Caring for a turbocharged car

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Doggiedog

Lifer
Aug 17, 2000
12,780
5
81
Originally posted by: rh71
did they discount the '09s much now that they're not keeping many in inventory in the states? I know 08s are being heavily discounted with the low finance rate.

grats on the 335i... I really wanted that twin turbo for mine but alas only in the X6 which is fugly... and I definitely didn't want to wait for the TT diesel. :(

EDIT>> I see it's 0.9% rate on the '09s too, but were you able to get them close to invoice? BTW, REALLY jealous of your new idrive. :(
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I'm coming off of a G35 sedan Sport 6MT lease. I really wanted a manual again but I was not able to locate one despite waiting 3 months and going through 4 dealers. There is almost no chance of finding an '08 G35S and the '09 G37S 6MT sedan won't be out until March. I went to BMW but they also could not find a manual in the config I wanted (sport package only). The dealers told me it would be hard to find an 08 335i in stick but that I could order an 09. They quoted me a good price just a few hundred above invoice with 0.9% financing so I went with it instead. I didn't get iDrive. I didn't think it was worth getting the GPS. I think I should have done the European delivery though. It sounds like a really good deal. I wouldn't mind trying it out on the Autobahn.
 
R

RGUN

Golden Member
Dec 11, 2005
1,007
3
76
Originally posted by: halik
Originally posted by: RGUN
Originally posted by: Gand1
Originally posted by: nakedfrog
Originally posted by: Possessed Freak
If you spool up the turbo, make sure you idle/run normal for 5+ minutes before turning it off.
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Five minutes? :Q
That seems excessive.
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5 mins is waaay excessive... my TT has no turbo timer but depending on how hard I drive it I let it idle from 30 seconds to a few minutes tops.
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There is no need for a cool down period on modern turbocharged cars for street use. They are both oil and coolant cooled, and the system is setup in such a way that when you shut the car off, the coolant continues to circulate until the temperature of the turbo no longer heats up the fluid.

Turbo timers, or cool down periods are a waste of gas period.

*edit* to add a few other points. Make sure you use the best fuel available to you. If you ever have to run a lower grade fuel, be sure to stay out of boost! (does this car come equipped with a boost gauge?). As stated earlier, do not slide on the oil change frequency.

If you start adding power than you will also need to change the plugs every 3rd oil change or so - dont get fancy, go with coppers or whatever your manual recommends.

Do not make any modifications without looking into engine management requirements.
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Hmm I don't think my Audi has coolant recirc pump, but the turbos are hooked up to both oil and coolant.
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As long as your turbo is not the highest point in your cooling system, then it will continue to circulate coolant.

 
M

melijak

Senior member
Aug 5, 2004
219
0
0
Great car!
I have had mine for 18 months now. Only following the recommended maintenance by BMW. First oil change in one year, no problems so far.
Broke mine in in Munich at the authoban - 140 miles in hour with 7 miles on the odo, but thats the fun when you lease a car.
You will love it. I would buy my out actually, if BMWFS give me a good deal and ext. warranty for cost. One complain - brake dust, but since the car stop on a dime, I deal with it.
If you get snow where you live, you would be surprised howe good it handles in the snow with some winter tires.
 
D

Doggiedog

Lifer
Aug 17, 2000
12,780
5
81
Originally posted by: melijak
Great car!
I have had mine for 18 months now. Only following the recommended maintenance by BMW. First oil change in one year, no problems so far.
Broke mine in in Munich at the authoban - 140 miles in hour with 7 miles on the odo, but thats the fun when you lease a car.
You will love it. I would buy my out actually, if BMWFS give me a good deal and ext. warranty for cost. One complain - brake dust, but since the car stop on a dime, I deal with it.
If you get snow where you live, you would be surprised howe good it handles in the snow with some winter tires.
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Thanks.

I am planning on getting some Blizzaks for the winter. I had summer tires on my Infiniti and could not move it even a foot with snow on the ground. I switched to Yokohama Avid All Season tires but they were terrible too. Any incline and my car would not move.
 
M

melijak

Senior member
Aug 5, 2004
219
0
0
Check out the Dunlops M3's. Performence winter tires. I had them on my Subaru wrx and now on the 335i and they do excellent job in the snow and ice and on the cold dry pavement are quiet as a mouse.
 
rh71

rh71

No Lifer
Aug 28, 2001
52,844
1,049
126
I had no idea you can get a BMW without idrive. :confused: Do you mean just no nav?

I checked out the options on the 335i.. I would really like to know why an option like comfort access was twice as expensive on the X5... an antenna and sensors on 4 doors and the trunk handle... all the same. :|

And active cruise control is smexy.. but at $2400... ouch.
 
Blackjack200

Blackjack200

Lifer
May 28, 2007
15,995
1,688
126
Awesome, awesome car. I think the 335 is one of the best all around cars on the road. I'm trying to track down a 2.0T Audi A4 to at least get a taste of direct injected turbocharging, but it won't have that sweet BMW straight six. Congrats.
 
DivideBYZero

DivideBYZero

Lifer
May 18, 2001
24,117
2
0
Remember when waiting for the motor to get to operating temp, watch the OIL temp NOT the water temp.
 
D

Doggiedog

Lifer
Aug 17, 2000
12,780
5
81
Originally posted by: Blackjack200
Awesome, awesome car. I think the 335 is one of the best all around cars on the road. I'm trying to track down a 2.0T Audi A4 to at least get a taste of direct injected turbocharging, but it won't have that sweet BMW straight six. Congrats.
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I looked at the new A4 and walked out of the showroom. They were asking $50K for one with all the options plus the S line package but the car was a 2.0T! You can almost get an M3 for that much. Even their regular 2.0T with some options were about $43K. I don't know what Audi is smoking!

I will have to admit that the new version looks very nice though. I saw a white one with black rims on the street and it looked sweet.
 
P

Possessed Freak

Diamond Member
Nov 4, 1999
6,045
1
0
Originally posted by: nakedfrog
Originally posted by: Possessed Freak
If you spool up the turbo, make sure you idle/run normal for 5+ minutes before turning it off.
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Five minutes? :Q
That seems excessive.
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Apologies all, my history on Turbo's is a bit dated. Glad to see that they have improved the cooling times. Perhaps I am just paranoid!
 
M

Mutilator

Diamond Member
Aug 22, 2000
3,513
10
81
I picked up a 135i last month... you're gonna love the 335i. It's hard to keep your foot off the gas for the first 1200 miles but once you get past that... :Q :D

Like the others have said, you don't really need to do anything special... but I would take some time to read the owners manual (available online in PDF form) since you have a wait ahead of you. I read the thing front to back before I even picked up the car.
 
LTC8K6

LTC8K6

Lifer
Mar 10, 2004
28,520
1,576
126
I don't know if it's because it's a diesel, but the new Jeep GC recommends idling up to 5 minutes to let the turbocharger cool down before shutting off the engine.


Stopping The Engine
Before turning off your turbo diesel engine, always
allow the engine to return to normal idle speed and run
for several seconds. This assures proper lubrication of
the turbocharger. This is particularly necessary after
any period of hard driving.
Idle the engine a few minutes before routine shutdown.
After full load operation, idle the engine 3 to 5 minutes
before shutting it down. This idle period will allow the
lubricating oil and coolant to carry excess heat away from
the combustion chamber, bearings, internal components,
and turbocharger. This is especially important for turbocharged,
charge air cooled engines.
The following chart should be used as a guide in determining
the amount of engine idle time required to
sufficiently cool down the turbocharger before shut
down, depending upon the type of driving and the
amount of cargo.

Driving Conditions Load Turbocharger Temperature Idle Time (in minutes) Before Shut Down
Stop & Go Empty Cool Less than 1
Stop & Go Medium Warm 1
Highway Speeds Medium Warm 2
City Traffic Max. GCWR Warm 3
Highway Speeds Max. GCWR Warm 4
Uphill Grade Max. GCWR Hot 5
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T

thedarkwolf

Diamond Member
Oct 13, 1999
9,034
127
106
"After full load operation, idle the engine 3 to 5 minutes "

The "After full load operation" is the important part. That doesn't happen very often. If you beat the ever living hell out of it and immediately stop and shut it off then yeah that is bad. The idling around the parking lot or your neighborhood is usually enough of a cooling down period for normal driving.

The turbo in my 89 dodge caravan was still alright at 150k miles when I pulled it to put a bigger junkyard turbo on it. It had some shaft play but not enough to hurt anything yet. You know that thing just had to get great care over the years so if it was alright I doubt you need to worry too much.
 
TehMac

TehMac

Diamond Member
Aug 18, 2006
9,976
3
71
Originally posted by: Mutilator
I picked up a 135i last month... you're gonna love the 335i. It's hard to keep your foot off the gas for the first 1200 miles but once you get past that... :Q :D

Like the others have said, you don't really need to do anything special... but I would take some time to read the owners manual (available online in PDF form) since you have a wait ahead of you. I read the thing front to back before I even picked up the car.
Click to expand...

Does the 135i have a turbo?
 
Zenmervolt

Zenmervolt

Elite member
Oct 22, 2000
24,514
44
91
Originally posted by: LTC8K6
I don't know if it's because it's a diesel, but the new Jeep GC recommends idling up to 5 minutes to let the turbocharger cool down before shutting off the engine.


Stopping The Engine
Before turning off your turbo diesel engine, always
allow the engine to return to normal idle speed and run
for several seconds. This assures proper lubrication of
the turbocharger. This is particularly necessary after
any period of hard driving.
Idle the engine a few minutes before routine shutdown.
After full load operation, idle the engine 3 to 5 minutes
before shutting it down. This idle period will allow the
lubricating oil and coolant to carry excess heat away from
the combustion chamber, bearings, internal components,
and turbocharger. This is especially important for turbocharged,
charge air cooled engines.
The following chart should be used as a guide in determining
the amount of engine idle time required to
sufficiently cool down the turbocharger before shut
down, depending upon the type of driving and the
amount of cargo.

Driving Conditions Load Turbocharger Temperature Idle Time (in minutes) Before Shut Down
Stop & Go Empty Cool Less than 1
Stop & Go Medium Warm 1
Highway Speeds Medium Warm 2
City Traffic Max. GCWR Warm 3
Highway Speeds Max. GCWR Warm 4
Uphill Grade Max. GCWR Hot 5
Click to expand...
Click to expand...

It's different because it's diesel. Diesel turbos produce boost at much lower RPM than turbos on gasoline engines. A diesel turbo is usually designed to begin providing boost just off idle, while a gasoline engine may need 2,000 to 2,500 RPM to begin making boost. A diesel's turbo works much harder and you're in boost much more often. Remember, a diesel never produces manifold vacuum, so even at steady cruise on flat land, where a gasoline engine won't be in boost, a diesel will be under boost.

They're really very different animals.

ZV
 
M

Mutilator

Diamond Member
Aug 22, 2000
3,513
10
81
Originally posted by: TehMac
Originally posted by: Mutilator
I picked up a 135i last month... you're gonna love the 335i. It's hard to keep your foot off the gas for the first 1200 miles but once you get past that... :Q :D

Like the others have said, you don't really need to do anything special... but I would take some time to read the owners manual (available online in PDF form) since you have a wait ahead of you. I read the thing front to back before I even picked up the car.
Click to expand...

Does the 135i have a turbo?
Click to expand...

The 135i has the same twin turbo I6 as the other x35i cars. It's just smaller and lighter. ;)
300hp/300tq (underrated) 0-60 in 4.7, 1/4 mile in 13.3.
 
zerocool84

zerocool84

Lifer
Nov 11, 2004
36,041
472
126
Most new cars limit boost until it has reached the proper operating temp but how many people rev the snot out of their cars when it's cold???
 
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