadhi79]

it is not just the engine that needs warm up and that's why BMW recommends to drive off without waiting. the transmission and the rest of mechanical parts need warm up too which is only possible if you actually drive the car.

the myth that you should idle the car to get the oil temp in safe zone before driving is not a proper warm up as it only warms up the engine. better drive away and keep under 4k rpm for a while to get the car fully warmed up before driving it hard. the fans and intercooler will keep running even after you turn off the car if required.

[The X Men]

The turbine on the turbo is probably one of the fastest spinning part in your drive train, that's why one should let it warm up and the material expand before pushing it hard.