Sold the Z yesterday

gsxr750

Which engine are you talking about the 6 cylinder turbo or the 4 cylinder engine. TrueCar.com rates the 6cyl, turbo at 300hp/300lb .

Also note that the 6 cylinder is a 3 liter turbo charged motor, to get it up to the 300hp. Turbo charged motors are not really that reliable in the long run for making high horse power. Most of the time the turbo system gives out before rest of the engine and is very costly to fix.

Also making changes to the mapping with aftermarket chips or tuners can greatly effect the reliability and longevity of the motor. While you can easily change your engine map on most turbo motors and extract a lot more HP, it comes at a price. Often owners who do this, wish they never did it down the road after they experience major break downs or costly repairs, that won't be covered under the waranty.

Also while I will agree that BMW does make some fine cars, but they are also very costly and complex to work on. Replacement parts are about 3-4 times the cost of a japanese or american car for similar parts, and often the way the car is built , you have to pull apart a lot of major assembles to even replace a small item or part. I had a friend that had a late 90's M3 that he paid a $1000 in labor to have a windshield wiper motor replaced.

So good luck on it and its best to get the extended bumper to bumper waranty on this car, if you plain to drive it for a long time and keep that engine stock , its not worth it, to screw around with it.

r1eater

LOL! Have you ever owned a turbo car that you personally had problems with? It seems like you are speaking from hear say..

I owned a 2001 Audi S4 that I had an APR tune stage 3 kit on that never had problems and to this day doesn't. It runs 11's on street tires no problem. I just traded in my 2008 STI that was custom tuned and like the Audi was running more timing and more boost. Never had issues with it....

Too the OP, congrats! Let us know what you end up doing to the BMW!

Jeffblue

OP got a 335D, not a 335i. The 335D is a 3.0L i6 diesel with twin turbos. you are thinking of the 335i. and as far as the rest of your opinions on forced induction, like someone else said, they sound like they are based on hearsay rather than experience. as far as reliably high horsepower cars, there aren't many that are not Forced induction. most of the highest hp (1000+hp) cars have TT or supercharged large displacement motors.

TreeSemdyZee

Also probably based on old turbo technology. Back in the 80s most turbo cars were crap.

gsxr750

You must be getting a 2011 335D , it appears bmw stopped making it for 2012

I had a turbo 300zx anniversary edition , and the previous owner had the turbo rebuilt 2 times in only 40k miles.

My brother had a turbo diesel ford 2007 f350, he did the turbo remap and bigger exhaust, started having excessive carbon build up in the intake, and turbo, also started having injector problems. Major problems at only 30k miles.

The simple facts with turbos,
1. Turbine is proned the early failure due to the tremendous temperatures they operate at and also get impeller wear and bearing failure.
2. Internal engine components are subjected increased stress, due to the increased power made by the turbo.
3. Doing remapping and increasing HP out to the turbo, you have to make sure by doing so that you are not exceeding the design limits of the engines internal components.

I would always take a larger cubic inch normally aspirated gas engine over a small high output turbo any day of the week.

Diesels do have their place for towing or in industrial or 18 wheelers etc. but not in cars.

Then you have the added cost of diesel over pump gas.

Pharmacist

really? where i live diesel is always a bit cheaper than gasoline

__________________
2009 370z Sport Touring/Nismo shift Knob/Z1 motorsports 34 row oil cooler

ImportConvert

Then you live in a rare, rare place.

BMW makes a very nice car. I have friends who own them. Some sucked, and some ran forever with not a single problem. The one's that sucked ran the gamut from M3's, to base 3'series.

The car is very expensive to own out of the warranty period.

There is a reason BMW/Mercedes now offer free maintenance basically while under warranty.

Very nice cars, and different from your Z. Enjoy it, but sell it about 6 months before the warranty is up. Diesels of any make other than old farm trucks are $$$$$$ to work on when it comes to the fuel system, etc.

Akmcmahon

Sounds like your family is cursed. Turbos are no less reliable than NA cars. Most get better gas mileage. Diesels are more reliable than petrol and last longer. My TT Supra converted to a single running 29psi ran without issues until I sold it at 90k miles. My Evo 8 running 22psi ran perfect. Every one I know has never had any issues outside the norm with a turbo engine and almost all have been modified.

Sucks you and your brother had problems, but that's far from fact to justify making a blanket statement like that. I will agree, however, that tuning needs to be done smart. Exceeding the threshold of your engine's capacity will of course cause damage and things to fail. But that's true for any type of motor.

r1eater

1. Wrong, they are not anymore prone to early wear out than any other component in the motor.

2. How is this any different than any other power adder? Also the motors are built to higher tolerances than the OEM spec, this is what professional tuners take advantage of when they tune.

3. Again if done correctly the the motor is fine, but thats true about anything. Reminds me of the old days when these young kids would get manual boost controllers installed and manually crank the boost up then blow their motors/turbos.


I completely agree. This sort of thinking reminds me of how people feel towards running Nitrous. People that do not know how to properly do it will blow their motors however done correctly its 100% fine.. Most times you will hear people say its dangerous and how a cousins, brother, uncles, sisters, person she knows had their motor rebuilt due to that evil Nitrous....