diesel owners do you let your car idle

Bobo · 03-04-2006, 04:06 PM

for a while before switching off after a journey ?

apparently it protects the turbo ??

anyone know if this is true or a myth ?

shimshimhada · 03-04-2006, 04:07 PM

That's what a turbo timer is for.

Bobo · 03-04-2006, 04:20 PM

what is a turbo timer ?

shimshimhada · 03-04-2006, 04:23 PM

Turbo cars need to cool down by idling before you shut them off (like you said), due to the high oil temperatures. Turbo timers just do that job for you by automatically shutting the engine off after a preset time, instead of you sitting in your car waiting for it to cool down.

N1 · 03-04-2006, 07:01 PM

Absolutely, you shall wait 1 or 2 minutes before, if you were in a highway for long and or high speed. The turbo if shut off continues is circular move in one ax by 50.000 rpm without oil and if you let be often the turbo can break. Despite the evolution even the SUBARUS IMPREZA broke and they are in WRC, not a problem of DIESEL but a problem of turbo.

Paul330d · 03-05-2006, 01:03 AM

I'm not sure this is an issue with modern engines: when you think about an average journey, you very rarely come to a stop immediately after using your turbo for a long period. Most journeys (e.g. returning home) involve a gradual slowing down over several kilometers as you approach your destination and the turbo has time to cool down on its own. The only time when this is not the case is on the motorway when you have to stop suddely for a traffic jam, or a toll, for example, but in these situations you keep your engine running anyway.

Broken1 · 03-05-2006, 03:02 AM

I don't necessarily "idle" my engine, but i don't tear through my neighbourhood so the turbo does get to cool down on the way to my house, and then there is also the opening of the gate (which takes about 20-30 seconds)

In day to day driving, the idling you do finding a parking should be enough...but if you have just been on a long journey, and you are stopping at a gas station for a rest - wait about 1.5 minutes before killing the engine...You don't HAVE to...it's just better.

03-04-2006, 04:06 PM	#1
Bobo New Member 5 Rep 26 Posts Drives: 320 D SE E90 Join Date: Jun 2005 Location: N Ireland iTrader: (0)	diesel owners do you let your car idle for a while before switching off after a journey ? apparently it protects the turbo ?? anyone know if this is true or a myth ?
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03-04-2006, 04:07 PM	#2
shimshimhada Brigadier General 442 Rep 4,838 Posts Drives: Portal Join Date: Jul 2005 Location: Portal iTrader: (2)	That's what a turbo timer is for.
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03-04-2006, 04:20 PM	#3
Bobo New Member 5 Rep 26 Posts Drives: 320 D SE E90 Join Date: Jun 2005 Location: N Ireland iTrader: (0)	what is a turbo timer ?
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03-04-2006, 04:23 PM	#4
shimshimhada Brigadier General 442 Rep 4,838 Posts Drives: Portal Join Date: Jul 2005 Location: Portal iTrader: (2)	Turbo cars need to cool down by idling before you shut them off (like you said), due to the high oil temperatures. Turbo timers just do that job for you by automatically shutting the engine off after a preset time, instead of you sitting in your car waiting for it to cool down.
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03-04-2006, 07:01 PM	#5
N1 Second Lieutenant 15 Rep 272 Posts Drives: BMW 320d M Join Date: Feb 2006 Location: EU iTrader: (0)	Absolutely, you shall wait 1 or 2 minutes before, if you were in a highway for long and or high speed. The turbo if shut off continues is circular move in one ax by 50.000 rpm without oil and if you let be often the turbo can break. Despite the evolution even the SUBARUS IMPREZA broke and they are in WRC, not a problem of DIESEL but a problem of turbo.
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03-05-2006, 01:03 AM	#6
Paul330d Torque junky 115 Rep 1,688 Posts Drives: Remapped e90 330d Join Date: Jan 2006 Location: France (UK expat) iTrader: (2) Garage List 2006 330d [0.00] 2005 Fiat Panda 4x4 [0.00]	I'm not sure this is an issue with modern engines: when you think about an average journey, you very rarely come to a stop immediately after using your turbo for a long period. Most journeys (e.g. returning home) involve a gradual slowing down over several kilometers as you approach your destination and the turbo has time to cool down on its own. The only time when this is not the case is on the motorway when you have to stop suddely for a traffic jam, or a toll, for example, but in these situations you keep your engine running anyway. __________________ www.greenkeepers.fr - spécialiste des tondeuses à gazon hélicoïdales atco qualcast ransomes lawnflite
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03-05-2006, 03:02 AM	#7
Broken1 Addict 203 Rep 2,074 Posts Drives: 2024 X5 40i M-Sport Join Date: May 2005 Location: Ontario iTrader: (0)	I don't necessarily "idle" my engine, but i don't tear through my neighbourhood so the turbo does get to cool down on the way to my house, and then there is also the opening of the gate (which takes about 20-30 seconds) In day to day driving, the idling you do finding a parking should be enough...but if you have just been on a long journey, and you are stopping at a gas station for a rest - wait about 1.5 minutes before killing the engine...You don't HAVE to...it's just better.
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