S3 - Warming up/Cooling down

[DaveMK^]

sorry if its been covered.

What do you guys deem a proper warm up of the engine before blasting it?

and cooling down involves what exactly?

Thanks

 

[vanilla_ice]

Personally I wait for a few minutes (depending on the road) after the temp reading has settled on 90. Never before, as that is the water temp and not engine oil temp if I recall correctly.

If I have driven hard I will take it easy for the last half a mile of the trip and then let the engine idle for up to 30 seconds before switching off.


ICE

 

[Aky]

as soon as the temp hits 90 degrees its a green light. It takes me 30 seconds to get down my drive way so at a crawling pace and without boost then I think that will suffice. My mate in his Cossie leaves it 5 minutes to warm up before driving and 5 mins to cool down - ****** to that!

 

[Ballcrusher]

5mins worm up then no higher than 3000rpm till temp its 90 then on cool down hit the turbo timer

 

[voorhees]

My mate in his Cossie leaves it 5 minutes to warm up before driving and 5 mins to cool down - ****** to that!

must be a ford thing
a workmate who had a escort rs turbo used to do the same and used to berate me for wellying it from cold,his car has sadly gone and my black beauty is still kicking.
Drive it like you stole it Dave

 

[S3 NIK]

Isn't that just the water temp.
Oil is preserving the turbo and as far as i know oil takes longer to reach its optimum working temperature than it takes the water to hit 90 degrees.
I could be wrong though........
Nik.

as soon as the temp hits 90 degrees its a green light. It takes me 30 seconds to get down my drive way so at a crawling pace and without boost then I think that will suffice. My mate in his Cossie leaves it 5 minutes to warm up before driving and 5 mins to cool down - ****** to that!

 

[vanilla_ice]

Isn't that just the water temp.
Oil is preserving the turbo and as far as i know oil takes longer to reach its optimum working temperature than it takes the water to hit 90 degrees.
I could be wrong though........
Nik.

That's what's behind my thinking too.

ICE

 

[joshW]

5mins worm up then no higher than 3000rpm till temp its 90 then on cool down hit the turbo timer

my sound silly to some but what does a turbo timer actually do? and is it worth purchasing?

josh

 

[jojo]

I drive for at least another mile after the temp needle hits 90 on the dash before giving it the beans, oil temp is crucial to keeping everything in check. you can also feel the engine easier to rev when the oil temp is upto operating temperature, as it starts to thin.

 

[Ballcrusher]

The number one cause of turbo failure is oil "coking". Oil "coking" occurs when a turbocharger is not properly cooled down and the oil that normally lubricates the center cartridge heats up and forms solidified oil deposits. A turbo timer allows an engine to idle for a preset time after the ignition key has been turned to the off position and removed.

 

[danotto]

my car takes around 5mins to get to 90degrees i thought it was rather slow but is this normal.

 

[god_thats_quick]

I generally try to stay off boost as much as possible until the car has warmed up (obviously this is almost impossible) but mine will take over 4 miles of gentle driving for the water temp to get to 90 then you can tell like jojo says when the oil gets up to temp as it gets smoother and the economy goes right up if crusing at the same speed.

I also try to take it gentle and again off boost for about the last 2 miles / few minutes as I don't fancy paying for another new engine / turbo

 

[satanmademedoit]

my sound silly to some but what does a turbo timer actually do? and is it worth purchasing?

josh

These keep the car runnig after removing the keys, setting the alarm and walking into tesco's to do your shopping. The oil pump is therfore still circulating oil round the importatnt bits, allowing a gradual cool down and constant supply of oil to the turbo. It basically prevents the turbo from benig starved of oil when its still baking hot from trashing it.

I believe,but not 100% that not many Audi owners have these fitted, i've mostly seen them on big turbo'd japanese rice burners!

 

[joe6886]

I thought the BAM engined ones had a system on that runs oil through the turbo for a couple of minutes anyway when you have switched the car off?

 

[S3 NIK]

IMO Turbo timers are a waste of money, drive sensibly for the last few miles of a journey and that should be enough. Plus i don't like the idea of my engine running while i'm away from the car.
Nik.

 

[S3 NIK]

My S3 makes a humming noise when my engine is turned off so i think you could be right. I had a V6 4Motion Golf that did the same thing.
Nik.

I thought the BAM engined ones had a system on that runs oil through the turbo for a couple of minutes anyway when you have switched the car off?

 

[joe6886]

I'm pretty sure they do, I wouldn't imagine the same on your Golf though as there is no turbo to cool down.

 

[Crazypete00]

thats the water pump still running after you've turned the ignition off.

 

[god_thats_quick]

That's a specific afterrun coolant pump (not the belt driven water pump) that you can hear after the car is turned off.

I don't think turbo timers really help, there's just too much heat under the bonnets of these cars, might help the turbo a little, but what about everything else sitting and cooking.

 

[S3 NIK]

As described its a coolant pump. The 4Motion does have the same feature even theres no turbo. The engine bay is pretty cramped a with the 2.8litre lump so heat build up is a potential problem hence the coolant circulating after the engine is switched off.
Nik

I'm pretty sure they do, I wouldn't imagine the same on your Golf though as there is no turbo to cool down.

 

[ash_s3]

I have a certain point on my journey home, when i pass it i take it easy - no boost.

Same when setting off in the morning, i wait until my coolant is at 90 degrees, if the water has warmed up by then, most other stuff should have done too