As tested, over $50,000
Engine: 3.0-liter, 265-horsepower, 425 lb-ft of torque dual overhead cam (DOHC), inline 24-valve 6-cylinder Advanced Diesel engine with aluminum engine block, twin-turbo technology and third-generation piezo common rail direct injection Electronic throttle control
Transmission: 6-speed steptronic automatic transmission with Adaptive Transmission Control
Weight: 3825 lbs
BMW Advanced Diesel in bold black print across the side of this week’s test car let everyone know what was going on under the sleek hood; otherwise, you would never have guessed it was a diesel. I was amazed when I jumped on the gas to be thrown back in the seat like I was in a Porsche, not a finely appointed sedan that seats five. That’s just the half of it. BMW has turned their 3.0-liter in-line six cylinder in to a diesel-breathing torque monster that still sips the fuel and make you feel greener at the pump. It churned out a pavement pounding 425 lb-ft of torque. To put that in perspective, that’s more torque than the V-10 powered BMW M5, and one more lb-ft than a new Corvette. While torque is often a diesel engines strong suit, horse power is not. The 335d is ponied up with 265 horsepower, just what you need to get you going. It does just that with 0 to 60 in 6.0 seconds, according to BMW.
BMW is not the first one to market with a clean running diesel. They have waited to make sure their system outruns the competition. While a VW Jetta TDI is not really a fair comparison to the BMW, the 335d manages 36mpg on the highway while the Jetta can achieve 40mpg highway. The BMW has 125 horsepower more and 189 lb-ft more of torque. On the other hand, the VW’s MSRP is $20,000 less the BMW. On the opposite side of the diesel spectrum is Mercedes E320 BlueTEC. With an MSRP $10,000 higher than the 335d, Mercedes 3.0-liter V-6 produces 400 lb-ft of torque and only 210 horse power. With the Mercedes getting an average fuel economy of only 23 mpg city and 32 mpg highway, I would say if you’re in the market for a performance sedan or you just want to get a car with great fuel economy, the 335d is worth a drive. Even if you’re not, it’s worth a drive to see how different this diesel is.
The 335d engine gets a huge boost from the twin-turbo chargers and the common-rail direct injection. The turbos have almost no noticeable lag and the direct injection adds just the right amount of fuel under extremely high pressure to ensure every drop is used. A six-speed automatic gear box is the only available transmission. It is one of the few that can stand up to the massive torque.
The AdBlue system keeps the 335d 50 state emissions legal. It basically adds a filter and a catalyst to the exhaust system to reduce that nasty smoke we are all used to seeing from a diesel engine. During my time with the car there was no diesel smell, the exhaust smelled better than my gas fueled car. The following paragraph is from BMW explaining the AdBlue system:
To optimize emission management, Advanced Diesel with BluePerformance
incorporates an oxidation catalyst placed just downstream of the exhaust
manifold, a diesel particulates filter housed in the same unit and an SCR
catalyst with the urea injection. In addition to filtering out even the smallest particles from the flow of exhaust gases, this combination ensures effective reduction of nitric oxides (NOX) by way of a chemical reaction within the exhaust system initiated by the injection of a small dose of urea referred to as AdBlue. The ammonia (NH3) generated in this process within the SCR catalyst subsequently converts the nitric oxides (NO and, respectively, NO2) in the exhaust gas into environmentally compatible nitrogen (N2) and vapor (H2O).
More information about the advanced diesel engine is available at www.bmwusa.com.
Besides the latest and greatest under the hood, the most recent iDrive system controls some of the cars systems. This generation iDrive is more intuitive than in the past. Some functions have been returned to the dash to make things less complicated. My test car came with the iPod adapter kit. It was one of the best iPod interfaces I have used in any car. The Lodgi7 audio system makes your playlist sound and feel like a personal concert, minus the smoke and annoying crowds. With thirteen speakers, including two subwoofers, it would make any audiophile drool. The seats are supportive and comfortable even after three hours of highway driving. The ride and handling are crisp and confident around every turn. There is plenty of room for the whole family, with car seats and luggage for a weekend trip. With up to 560 miles on a single tank of fuel I could drive to New York and back to southern Maine without a fill-up. This makes finding gas stations with diesel fuel a moot point.
The navigation system is capable of real-time traffic updated, so getting from A to B can be efficient as possible.
Most modern cars are equipped with a slew of safety features from advanced braking systems to airbags all around. In the 335d, BMW has added another level of air bag protection. The Head Protection System, (HPS) is an inflatable tubular structure to protect the heads of the front and rear seat passengers. It works with the side air bags to help prevent head injuries in a sever side impact.
Overall, the 335d is an amazing engineering feat and a big advance in diesel technology. I averaged about 33 mpg over the week with a significant amount of driving on the highway.
I would like to see a 335hd, a hybrid diesel, combining the best of both technologies and making a car that satisfies a need for speed, fuel economy, emissions controls, and comfort.
The BMW X5 will also get the diesel power plant, will achieve 26 mpg high-way. Not bad compared to the V-8’s 19 mpg high-way rating.