The steering wheel features buttons for controlling the MFI and for adjusting audio volume. Interestingly, the telephone button is ever-present, even if Bluetooth hands-free isn't equipped. With nothing to connect to, the button merely mutes the stereo.
The drab situation doesn't improve when it comes time to crank the tunes. Our Jetta TDI was equipped with Volkswagen's Premium VII six-disc, in-dash CD player. Audio sources include the aforementioned CD changer, which is MP3 compatible, available satellite radio, and an auxiliary input in the center console.
With a total of 10 speakers at its disposal, the stereo does a fairly good job with stereo separation and staging. Unfortunately, this is one of those stereos that stages the audio behind your head, so all of the music sounds like its coming from the rear window. The audio system also seems to emphasize volume over fidelity, with boomy bass and mid ranges that muddy the higher frequencies. Users more interested in quantity of sound than quality will be the only ones who could possibly appreciate this.
Anyone wanting a slightly more high-tech cabin experience can upgrade to Volkswagen's RN510 hard-drive-based navigation system, which features touch-screen GPS navigation with turn-by-turn instructions that are mirrored on the MFI in the instrument cluster, 30GB of hard-disk space for ripping audio, and a USB connection for digital-audio players.
An iPod connection is available as a dealer-installed option, as is Bluetooth hands-free.
Under the hood
As plain vanilla as the Jetta TDI's cabin and exterior may be, this is a vehicle that's causing a lot of fuss in the automotive world. The reason lies under the hood: a 2.0-liter turbodiesel engine that produces 140 horsepower and a spectacular 236 pound-feet of torque while burning Ultra Low Sulfur Diesel fuel. Max torque is available as low as 1,750rpm.
Although the diesel features 30 fewer horsepower than the inline-five of the gasoline variant, the abundance of low-end torque means the TDI gets off the line better. Sixty miles per hour comes in 8.2 seconds, matching that of the gasoline engine.
The 2008 Green Car of the Year, the Jetta TDI is EPA rated for 30 city and 41 highway mpg. However, unlike a hybrid, the TDI engine won't automatically get good fuel economy for you, and requires thrifty driving to reach those numbers. In the hands of a lead-footed journalist, for example, we were able to hit the 41 mpg mark for individual highway trips, but only averaged 23 mpg for the duration of our testing over a mixed testing cycle.
As noted in the "On the road" section, the TDI's chunky low end makes it suitable for low-speed technical courses that would leave a high-revving gasoline engine hunting for gears.
Speaking of gears, our Jetta TDI was equipped with a six-speed, manual transmission. However, the Jetta's clutch pedal keeps us from being 100 percent enthused about the manual transmission. Featuring a deceptively long travel and short, but vaguely defined, engagement point, the Jetta TDI's clutch is, at times, difficult to modulate in stop-and-go traffic.
Once the Jetta gets moving, the vague clutch becomes less of an issue and we were able to enjoy the fantastic shifter that just falls into its gates with smooth and reassuring clunk.
But make no mistake, the Jetta TDI is no canyon carver. The transmission is geared a bit tall for optimal highway fuel economy. Additionally, the suspension and steering both pale in comparison to the competition from Honda and Mazda.
So, is the 2009 Volkswagen Jetta TDI the car that will save the world? Will it be the car that brings greenies and enthusiasts together?
In short, it's close, but not quite there yet. While we like the Jetta TDI's fantastic turbodiesel engine's ability to combine eco-friendliness and good performance in a simple package without hybrid techno-trickery, we just don't think that the average John Q. Driver will spend much time at the top of the EPA's estimated fuel economy ratings.
Then there's the small matter of the vehicle wrapped around the engine. The vehicle's aesthetic and cabin tech are, at best, uninspiring.
Buyers are able to upgrade to the DSG automated-manual transmission for $1,100 and the RNS 510 hard-drive-based navigation for $1,990. As tested, our Laser Blue VW Jetta TDI weighs in at an MSRP of $23,270, including the $1,000 optional power sunroof. For that price, a greenie could have the Honda Civic Hybrid with its superior fuel economy, or a speed demon could pick up a Mazda Mazdaspeed3. However, the Jetta TDI represents a unique compromise between the two types of performance.